Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem. 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.

SFI SYSTEM

PROBLEM SYMPTOMS TABLE

Symptom	Suspected area	See
Engine does not crank (Does not start)	1. Check push-start function Initialization	HOW TO PROCEED WITH TROUBLESHOOTING
	2. Immobilizer System	REGISTRATION
	3. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	4. VC output circuit	VC OUTPUT CIRCUIT
	5. Cranking holding function circuit	CRANKING HOLDING FUNCTION CIRCUIT
	6. Starter	STARTER
No initial combustion (Does not start)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. ECM	TERMINALS OF ECM
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	ENGINE
Difficult to start with cold engine	1. Cranking holding function circuit	CRANKING HOLDING FUNCTION CIRCUIT
	2. Ignition system	IGNITION SYSTEM
	3. Spark plug	IGNITION SYSTEM
	4. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	5. Injector	FUEL INJECTOR
Difficult to start with worm engine	1. Cranking holding function circuit	CRANKING HOLDING FUNCTION CIRCUIT
	2. Injector	FUEL INJECTOR
	3. Ignition system	IGNITION SYSTEM
	4. Spark plug	IGNITION SYSTEM
	5. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
High engine idle speed (Poor idling)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. A/C signal circuit (compressor circuit)	-
	3. 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
	4. Air induction system	-
	5. PCV hose	-
Low engine idle speed (Poor idling)	1. A/C signal circuit (compressor circuit)	-
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Electronic throttle control system	THROTTLE BODY
	4. Air induction system	-
	5. PCV hose	-
Rough idling (Poor idling)	1. Compression	THROTTLE BODY
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Electronic throttle control system	THROTTLE BODY
	4. Air induction system	-
	5. PCV hose	-
Hunting (Poor idling)	1. ECM power source circuit	ECM POWER SOURCE CIRCUIT
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Spark plug	IGNITION SYSTEM
	4. Ignition system	IGNITION SYSTEM
	5. Injector	FUEL INJECTOR
	6. Electronic throttle control system	THROTTLE BODY
	7. Air induction system	-
	8. PCV hose	-
Hesitation/ Poor acceleration (Poor driveability)	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	IGNITION SYSTEM
	3. Ignition system	IGNITION SYSTEM
	4. Injector	FUEL INJECTOR
Surging (Poor driveability)	1. Spark plug	IGNITION SYSTEM
	2. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	3. Ignition system	IGNITION SYSTEM
	4. Injector	FUEL INJECTOR
Engine stalls soon after starting	1. Fuel pump control circuit	FUEL PUMP CONTROL CIRCUIT
	2. Spark plug	IGNITION SYSTEM
	3. Ignition system	IGNITION SYSTEM
	4. Injector	FUEL INJECTOR
	5. Vacuum sensor circuit	-
Engine stalls during A/C operation	1. A/C signal circuit (Compressor circuit)	-
	2. ECM	TERMINALS OF ECM
	3. Cold start injector	COLD START INJECTOR
Unable/difficult refuel	Refueling valve (canister)	-