Tech Tips
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Engine does not crank (Does not start) | Entry and start system | |
| Immobiliser system | ||
| ECM power source circuit | ||
| VC output circuit | ||
| Cranking holding function circuit | ||
| Starter | ||
| No initial combustion (Does not start) | ECM power source circuit | |
| VC output circuit | ||
| Fuel pump control circuit | ||
| ECM | ||
| Engine cranks normally but difficult to start | Fuel pump control circuit | |
| Compression | ||
| Difficult to start with cold engine | Cranking holding function circuit | |
| Ignition system | ||
| Spark plug | ||
| Fuel pump control circuit | ||
| Fuel injector | ||
| Difficult to start with warm engine | Cranking holding function circuit | |
| Fuel injector | ||
| Ignition system | ||
| Spark plug | ||
| Fuel pump control circuit | ||
| High engine idle speed (Poor idling) | ECM power source circuit | |
| A/C signal circuit (compressor circuit) | ||
| Electronic throttle control system | ||
| Air induction system | ||
| Ventilation hose | ||
| Low engine idle speed (Poor idling) | A/C signal circuit (compressor circuit) | |
| Fuel pump control circuit | ||
| Electronic throttle control system | ||
| Air induction system | ||
| Ventilation hose | ||
| Rough idling (Poor idling) | Compression | |
| Fuel pump control circuit | ||
| Electronic throttle control system | ||
| Air induction system | ||
| Ventilation hose | ||
| Hunting (Poor idling) | ECM power source circuit | |
| Fuel pump control circuit | ||
| Spark plug | ||
| Ignition system | ||
| Fuel injector | ||
| Electronic throttle control system | ||
| Air induction system | ||
| Ventilation hose | ||
| Hesitation/ Poor acceleration (Poor driveability) | Fuel pump control circuit | |
| Spark plug | ||
| Ignition system | ||
| Fuel injector | ||
| Brake override system | ||
| Surging (Poor driveability) | Spark plug | |
| Fuel pump control circuit | ||
| Ignition system | ||
| Fuel injector | ||
| Engine stalls soon after starting | Fuel pump control circuit | |
| Spark plug | ||
| Ignition system | ||
| Fuel injector | ||
| Engine stalls during A/C operation | A/C signal circuit (compressor circuit) | |
| ECM | ||
| Unable/difficult to refuel | Refueling valve (canister) | - |