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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.

SYMPTOM CHART

Symptom Suspected area See
Engine does not crank (Does not start) 1. Immobilizer system SYSTEM DESCRIPTION
2. Starter INSPECTION
3. STARTER relay INSPECTION
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. VC output circuit VC OUTPUT CIRCUIT 
4. ECM ECM 
Engine cranks normally but difficult to start 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. Compression ON-VEHICLE INSPECTION
Difficult to start with cold engine 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
Difficult to start with warm engine 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 idling speed (Poor idling) 1. A/C signal circuit (compressor circuit) SYSTEM DIAGRAM
2. ECM power source circuit ECM POWER SOURCE CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system ON-VEHICLE INSPECTION
5. PCV hose INSPECTION
Low engine idling speed (Poor idling) 1. A/C signal circuit (compressor circuit) SYSTEM DIAGRAM
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system ON-VEHICLE INSPECTION
5. PCV hose INSPECTION
Rough idling (Poor idling) 1. Compression ON-VEHICLE INSPECTION
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system ON-VEHICLE INSPECTION
5. PCV hose INSPECTION
6. Mass air flow meter MASS AIR FLOW METER 
Hunting (Poor 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 THROTTLE BODY 
7. Air induction system ON-VEHICLE INSPECTION
8. PCV hose INSPECTION
Hesitation/Poor acceleration (Poor driveability) 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. A/T faulty(1) HOW TO PROCEED WITH TROUBLESHOOTING
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system ON-VEHICLE INSPECTION
5. Injector INSPECTION
6. Mass air flow meter MASS AIR FLOW METER 
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
5. Mass air flow meter MASS AIR FLOW METER 
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) SYSTEM DIAGRAM
2. ECM ECM 
Unable/difficult to refuel 1. Refueling valve (canister) INSPECTION
(1) Automatic Transmission models only