QUICK DIAGNOSTIC CHART [SKYACTIV-D]

id1103sc000400

×: Applicable

—: Not applicable

Troubleshooting item	Intake-air system		Exhaust system						Fuel system
	Intake shutter valve		LP-EGR control valve	HP-EGR control valve	EGR cooler		EGR pipe	Diesel particulate filter	Fuel line
	Does not fully close (Does not conform to target value)	Clogging, sticking	Improper operation	Improper operation	Leakage (gas)	Clogging	Clogging	Loss	Leakage	Clogging
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)	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Fuel system
	Fuel filter		Sedimentor switch		Fuel warmer	Jet pump (AWD)	Supply pump	Suction control valve		Fuel pressure relief valve
	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
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)	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	×	—	—	—	—	×
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—

* :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
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)	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	×	×	×	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—

* :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
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)	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	×	×	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—

* :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	Engine speed signal	False signal output (no noise, pulse)	Open or short circuit in signal circuit
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)	—	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—	—

* :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
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)	—	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Control system (PCM input signal)
	MAP sensor			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
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)	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—

* :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
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)	—	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—	—

* :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 temperature sensor No.4			Exhaust gas pressure 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
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)	—	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Control system (PCM input signal)
	BARO sensor (built-into PCM)			A/F sensor			Regulating valve position sensor		LP-EGR control valve position sensor		HP-EGR control 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	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
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)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Control system (PCM input signal)
	Refrigerant pressure sensor			Check connector	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
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)	×	×	×	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Control system (PCM input signal)				Control system (PCM output signal)
	Neutral sensor (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
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)	—	—	—	—	—	—	—	—	×	×	×
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—

* :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
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)	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—

* :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	High 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
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)	—	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	×	×	—	×	—	×	×	×	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Mechanical									Lubrication system
	OCV		Blow-by heater		Engine oil solenoid valve				Belts for engine accessories	Engine oil
	Always on	Always off	Always on	Always off	Open circuit in drive circuit	Short circuit in drive circuit	Valve stuck open	Valve stuck close	Slippage	Inferior constituent
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)	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Lubrication system			Cooling system					Charging system
	Engine oil			Engine coolant passage		Thermostat		Cooling fan motor	Battery
	Leakage	Clogging	Improper level	Restricted or clogged	Leakage	Always open	Always close	Improper operation	Does not charge	No discharge (deterioration)
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)	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Charging system							Emission system	ATX
	Generator			Starter		Glow plug		Catalytic converter (diesel particulate filter)	ATF
	Low power generation voltage	No power generation	High power generation	Open/short circuit in drive circuit	Internal malfunction	Always off	Always on	Deterioration or loss	Oil cooler restriction	Lack of ATF
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)	—	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—	×
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	ATX			Other
	Automatic transaxle			Engine mount	Brake	Tire	Vehicle electric devices
	TCC non-operation	Constant lockup	Abnormal shift point	Looseness	Drag	Low air pressure	Remote transmitter left in vehicle cabin	Large amount of parasitic draw	Large power consumption
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)	—	—	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	×	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	Other						i-stop
	A/C compressor	Immobilizer system		Advanced keyless entry system	Climate control unit	Magnetic clutch	i-stop OFF signal malfunction	Hood latch switch		Door latch switch or trunk lid latch switch (4SD)/liftgate latch switch (5HB)
	Large mechanical resistance	Improper operation	Unprogrammed remote transmitter	Improper operation	Improper operation	Improper operation	i-stop OFF signal malfunction	Stuck open	Stuck close	Stuck open	Stuck close
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)	—	—	—	—	—	×	—	—	—	—	—
Acceleration malfunction^*	×	—	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—	—	—

* :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	Passenger compartment 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
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)	—	—	—	×	×	×	×	×	×
Acceleration malfunction^*	—	—	—	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	—	—	—	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	i-stop
	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)
	Erratic signal input	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
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)	—	—	—	—	—	—	—
Acceleration malfunction^*	—	—	—	—	—	×	—
Vehicle moves when accelerating from standstill on slope^*	—	—	—	—	—	×	—

* :ATX

×: Applicable

—: Not applicable

Troubleshooting item	i-stop
	Low-G 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)	Dash-electrical supply unit malfunction	Body control module (BCM) malfunction	EPS control module malfunction	Clutch stroke sensor malfunction	DC-DC converter system error
	Erratic signal input	Erratic signal input	Electric AT oil pump malfunction (ATX)	DSC HU/CM malfunction	Drive belt wear	Stuck on	Dash-electrical supply unit malfunction	Body control module (BCM) malfunction	EPS control module malfunction	Clutch stroke sensor malfunction	DC-DC converter system error
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)	—	—	—	—	—	—	×	×	—	—	—
Acceleration malfunction^*	×	—	×	×	×	—	—	—	—	—	—
Vehicle moves when accelerating from standstill on slope^*	×	—	×	×	—	—	—	—	—	—	×

* :ATX