QUICK DIAGNOSTIC CHART [SKYACTIV-D 2.2]

id1103a2000400

Fuel Injector (2pin Type)

×: Applicable

—: Not applicable

Troubleshooting item		Intake air system
		Intake air system part		Air cleaner			Intake shutter valve		Compressor (small)	Compressor (large)	Compressor bypass solenoid valve
		Air suction/Leakage/Perforation	Restriction	Deformation	Air cleaner element restricted	Non-genuine part installation	Does not fully close (Does not conform to target value)	Clogging, sticking	Improper operation	Improper operation	Improper operation
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Exhaust system
		Each exhaust system part		Small-type turbocharger	Large-type turbocharger	Regulating solenoid valve	Wastegate solenoid valve	EGR cooler bypass valve
		Leakage	Restriction (mostly in oxidation catalytic converter for diesel, diesel particulate filter)	Improper operation	Improper operation	Improper operation	Improper operation	Improper operation
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Exhaust system			Fuel system
		EGR valve	EGR cooler		Fuel line		Fuel filter
		Improper operation	Leakage (gas)	Clogging	Leakage	Restriction	Leakage	Clogging
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Fuel system
		Sedimentor switch		Fuel warmer	Jet pump (4WD)	Supply pump	Suction control valve		Fuel pressure relief valve
		Always on	Always off	Improper operation	Improper operation	Poor discharge amount	Low adjusted pressure value	High adjusted pressure value	Low adjusted pressure value	High adjusted pressure value
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	×	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	×	×	×	—	×	×
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Fuel system
		Fuel check valve	Fuel feed valve	Fuel system/Fuel injection system malfunction (such as leakage)	Fuel injector
		Improper operation	Improper operation		Open circuit in drive circuit	Short circuit in drive circuit	Leakage	Restricted or clogged	Always open	Always close	QR code mismatch
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	×	×	×	—	—	×	×	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Fuel system			Control system
		Fuel injector	Fuel		PCM				Main relay
		Injection amount correction miss-match	Low cetane value	Inferior constituent	No initiation	No configuration	No learning	Open circuit in back-up power supply circuit of PCM	Always off	Always on
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	×	×	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	×	×	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		MAF sensor			Intake shutter valve position sensor		APP sensor		CKP sensor		CMP sensor
		High input	Low input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	False signal output (no noise, pulse)	Open or short circuit in signal circuit	False signal output (no noise, pulse)	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		ECT sensor			IAT sensor No.1			Boost air temperature sensor			IAT sensor No.2
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	×	×	—	×	×	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	×	×	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	×	—	—	×	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		MAP sensor No.1			MAP sensor No.2			Fuel temperature sensor			Fuel pressure sensor
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	×	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Exhaust gas temperature sensor No.1			Exhaust gas pressure sensor No.1			Engine oil temperature sensor			Engine oil pressure sensor
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Exhaust gas temperature sensor No.2			Exhaust gas temperature sensor No.3			Exhaust gas pressure sensor No.2			A/F sensor
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		BARO sensor (built-into PCM)			Regulating valve position sensor		EGR cooler bypass valve position sensor		EGR valve position sensor		Generator output current signal
		High input	Low input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	×	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	×	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Refrigerant pressure sensor			Check connector	CPP switch (MTX)		Starter interlock switch (MTX)		Brake switch (No.1 signal)		Brake switch (No.2 signal)
		High input	Low input	Open or short circuit in signal circuit	Open circuit	Always on	Always off	Always on	Always off	Always on	Always off	Always on	Always off
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	×	×	×	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	×	×	×	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	×	×	×	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)				Control system (PCM output signal)
		Neutral switch (MTX)		Back-up light switch (MTX)		Fan control module control circuit				A/C relay circuit
		Always on	Always off	Always on	Always off	Open circuit in power supply circuit	Control signal circuit always on	Control signal circuit always off	Open circuit in ground circuit	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	×	×	×
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM output signal)
		Generator control signal	Starter relay circuit			Blow-by heater relay circuit			Glow control module control signal
		Open or short circuit	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open circuit in power supply circuit	Control signal circuit constantly energizes (FET malfunction)	Control signal circuit always off	Open circuit in ground circuit
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	×	—	×	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM output signal)		Mechanical
		A/F sensor heater		Each engine internal part
		Always on	Always off	Large mechanical resistance	Deviation in valve timing	Abnormal compression pressure	No compression in specific cylinder	No compression in all cylinders	Bad compression in specific cylinder	Bad compression in all cylinders	Oil working up or down
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	×	×	—	—	×	—	×	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	×	×	×	×	—	×	×	×
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Mechanical
		OCV		Blow-by heater		Engine oil solenoid valve
		Always on	Always off	Always on	Always off	Open circuit in drive circuit	Short circuit in drive circuit	Valve stuck open	Valve stuck close
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Cooling system					Charging system
		Engine coolant passage		Thermostat		Cooling fan motor	Battery
		Restricted or clogged	Leakage	Always open	Always close	Improper operation	Does not charge	No discharge (deterioration)
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	×
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	×	×
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Charging system							ATX
		Generator			Starter		Glow plug		ATF
		Low power generation voltage	No power generation	High power generation	Open/short circuit in drive circuit	Internal malfunction	Always off	Always on	Oil cooler restriction	Lack of ATF
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	×	×	—	×	×	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	×	—	—	—	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	×	×	—	—	—	—
7	Limited i-stop function operation time	×	×	—	—	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	×
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		ATX			Other
		Automatic transaxle			Engine mount	Instrument cluster	Brake	Tire	Vehicle electric devices
		TCC non-operation	Constant lockup	Abnormal shift point	Looseness	Improper operation	Drag	Low air pressure	Remote transmitter left in vehicle cabin	Large amount of parasitic draw	Large power consumption
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	—	—	—	—	—	—	—	×	×
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	—	—	×
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	×	—	—	×	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	×	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Other				i-stop
		A/C compressor	Immobilizer system		Advanced keyless entry system	i-stop OFF signal malfunction	i-stop OFF switch malfunction	Bonnet latch switch		Door latch switch or liftgate latch switch
		Large mechanical resistance	Improper operation	Unprogrammed remote transmitter	Improper operation	i-stop OFF signal malfunction	i-stop OFF switch malfunction	Stuck open	Stuck close	Stuck open	Stuck close
1	i-stop warning light (amber) illuminates	—	—	—	—	×	×	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	—	—	—	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—	—	—	—
4	i-stop function does not operate	—	×	—	×	×	—	×	—	×	—
5	i-stop function operates under no engine-stop conditions	—	—	—	—	—	—	—	×	—	×
6	Engine does not restart	—	—	—	×	×	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	×	×	—	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	×	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		False detection of driver-side buckle switch		Instrument cluster malfunction	Number of times i-stop function operates exceeds assured operation amount of components	Ambient temperature sensor	Cabin temperature sensor	Solar radiation sensor	Driver-side air mix actuator malfunction	Driver-side air mix actuator position sensor
		Stuck off	Stuck on	Instrument cluster malfunction		Erratic signal input	Erratic signal input	Erratic signal input	Driver-side air mix actuator malfunction	Erratic signal input
1	i-stop warning light (amber) illuminates	—	—	×	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	—	—	×	×	—	—	—	—	—
3	i-stop indicator light (green) flashes	—	—	×	—	—	—	—	—	—
4	i-stop function does not operate	×	—	×	×	×	×	—	×	×
5	i-stop function operates under no engine-stop conditions	—	×	×	—	×	×	—	×	×
6	Engine does not restart	—	—	—	—	—	—	—	—	—
7	Limited i-stop function operation time	—	—	—	—	—	—	—	×	×
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	×	×	×	×	×
9^*1	Acceleration malfunction	—	—	—	—	—	—	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	—	—	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		Steering angle sensor		Low power brake unit load	Power brake unit vacuum sensor	Battery management system malfunction	Brake fluid pressure sensor (built-into DSC HU/CM)	M position switch malfunction (ATX)
		Erratic signal input	Initialization malfunction	Low power brake unit load	Erratic signal input	Battery management system malfunction	Brake fluid pressure sensor (built-into DSC HU/CM)	Erratic signal input
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	×	—	—	×	×	×	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—	—
4	i-stop function does not operate	×	—	×	×	×	×	×
5	i-stop function operates under no engine-stop conditions	×	×	×	×	—	×	—
6	Engine does not restart	×	—	—	×	×	—	×
7	Limited i-stop function operation time	×	×	×	×	×	×	×
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—	—
9^*1	Acceleration malfunction	—	—	—	—	—	×	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	—	—	—	×	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		Low-G (XY) sensor (built-into SAS control module)	TFT sensor (ATX)	Electric AT oil pump malfunction (ATX)	DSC HU/CM malfunction	Drive belt wear	Ignition switch input (PCM terminal 2H)
		Erratic signal input	Erratic signal input	Electric AT oil pump malfunction (ATX)	DSC HU/CM malfunction	Drive belt wear	Stuck on
1	i-stop warning light (amber) illuminates	—	—	—	—	—	—
2	i-stop warning light (amber) flashes	×	×	×	×	×	—
3	i-stop indicator light (green) flashes	—	—	—	—	—	—
4	i-stop function does not operate	×	×	×	×	×	—
5	i-stop function operates under no engine-stop conditions	×	×	—	—	—	—
6	Engine does not restart	—	—	—	—	—	—
7	Limited i-stop function operation time	—	×	—	—	—	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—	—	—	—
9^*1	Acceleration malfunction	×	—	×	×	×	—
10^*1	Vehicle moves when accelerating from standstill on slope	×	—	×	×	—	—

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		Brake switch	Clutch stroke sensor malfunction	DC-DC converter malfunction
		Erratic signal input	Clutch stroke sensor malfunction	DC-DC converter malfunction
1	i-stop warning light (amber) illuminates	—	—	—
2	i-stop warning light (amber) flashes	—	—	—
3	i-stop indicator light (green) flashes	—	—	×
4	i-stop function does not operate	—	—	—
5	i-stop function operates under no engine-stop conditions	×	—	—
6	Engine does not restart	—	—	—
7	Limited i-stop function operation time	—	×	—
8	Ineffective operation of A/C during engine stop (i-stop system)	—	—	—
9^*1	Acceleration malfunction	—	—	—
10^*1	Vehicle moves when accelerating from standstill on slope	—	—	×

*1 :ATX

Fuel Injector (6pin Type)

×: Applicable

—: Not applicable

Troubleshooting item		Intake air system										Exhaust system
		Intake air system part		Air cleaner			Intake shutter valve		Compressor (small)	Compressor (large)	Compressor bypass solenoid valve	Each exhaust system part		Small-type turbocharger	Large-type turbocharger	Regulating solenoid valve	Wastegate solenoid valve	EGR cooler bypass valve	EGR valve	EGR cooler
		Leakage	Clogging	Deformation	Air cleaner element restricted	Non-genuine part installation	Does not fully close (Does not conform to target value)	Clogging, sticking	Improper operation	Improper operation	Improper operation	Leakage	Restriction (mostly in oxidation catalytic converter for diesel, diesel particulate filter)	Improper operation	Improper operation	Improper operation	Improper operation	Improper operation	Improper operation	Leakage (gas)	Clogging
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	―	―	X	X	―	―	―	―	―	―	―	―	―	X	X	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Exhaust system		Fuel system
		EGR valve	Diesel particulate filter	Fuel line		Fuel filter		Sedimentor switch		Fuel warmer	Jet pump (4WD)	Supply pump	Suction control valve		Fuel pressure relief valve		Fuel check valve	Fuel feed valve	Fuel system/Fuel injection system malfunction (such as leakage)
		Clogging	Loss	Leakage	Clogging	Leakage	Clogging	Always on	Always off	Improper operation	Improper operation	Poor discharge amount	Low adjusted pressure value	High adjusted pressure value	Low adjusted pressure value	High adjusted pressure value	Improper operation	Improper operation
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	X	X	X	X	―	―	―	―	―	X	X	X	X	―	―	X
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	X	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	X	X	X	―	―	X	X	X	X
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Fuel system									Control system
		Fuel injector							Fuel		PCM				Main relay
		Open circuit in drive circuit	Short circuit in drive circuit	Leakage	Restricted or clogged	Always open	Always close	Injection amount correction miss-match	Low cetane value	Inferior constituent	No initiation	No configuration	No learning	Open circuit in back-up power supply circuit of PCM	Always on	Always off
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	X	X	X	X	X	X	―	X	X	―	―	―	X	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	X	X	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	X	X	―	―	―	X	X	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		MAF sensor			Intake shutter valve position sensor		APP sensor		CKP sensor			CMP sensor		ECT sensor			IAT sensor No.1
		High input	Low input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	False signal output (no noise, pulse)	Open or short circuit in signal circuit	Engine speed signal	False signal output (no noise, pulse)	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	X	X	X	X	X	X	―	X	X	X	X	X	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	X	X	―	X	X	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	X	X	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	X	―	―	X	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Boost air temperature sensor			IAT sensor No.2			MAP sensor No.1			MAP sensor No.2			Fuel temperature sensor			Fuel pressure sensor
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	X	X	X	―	―	―	X	X	X	X	X	X	X	X	X
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	X	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Exhaust gas temperature sensor No.1			Exhaust gas pressure sensor No.1			Engine oil temperature sensor			Engine oil pressure sensor			Exhaust gas temperature sensor No.2			Exhaust gas temperature sensor No.3
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Exhaust gas pressure sensor No.2			A/F sensor			BARO sensor (built-into PCM)			Regulating valve position sensor		EGR cooler bypass valve position sensor		EGR valve position sensor		Generator output current signal
		High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	Erratic signal input	Open or short circuit in signal circuit	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	―	―	―	X	X	X	―	―	―	―	―	―	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	X	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM input signal)
		Refrigerant pressure sensor			Check connector	CPP switch (MTX)		Starter interlock switch (MTX)		Brake switch (No.1 signal)		Brake switch (No.2 signal)		Neutral switch (MTX)		Back-up light switch (MTX)		Engine oil level sensor
		High input	Low input	Open or short circuit in signal circuit	Open circuit	Always on	Always off	Always on	Always off	Always on	Always off	Always on	Always off	Always on	Always off	Always on	Always off	High input	Low input	Open or short circuit in signal circuit
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	X	X	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	X	X	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	X	X	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Control system (PCM output signal)
		Fan control module control circuit				A/C relay circuit			Fan control module relay circuit			Generator control signal	Starter relay circuit			Blow-by heater relay circuit			Glow control module control signal				A/F sensor heater
		Open circuit in power supply circuit	Control signal circuit always on	Control signal circuit always off	Open circuit in ground circuit	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open or short circuit	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open circuit in circuit on coil side	Circuit on switch side constantly on	Circuit on switch side constantly off	Open circuit in power supply circuit	Control signal circuit constantly energizes (FET malfunction)	Control signal circuit always off	Open circuit in ground circuit	Always on	Always off
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	X	―	X	―	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	X	X	X	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item

Mechanical

Lubrication system

Each engine internal part

Blow-by heater

Engine oil solenoid valve

Engine oil

Large mechanical resistance

Deviation in valve timing

Abnormal compression pressure

No compression in specific cylinder

No compression in all cylinders

Bad compression in specific cylinder

Bad compression in all cylinders

Oil working up or down

Piston ring malfunction

Always on

Always off

Open circuit in drive circuit

Short circuit in drive circuit

Valve stuck open

Valve stuck close

Inferior constituent

Leakage

Clogging

Improper level

i-stop warning light (amber) illuminates

―

i-stop warning light (amber) flashes

―

i-stop indicator light (green) flashes

―

i-stop function does not operate

―

i-stop function operates under no engine-stop conditions

―

Engine does not restart

―

Limited i-stop function operation time

―

Ineffective operation of A/C during engine stop (i-stop system)

―

9^*1

Acceleration malfunction

―

10^*1

Vehicle moves when accelerating from standstill on slope

―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Cooling system						Charging system									Exhaust system	ATX
		Engine coolant passage		Thermostat		Coolant control valve	Cooling fan motor	Battery		Generator			Starter		Glow plug		Catalytic converter	ATF		Automatic transaxle
		Restricted or clogged	Leakage	Always open	Always close	Improper operation	Improper operation	Does not charge	No discharge (deterioration)	Low power generation voltage	No power generation	High power generation	Open/short circuit in drive circuit	Internal malfunction	Always off	Always on	Deterioration, Loss	Oil cooler restriction	Lack of ATF	TCC non-operation	Constant lockup	Abnormal shift point
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	―	―	―	―	―	―	―	X	X	X	―	X	X	―	―	―	―	―	―	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
4	i-stop function does not operate	―	―	―	―	―	―	―	―	―	―	―	―	X	―	―	―	―	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	―	X	X	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	X	X	X	X	―	―	―	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	X	―	―	X
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	X

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		Other													i-stop
		Engine mount	Instrument cluster	Brake	Tire	Vehicle electric devices			A/C compressor	Immobilizer system		Advanced keyless entry system	Climate control unit	Magnetic clutch	i-stop OFF signal malfunction	i-stop OFF switch malfunction	Bonnet latch switch		Door latch switch or liftgate latch switch		False detection of driver-side buckle switch		Instrument cluster malfunction
		Looseness	Improper operation	Drag	Low air pressure	Remote transmitter left in vehicle cabin	Large amount of parasitic draw	Large power consumption	Large mechanical resistance	Improper operation	Unprogrammed remote transmitter	Improper operation	Improper operation	Improper operation	i-stop OFF signal malfunction	i-stop OFF switch malfunction	Stuck open	Stuck close	Stuck open	Stuck close	Stuck off	Stuck on	Instrument cluster malfunction
1	i-stop warning light (amber) illuminates	―	X	―	―	―	―	―	―	―	―	―	―	―	X	X	―	―	―	―	―	―	X
2	i-stop warning light (amber) flashes	―	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	X
3	i-stop indicator light (green) flashes	―	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	X
4	i-stop function does not operate	―	X	―	―	―	X	X	―	X	―	X	X	―	X	―	X	―	X	―	X	―	X
5	i-stop function operates under no engine-stop conditions	―	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―	X	―	X	―	X	X
6	Engine does not restart	―	―	―	―	―	―	―	―	―	―	X	―	―	X	―	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	X	―	―	―	X	―	―	X	―	―	―	―	―	―	―	―
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―	―	―	―	―	―	X	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	X	―	―	―	―	X	―	―	―	―	―	―	―	―	―	―	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		Number of times i-stop function operates exceeds assured operation amount of components	Ambient temperature sensor	Cabin temperature sensor	Solar radiation sensor	Driver-side air mix actuator malfunction	Driver-side air mix actuator position sensor	Steering angle sensor		Defroster switch malfunction	Low power brake unit load	Power brake unit vacuum sensor	Battery management system malfunction	Brake fluid pressure sensor (built-into DSC HU/CM)	M position switch malfunction (ATX)	Low-G (XY) sensor (built-into SAS control module)	TFT sensor (ATX)
			Erratic signal input	Erratic signal input	Erratic signal input	Driver-side air mix actuator malfunction	Erratic signal input	Erratic signal input	Initialization malfunction	Defroster switch malfunction	Low power brake unit load	Erratic signal input	Battery management system malfunction	Brake fluid pressure sensor (built-into DSC HU/CM)	Erratic signal input	Erratic signal input	Erratic signal input
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	X	―	―	―	―	―	X	―	―	―	X	X	X	―	X	X
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―	―	―	―	―	―	X	―	―	―
4	i-stop function does not operate	X	X	X	―	X	X	X	―	X	X	X	X	X	X	X	X
5	i-stop function operates under no engine-stop conditions	―	X	X	―	X	X	X	X	―	X	X	―	X	―	X	X
6	Engine does not restart	―	―	―	―	―	―	X	―	―	―	X	X	―	X	―	―
7	Limited i-stop function operation time	―	―	―	―	X	X	X	X	―	X	X	X	X	X	―	X
8	Ineffective operation of A/C during engine stop (i-stop system)	―	X	X	X	X	X	―	―	―	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	―	―	―	―	―	―	―	―	―	―	―	―	X	―	X	―
10^*1	Vehicle moves when accelerating from standstill on slope	―	―	―	―	―	―	―	―	―	―	―	―	X	―	X	―

*1 :ATX

×: Applicable

—: Not applicable

Troubleshooting item		i-stop
		Electric AT oil pump malfunction (ATX)	DSC HU/CM malfunction	Drive belt wear	Ignition switch input (PCM terminal 2H)	DC-DC converter malfunction	Brake switch No.1 malfunction	Clutch stroke sensor malfunction
		Electric AT oil pump malfunction (ATX)	DSC HU/CM malfunction	Drive belt wear	Stuck on	DC-DC converter malfunction	Brake switch No.1 malfunction	Clutch stroke sensor malfunction
1	i-stop warning light (amber) illuminates	―	―	―	―	―	―	―
2	i-stop warning light (amber) flashes	X	X	X	―	X	―	―
3	i-stop indicator light (green) flashes	―	―	―	―	―	―	―
4	i-stop function does not operate	X	X	X	―	―	―	―
5	i-stop function operates under no engine-stop conditions	―	―	―	―	―	X	―
6	Engine does not restart	―	―	―	―	―	―	―
7	Limited i-stop function operation time	―	―	―	―	―	―	X
8	Ineffective operation of A/C during engine stop (i-stop system)	―	―	―	―	―	―	―
9^*1	Acceleration malfunction	X	X	X	―	―	―	―
10^*1	Vehicle moves when accelerating from standstill on slope	X	X	―	―	X	―	―

*1 :ATX