Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential cases 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.

PROBLEM SYMPTOMS CHART

Symptom	Suspected Area	See
Engine does not crank (does not start)	1. Starter	INSPECTION
	2. STARTER relay	STARTER RELAY
	3. Engine Switch	INSPECTION
No initial combustion (does not start)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. VC output circuit	VC OUTPUT CIRCUIT
	3. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	4. ECM	TERMINALS OF ECM
Engine cranks normally (difficult to start)	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
Engine cranks normally (difficult to start)	2. Compression	ENGINE
Cold engine (difficult to start)	1. Starter signal circuit	DTC P0617 STARTER RELAY CIRCUIT HIGH
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Spark plug	ON-VEHICLE INSPECTION
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Injector	INSPECTION
Hot engine (difficult to start)	1. Starter signal circuit	DTC P0617 STARTER RELAY CIRCUIT HIGH
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Spark plug	ON-VEHICLE INSPECTION
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Injector	INSPECTION
High engine idle speed	1. A/C signal circuit (compressor circuit)	AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
	2. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	3. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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
	4. Air induction system	IACV CONTROL CIRCUIT
	5. PCV hose	ON-VEHICLE INSPECTION
Low engine idle speed	1. A/C signal circuit (compressor circuit)	AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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
	4. Air induction system	IACV CONTROL CIRCUIT
	5. PCV hose	ON-VEHICLE INSPECTION
Rough idling	1. Compression	ENGINE
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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
	4. Air induction system	IACV CONTROL CIRCUIT
	5. PCV hose	ON-VEHICLE INSPECTION
Hunting (when idling)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Spark plug	ON-VEHICLE INSPECTION
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Injector	INSPECTION
	6. Electronic throttle control system	DTC P0120 THROTTLE / PEDAL POSITION SENSOR / SWITCH "A" CIRCUIT; 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
	7. Air induction system	IACV CONTROL CIRCUIT
	8. PCV hose	ON-VEHICLE INSPECTION
Hesitation/Poor acceleration (poor driveability)	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. A/T faulty	PROBLEM SYMPTOMS TABLE
	3. Spark plug	ON-VEHICLE INSPECTION
	4. Ignition system	ON-VEHICLE INSPECTION
	5. Injector	INSPECTION
Surging (poor driveability)	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	ON-VEHICLE INSPECTION
	3. Ignition system	ON-VEHICLE INSPECTION
	4. Injector	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. Injector	INSPECTION
Engine stalls during A/C operation	1. A/C signal circuit (compressor circuit)	AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT
Engine stalls during A/C operation	2. ECM	TERMINALS OF ECM
Unable/difficult to refuel	1. Refueling valve (canister)	ON-VEHICLE INSPECTION