QUICK DIAGNOSTIC CHART [SKYACTIV-X]

id0103hf800600

×: Applicable

—: Not applicable

Troubleshooting item	Starter motor malfunction (mechanical or electrical)	Starter circuit including ignition switch is open	Improper engine oil level	Low or dead battery	Charging system malfunction	Improper engine compression	Improper oil level gauge	Base engine malfunction	Drive plate (ATX) or flywheel (MTX) is seized
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	—	—	—	—	—
Will not crank	×	×	—	×	×	—	—	×	×
Hard to start/long crank/erratic start/erratic crank	×	—	—	—	—	×	—	×	—
Engine stalls-after start/at idle	—	—	—	—	—	×	—	—	—
Cranks normally but will not start	—	—	—	—	—	—	—	—	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	×	—	—	—	×	×	—
Engine runs rough/rolling idle	—	—	—	—	—	×	—	—	—
Fast idle/runs on	—	—	—	—	—	×	—	—	—
Low idle/stalls during deceleration	—	—	—	—	—	×	—	—	—
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	—	—	—	—	×	—	—	—
Lack/loss of power-acceleration/cruise	—	—	—	—	—	×	—	—	—
Knocking/pinging-acceleration/cruise	—	—	—	—	—	×	—	—	—
Poor fuel economy	—	—	—	—	—	×	—	—	—
Emission compliance	—	—	—	—	—	×	—	×	—
High oil consumption/leakage	—	—	—	—	—	×	×	×	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—
Exhaust smoke	—	—	—	—	—	×	—	×	—
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	×	—	—	—	—	—
Sulfuric smell occurs	—	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	×	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Improper tension or damaged drive belts	Improper engine coolant level	Water and anti-freeze mixture is improper	Cooling system malfunction	Inappropriate engine coolant concentration (engine coolant in radiator freezes and engine coolant does not flow)	Foreign matter penetration in engine coolant	Engine or transaxle mounts are improperly installed	Fuel quality	Fuel tank vent system malfunction
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	—	—	—	—	—
Will not crank	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	—	—	—	—	—	—	×	—
Engine stalls-after start/at idle	—	—	—	—	—	—	—	×	—
Cranks normally but will not start	—	—	—	—	—	—	—	×	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	—	—	—	—	—	—	—	×	—
Fast idle/runs on	—	—	—	—	—	—	—	—	—
Low idle/stalls during deceleration	—	—	—	—	—	—	—	—	—
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	—	—	—	—	—	—	×	—
Lack/loss of power-acceleration/cruise	—	—	—	—	—	—	—	×	—
Knocking/pinging-acceleration/cruise	—	—	—	×	—	—	—	×	—
Poor fuel economy	—	×	—	—	—	—	—	—	—
Emission compliance	—	—	—	×	—	—	—	×	—
High oil consumption/leakage	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	×	×	×	×	×	×	—	—	—
Cooling system concerns-runs cold	—	—	—	×	—	—	—	—	—
Exhaust smoke	—	—	—	×	—	—	—	—	—
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—
Engine noise	×	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	×	—	—
Sulfuric smell occurs	—	—	—	—	—	—	—	—	×
Spark plug condition	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Improper engine oil viscosity	Improper valve timing	Oil leakage	Improper oil or fluid level	Coolant leakage	Electric variable valve timing system malfunction	Engine overheating	Air cleaner element clogged or restricted	Air leakage from intake-air system (loose tubes, cracks, gaskets breakage)
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	—	×	—	—	—
Will not crank	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	×	—	—	—	×	—	×	×
Engine stalls-after start/at idle	—	×	—	—	—	×	×	—	×
Cranks normally but will not start	—	×	—	—	—	×	×	×	×
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	×	—	×	×	—	—	—	—	—
Engine runs rough/rolling idle	—	×	—	—	—	×	×	—	×
Fast idle/runs on	—	—	—	—	—	—	—	—	×
Low idle/stalls during deceleration	—	—	—	—	—	×	—	—	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	×	—	—	—	×	×	×	—
Lack/loss of power-acceleration/cruise	—	×	—	—	—	×	×	×	×
Knocking/pinging-acceleration/cruise	—	—	—	—	—	—	×	—	×
Poor fuel economy	×	—	—	—	—	—	—	—	—
Emission compliance	—	×	—	—	—	—	×	×	×
High oil consumption/leakage	×	—	×	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	×	—	—	—	—
Exhaust smoke	—	×	×	—	×	—	—	×	×
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—
Engine noise	—	—	—	×	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	—	—	—
Sulfuric smell occurs	—	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Air suction in intake-air system	Intake-air system restriction	Drive-by-wire control system improper operation	Drive-by-wire control system operates with brake override system	Throttle body malfunction	Purge solenoid valve malfunction	Ignition coil malfunction (e.g. open, short or cracks)	Initial ignition timing misadjustment (CKP and pulse wheel misadjustment)	Spark plug malfunction
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	×	—	—	—	—	—	—
Will not crank	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	×	×	×	—	×	×	×	×	×
Engine stalls-after start/at idle	×	×	×	—	—	×	×	—	—
Cranks normally but will not start	×	×	×	—	—	×	×	—	×
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	—	×	×	—	—	×	×	—	×
Fast idle/runs on	×	—	×	—	×	—	—	—	—
Low idle/stalls during deceleration	×	×	×	—	×	×	—	—	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	×	—	×	—	×	×	—	—	×
Lack/loss of power-acceleration/cruise	×	×	×	×	×	×	×	—	×
Knocking/pinging-acceleration/cruise	—	×	×	—	—	—	×	—	×
Poor fuel economy	—	—	—	—	—	—	—	—	×
Emission compliance	×	×	×	—	×	×	—	—	—
High oil consumption/leakage	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—
Exhaust smoke	—	×	—	—	—	—	×	—	×
Fuel odor (in engine compartment)	—	—	—	—	—	×	—	—	—
Engine noise	×	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	×	—	—	—	—	—	—	—
Sulfuric smell occurs	×	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	×
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Fuel pump (low-pressure side) malfunction (mechanically or electrically)	Pressure regulator (built-into fuel pump unit at fuel tank) malfunction	Inadequate fuel pressure (high-pressure side)	Inadequate fuel pressure (low-pressure side)	Fuel line restricted or clogged	Fuel injector malfunction (inoperative)	Fuel filters restricted or clogged
Blown fuses	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	—	×	—
Will not crank	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	×	×	×	×	×	×	×
Engine stalls-after start/at idle	×	—	×	×	×	×	×
Cranks normally but will not start	×	—	×	×	×	×	×
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—
Engine runs rough/rolling idle	×	—	×	×	×	×	×
Fast idle/runs on	—	—	—	—	—	×	—
Low idle/stalls during deceleration	×	—	×	×	×	×	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	×	—	×	×	×	×	×
Lack/loss of power-acceleration/cruise	×	—	×	×	×	×	×
Knocking/pinging-acceleration/cruise	—	—	×	×	—	×	—
Poor fuel economy	—	—	—	—	—	—	—
Emission compliance	—	—	×	×	×	×	—
High oil consumption/leakage	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—
Exhaust smoke	—	—	×	×	×	×	×
Fuel odor (in engine compartment)	—	—	×	×	×	×	—
Engine noise	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	—
Sulfuric smell occurs	—	—	×	×	×	—	×
Spark plug condition	—	—	—	—	—	×	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Relief valve malfunction (built-into high pressure fuel pump)	Spill valve control solenoid valve malfunction (built-into high pressure fuel pump)	Fuel leakage at fuel line	High pressure fuel pump malfunction	Incorrect fuel injection timing or amount	Improper air/fuel ratio mixture control	Catalytic converter malfunction	Exhaust gas leakage	GPF pressure sensor malfunction
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	×	—	—	—	×	—	—	×
Will not crank	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	×	×	×	×	×	×	—	×	—
Engine stalls-after start/at idle	×	×	×	×	×	×	—	×	—
Cranks normally but will not start	×	×	×	×	×	×	—	×	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	×	×	×	×	—	×	—	×	—
Fast idle/runs on	—	×	—	—	—	×	—	—	—
Low idle/stalls during deceleration	×	×	×	×	×	×	—	—	—
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	×	×	×	×	×	×	—	×	—
Lack/loss of power-acceleration/cruise	×	×	×	×	×	×	×	×	—
Knocking/pinging-acceleration/cruise	—	×	—	×	—	—	—	×	—
Poor fuel economy	—	—	—	—	—	—	—	—	—
Emission compliance	×	×	×	×	×	×	×	×	×
High oil consumption/leakage	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—
Exhaust smoke	×	×	—	×	×	—	×	×	×
Fuel odor (in engine compartment)	—	—	×	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	×	—
Vibration concerns (engine)	—	—	—	—	—	—	—	—	—
Sulfuric smell occurs	×	×	×	×	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Exhaust system or catalytic converter restriction	PCV valve malfunction	Charcoal canister malfunction	Constant voltage supply circuit malfunction	Main relay malfunction (mechanically or electrically)	No battery power supply to PCM	Poor PCM ground or vehicle ground (open)	Electrical connector disconnection	ECT sensor No.1 or related circuit malfunction	ECT sensor No.2 or related circuit malfunction	Cylinder pressure sensor or related circuit malfunction
Blown fuses	—	—	—	—	—	—	—	—	—	—
Check engine light illuminates	×	—	—	—	—	—	—	—	—	×	×
Will not crank	—	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	×	—	—	—	—	—	—	—	×
Engine stalls-after start/at idle	—	×	—	—	—	—	—	—	—	×
Cranks normally but will not start	—	×	—	—	—	—	—	—	—	×
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	—	×	—	—	—	—	—	—	—	×	×
Fast idle/runs on	—	—	—	—	—	—	—	—	—	×
Low idle/stalls during deceleration	—	—	—	—	—	—	—	—	—	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	×	—	—	—	—	—	—	—	×
Lack/loss of power-acceleration/cruise	—	×	—	—	—	—	—	—	—	×	×
Knocking/pinging-acceleration/cruise	—	—	—	—	—	—	—	—	—	×	×
Poor fuel economy	—	—	—	—	—	—	—	—	—	—	×
Emission compliance	×	×	×	—	—	—	—	—	—	—
High oil consumption/leakage	—	×	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—	×
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—	×
Exhaust smoke	—	×	—	—	—	—	—	—	—	×
Fuel odor (in engine compartment)	—	—	×	—	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	—	×	—	—
Sulfuric smell occurs	—	×	×	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	×	×
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Brake switch or related circuit malfunction	A/F sensor or HO2S or related circuit malfunction	IAT sensor No.1 (integrated in MAF sensor/ IAT sensor No.1) or related circuit malfunction	IAT sensor No.2 (integrated in MAP sensor/ IAT sensor No.2) or related circuit malfunction	Fuel pressure sensor or related circuit malfunction	MAP sensor or related circuit malfunction	Starter interlock switch malfunction (MTX)	Starter interlock switch or related circuit malfunction (MTX)	Intake CMP sensor damaged (e.g.open or short circuit)	Intake CMP sensor pulse wheel (intake camshaft) damaged	Exhaust CMP sensor damaged (e.g.open or short circuit)	Exhaust CMP sensor pulse wheel (exhaust camshaft) damaged
Blown fuses	—	—	—	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	×	×	—	×	×	—	—	×	—	×	—
Will not crank	—	—	—	—	—	—	×	×	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	×	—	—	×	×	—	—	×	×	×	×
Engine stalls-after start/at idle	—	×	—	—	×	×	—	—	×	×	×	×
Cranks normally but will not start	—	×	—	—	×	—	—	—	×	×	×	×
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	—	×	—	—	×	×	—	—	×	×	×	×
Fast idle/runs on	—	×	—	—	—	—	—	—	—	—	—	—
Low idle/stalls during deceleration	×	×	—	—	×	×	—	—	×	×	×	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	×	×	—	×	×	—	—	×	×	×	×
Lack/loss of power-acceleration/cruise	—	×	×	—	×	×	—	—	×	×	×	×
Knocking/pinging-acceleration/cruise	—	—	×	×	×	×	—	—	×	×	×	×
Poor fuel economy	—	—	—	—	—	—	—	—	—	—	—	—
Emission compliance	—	×	×	—	×	×	—	—	×	×	×	×
High oil consumption/leakage	—	—	—	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—	—	—	—
Exhaust smoke	—	×	×	—	×	×	—	—	—	—	—	—
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	—	—	—	—	—	—
Sulfuric smell occurs	—	—	—	—	×	—	—	—	—	—	—	—
Spark plug condition	—	×	—	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Improper gap between CKP sensor and pulse wheel	CKP sensor damaged (e.g.open or short circuit)	CKP sensor pulse wheel damaged	Neutral sensor No.1 or related circuit malfunction (MTX)	Neutral sensor No.2 or related circuit malfunction (With i-stop system (MTX))	MAF sensor or related circuit malfunction	TP sensor or related circuit malfunction	Improper vehicle speed signal	APP sensor or related circuit malfunction
Blown fuses	—	—	—	—	—	—	—	—	—
Check engine light illuminates	×	×	—	—	—	×	×	×	×
Will not crank	—	—	—	—	—	×	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	—	—	—	—	×	—	—	—
Engine stalls-after start/at idle	—	—	—	—	—	×	—	—	—
Cranks normally but will not start	—	—	—	—	—	×	—	—	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	×	×	×	—	—	×	—	×	×
Fast idle/runs on	—	—	—	×	×	—	—	×	×
Low idle/stalls during deceleration	×	×	×	×	×	×	×	×	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	×	×	×	×	×	×	×	×	×
Lack/loss of power-acceleration/cruise	×	×	×	×	×	×	—	×	×
Knocking/pinging-acceleration/cruise	—	—	—	—	—	×	—	—	×
Poor fuel economy	—	—	—	—	—	—	—	—	—
Emission compliance	×	×	×	—	—	×	×	×	×
High oil consumption/leakage	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—
Exhaust smoke	×	—	—	—	—	—	×	×	×
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	—	—
Vibration concerns (engine)	—	—	—	—	—	—	—	—	—
Sulfuric smell occurs	—	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	×	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Cruise control system operation improperly	A/C system improper operation	Improper refrigerant charging amount	A/C relay (A/C control signal circuit) malfunction	A/C compressor magnetic clutch malfunction	Clutch slippage (MTX)	ATX related parts malfunction (ATX)	Improper ATF level (ATX)	Brake dragging	Loose parts	Improper balance of wheels and tires	Drive line malfunction
Blown fuses	—	—	—	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	—	—	—	—	—	—	—	—
Will not crank	—	—	—	—	—	—	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	—	—	—	—	—	—	—	—	×	—	—
Engine stalls-after start/at idle	—	×	×	×	—	—	—	—	—	×	—	—
Cranks normally but will not start	—	—	—	—	—	—	—	—	—	×	—	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	—	—	—	—	—	—	—	—
Engine runs rough/rolling idle	—	×	×	×	—	—	—	—	—	—	—	×
Fast idle/runs on	×	—	—	×	—	—	—	—	—	—	—	—
Low idle/stalls during deceleration	—	×	—	—	×	—	—	—	—	—	—	×
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	×	—	—	—	×	×	—	—	—	—	×
Lack/loss of power-acceleration/cruise	—	×	—	×	—	×	—	—	×	—	—	×
Knocking/pinging-acceleration/cruise	—	—	—	—	—	—	—	—	—	—	—	—
Poor fuel economy	—	—	—	—	—	×	—	×	×	—	—	—
Emission compliance	—	—	—	—	—	—	—	—	—	—	—	—
High oil consumption/leakage	—	—	—	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	×	×	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—	—	—	—
Exhaust smoke	—	—	—	—	—	—	—	—	—	—	—	—
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—	—	—	×
Engine noise	—	—	—	—	—	—	—	—	—	—	—	×
Vibration concerns (engine)	—	—	—	—	—	—	—	—	—	—	—	×
Sulfuric smell occurs	—	—	—	—	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Suspension malfunction	Immobilizer system operating properly	Immobilizer system or related circuit malfunction	Advanced keyless entry system malfunction	Instrument cluster malfunction	Climate control unit malfunction	Engine oil contamination	Improper tire air pressure	Engine operation time is longer than traveled distance	Amount of fuel injection increases	Active air shutter malfunction
Blown fuses	—	—	—	—	—	—	—	—	—	—	—
Check engine light illuminates	—	—	—	—	×	—	—	—	—	—	—
Will not crank	—	×	×	×	×	—	—	—	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	—	—	—	—	—	—	—	—	—	—
Engine stalls-after start/at idle	—	—	—	—	—	—	—	—	—	—	—
Cranks normally but will not start	—	—	—	—	—	—	—	—	—	—	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	—	—	—	—	×	—	—	—	—	—	—
Engine runs rough/rolling idle	—	—	—	—	—	—	—	—	—	—	—
Fast idle/runs on	—	—	—	—	—	—	—	—	—	—	—
Low idle/stalls during deceleration	—	—	—	—	—	—	—	—	—	—	—
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	—	—	—	—	—	—	—	—	—	—
Lack/loss of power-acceleration/cruise	—	—	—	—	—	—	—	—	—	—	—
Knocking/pinging-acceleration/cruise	—	—	—	—	—	—	—	—	—	—	—
Poor fuel economy	—	—	—	—	—	—	×	×	×	×	—
Emission compliance	—	—	—	—	—	—	—	—	—	—	—
High oil consumption/leakage	—	—	—	—	—	—	—	—	—	—	—
Cooling system concerns-overheating	—	—	—	—	—	—	—	—	—	—	—
Cooling system concerns-runs cold	—	—	—	—	—	—	—	—	—	—	—
Exhaust smoke	—	—	—	—	—	—	—	—	—	—	—
Fuel odor (in engine compartment)	—	—	—	—	—	—	—	—	—	—	—
Engine noise	—	—	—	—	—	—	—	—	—	—	—
Vibration concerns (engine)	×	—	—	—	—	—	—	—	—	—	—
Sulfuric smell occurs	—	—	—	—	—	—	—	—	—	—	—
Spark plug condition	—	—	—	—	—	—	—	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])

×: Applicable

—: Not applicable

Troubleshooting item	Body control module (BCM) malfunction	Multi-information display malfunction	Center display malfunction	Variable displacement control valve malfunction (built-into A/C compressor)
Blown fuses	—	—	—	—
Check engine light illuminates	—	—	—	—
Will not crank	×	—	—	—
Hard to start/long crank/erratic start/erratic crank	—	—	—	—
Engine stalls-after start/at idle	—	—	—	—
Cranks normally but will not start	—	—	—	—
Engine oil warning light illuminated/message related to engine hydraulic pressure malfunction indicated in display	×	—	—	—
Engine runs rough/rolling idle	—	—	—	—
Fast idle/runs on	—	—	—	—
Low idle/stalls during deceleration	—	—	—	—
Engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges	—	—	—	—
Lack/loss of power-acceleration/cruise	—	—	—	—
Knocking/pinging-acceleration/cruise	—	—	—	—
Poor fuel economy	—	—	—	—
Emission compliance	—	—	—	—
High oil consumption/leakage	—	—	—	—
Cooling system concerns-overheating	×	×	×	—
Cooling system concerns-runs cold	×	—	—	—
Exhaust smoke	—	—	—	—
Fuel odor (in engine compartment)	—	—	—	—
Engine noise	—	—	—	—
Vibration concerns (engine)	—	—	—	—
Sulfuric smell occurs	—	—	—	—
Spark plug condition	—	—	—	—
ATX related troubleshooting item	(See SYMPTOM TROUBLESHOOTING ITEM TABLE [ET6A-EL, ET6AX-EL])
i-stop related troubleshooting item	(See SYMPTOM DIAGNOSTIC INDEX [SKYACTIV-X])