Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

SFI SYSTEM

PROBLEM SYMPTOMS CHART

Symptom	Suspected Area	See
Engine does not crank (Does not start)	1. Immobilizer system	HOW TO PROCEED WITH TROUBLESHOOTING
	2. Generator	-
	3. Hybrid system	-
	4. Shift lever position sensor	-
No initial combustion (Does not start)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. Crankshaft position sensor	REMOVAL
	3. VVT sensor (for intake side)	DTC P0340 CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION; DTC P0342 CAMSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR); DTC P0343 CAMSHAFT POSITION SENSOR "A" CIRCUIT HIGH INPUT (BANK 1 OR SINGLE SENSOR); DTC P0345 CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 2); DTC P0347 CAMSHAFT POSITION SENSOR "A" CIRCUIT LOW INPUT (BANK 2); DTC P0348 CAMSHAFT POSITION SENSOR "A" CIRCUIT HIGH INPUT (BANK 2)
	4. VVT sensor (for exhaust side)	DTC P0365 CAMSHAFT POSITION SENSOR "B" CIRCUIT (BANK 1); DTC P0367 CAMSHAFT POSITION SENSOR "B" CIRCUIT LOW INPUT (BANK 1); DTC P0368 CAMSHAFT POSITION SENSOR "B" CIRCUIT HIGH INPUT (BANK 1); DTC P0390 CAMSHAFT POSITION SENSOR "B" CIRCUIT (BANK 2); DTC P0392 CAMSHAFT POSITION SENSOR "B" CIRCUIT LOW INPUT (BANK 2); DTC P0393 CAMSHAFT POSITION SENSOR "B" CIRCUIT HIGH INPUT (BANK 2)
	5. Ignition system	ON-VEHICLE INSPECTION
	6. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	7. ECM	REMOVAL
	8. VC output circuit	VC OUTPUT CIRCUIT
Engine cranks normally but difficult to start	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
Engine cranks normally but difficult to start	2. Compression	ON-VEHICLE INSPECTION
Difficult to start with cold engine	1. Ignition system	ON-VEHICLE INSPECTION
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	4. Fuel injector (for port injection)	INSPECTION
	5. Fuel injector (for direct injection)	INSPECTION
Difficult to start with warm engine	1. Fuel injector (for port injection)	INSPECTION
	2. Fuel injector (for direct injection)	INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Spark plug	ON-VEHICLE INSPECTION
	5. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
High engine idle speed	1. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
High engine idle speed	2. ECM power source circuit	ECM POWER SOURCE CIRCUIT
Low engine idle speed (Poor idling)	1. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Air induction system	ON-VEHICLE INSPECTION
	4. Ventilation hose	-
Rough idling	1. Compression	ON-VEHICLE INSPECTION
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Fuel injector (for port injection)	INSPECTION
	4. Fuel injector (for direct injection)	INSPECTION
	5. Ignition system	ON-VEHICLE INSPECTION
	6. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	7. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
	8. Air induction system	ON-VEHICLE INSPECTION
	9. Ventilation hose	-
	10. Mass air flow meter	ON-VEHICLE INSPECTION
Idle hunting	1. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
	2. Air Induction system	ON-VEHICLE INSPECTION
	3. ECM power source circuit	ECM POWER SOURCE CIRCUIT
Hesitation/Poor acceleration	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Fuel injector (for port injection)	INSPECTION
	5. Fuel injector (for direct injection)	INSPECTION
	6. Mass air flow meter	ON-VEHICLE INSPECTION
	7. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
	8. Air induction system	ON-VEHICLE INSPECTION
	9. Compression	ON-VEHICLE INSPECTION
Surging (Poor driveability)	1. Spark plug	ON-VEHICLE INSPECTION
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Fuel injector (for port injection)	INSPECTION
	5. Fuel injector (for direct injection)	INSPECTION
	6. Mass air flow meter	ON-VEHICLE INSPECTION
	7. Variable valve timing system	DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1); DTC P0020 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 2)
	8. Compression	ON-VEHICLE INSPECTION
Engine stalls soon after starting	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Fuel injector (for port injection)	INSPECTION
	5. Fuel injector (for direct injection)	INSPECTION
	6. Variable valve timing system	DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1); DTC P0020 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 2)
	7. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT MALFUNCTION; DTC P0122 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT LOW INPUT; DTC P0123 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT HIGH INPUT; DTC P0220 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT; DTC P0222 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT LOW INPUT; DTC P0223 THROTTLE / PEDAL POSITION SENSOR / SWITCH "B" CIRCUIT HIGH INPUT; DTC P2135 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" / "B" VOLTAGE CORRELATION
	8. Air induction system	ON-VEHICLE INSPECTION
	9. Ventilation hose	-
	10. Compression	ON-VEHICLE INSPECTION
Unable/difficult to refuel	1. Refueling valve (canister)	-