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 TABLE
| Symptom | Suspected area | See |
|---|---|---|
| Engine does not crank (Does not start) | 1. Battery | ON-VEHICLE INSPECTION |
| 2. Starter | INSPECTION | |
| 3. Starter relay | ON-VEHICLE INSPECTION | |
| 4. Park / neutral position switch (Automatic transaxle) | ADJUSTMENT | |
| 5. Clutch start switch (Manual transaxle) | ON-VEHICLE INSPECTION | |
| 6. Immobiliser system | HOW TO PROCEED WITH TROUBLESHOOTING | |
| No initial combustion (Does not start) | 1. ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| 2. Crankshaft position sensor | CRANKSHAFT POSITION SENSOR | |
| 3. Camshaft position sensor | CRANKSHAFT POSITION SENSOR | |
| 4. Ignition system | ON-VEHICLE INSPECTION | |
| 5. Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| 6. ECM | TERMINALS OF ECM | |
| 7. VC output circuit | VC OUTPUT CIRCUIT | |
| Engine cranks normally but difficult to start | 1. Fuel pump control circuit | -->FUEL PUMP CONTROL CIRCUIT |
| 2. Compression | 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. Injector | INSPECTION | |
| Difficult to start with warm engine | 1. Injector | INSPECTION |
| 2. Ignition system | ON-VEHICLE INSPECTION | |
| 3. Spark plug | ON-VEHICLE INSPECTION | |
| 4. Fuel pump control circuit | -->FUEL PUMP CONTROL CIRCUIT | |
| High engine idle speed | 1. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. A/C signal circuit | - | |
| 3. ECM power source circuit | -->ECM POWER SOURCE CIRCUIT | |
| Low engine idle speed (Poor idling) | 1. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 2. A/C signal circuit | - | |
| 3. Fuel pump control circuit | -->FUEL PUMP CONTROL CIRCUIT | |
| 4. Air induction system | ON-VEHICLE INSPECTION | |
| 5. PCV hose | ON-VEHICLE INSPECTION | |
| Rough idling | 1. Compression | INSPECTION |
| 2. Spark plug | ON-VEHICLE INSPECTION | |
| 3. Injector | INSPECTION | |
| 4. Ignition system | ON-VEHICLE INSPECTION | |
| 5. Fuel pump control circuit | -->FUEL PUMP CONTROL CIRCUIT | |
| 6. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 7. Air induction system | ON-VEHICLE INSPECTION | |
| 8. PCV hose | ON-VEHICLE INSPECTION | |
| 9. Mass air flow meter | -->MASS AIR FLOW METER | |
| Idle hunting | 1. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH |
| 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. Injector | INSPECTION | |
| 5. Mass air flow meter | -->MASS AIR FLOW METER | |
| 6. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 7. Air induction system | ON-VEHICLE INSPECTION | |
| 8. Compression | 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. Injector | INSPECTION | |
| 5. Mass air flow meter | -->MASS AIR FLOW METER | |
| 6. Variable valve timing system | DTC P0011 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION "A" - TIMING OVER-RETARDED (BANK 1) | |
| 7. Compression | 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 | |
| 5. Variable valve timing system | DTC P0011 CAMSHAFT POSITION "A" - TIMING OVER-ADVANCED OR SYSTEM PERFORMANCE (BANK 1); DTC P0012 CAMSHAFT POSITION "A" - TIMING OVER-RETARDED (BANK 1) | |
| 6. Electronic throttle control system | DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW; DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH | |
| 7. Air induction system | ON-VEHICLE INSPECTION | |
| 8. PCV hose | ON-VEHICLE INSPECTION | |
| 9. Compression | INSPECTION | |
| Engine stalls only during A/C operation | 1. A/C signal circuit | - |
| 2. ECM | -->TERMINALS OF ECM | |
| Unable/difficult to refuel | 1. Refueling valve (canister) | - |