|
Symptom | Suspected Area |
Link |
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Engine does not crank (Does not start) |
Battery |
 |
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ST relay |
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Starter assembly |
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Starter signal circuit |
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Smart key system (for start function) |
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VC output circuit (ECM 5 V output) |
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Park/neutral position switch assembly |
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No initial combustion (Does not start) |
Immobiliser system |
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ECM power source circuit |
|
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VC output circuit (ECM 5 V output) |
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Ignition system |
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Fuel pump control circuit |
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Fuel injector assembly (for port injection) |
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Fuel injector assembly (for direct injection) |
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Crankshaft position sensor |
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Intake system |
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Valve timing |
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|
No. 1 valve rocker arm sub-assembly* |
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Engine cranks normally but difficult to start |
ECM power source circuit |
|
|
Flow chart [Engine difficult to start] |
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Throttle body with motor assembly |
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Fuel pump assembly (for high pressure side) |
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Fuel pump (for low pressure side) |
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Engine coolant temperature sensor |
|
|
Fuel pump control circuit |
|
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Ignition system |
|
|
Spark plug |
|
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Compression |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Crankshaft position sensor |
|
|
Intake system |
|
|
Valve timing |
|
|
No. 1 valve rocker arm sub-assembly* |
|
|
Incomplete intermittent combustion occurs (Does not start) |
Fuel pump control circuit |
|
|
Ignition system |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Crankshaft position sensor |
|
|
Intake system |
|
|
Valve timing |
|
|
High engine speed | Throttle body with motor assembly |
|
|
ECM power source circuit |
|
|
PCV hose |
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| PCV system |
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| Low engine speed (Poor idle) |
Fuel pump control circuit |
|
|
Throttle body with motor assembly |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Fuel pump assembly (for high pressure side) |
|
|
PCV hose |
|
|
PCV system |
|
|
Intake system |
|
|
Rough idle | Flow chart [Rough idling] |
|
|
Throttle body with motor assembly |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Fuel pump assembly (for high pressure side) |
|
|
Ignition system |
|
|
Compression |
|
|
Fuel pump control circuit |
|
|
Spark plug |
|
|
Intake system |
|
|
Valve timing |
|
|
No. 1 valve rocker arm sub-assembly* |
|
|
Hunting (Poor idle) | Throttle body with motor assembly |
|
|
ECM power source circuit |
|
|
Fuel pump control circuit |
|
|
Spark plug |
|
|
Intake system |
|
| Drive start control |
|
|
Hesitation/Poor acceleration (Poor driveability) |
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Fuel pump control circuit |
|
|
Fuel pump assembly (for high pressure side) |
|
|
Ignition system |
|
|
Spark plug |
|
|
Intake system |
|
|
Valve timing |
|
|
No. 1 valve rocker arm sub-assembly* |
|
|
Brake override system |
|
|
Drive start control |
|
|
Lack of power | Flow chart [Lack of power] |
|
|
Surging (Poor driveability) |
Fuel pump control circuit |
|
|
Spark plug |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
No. 1 valve rocker arm sub-assembly* |
|
|
Engine stalls soon after starting |
Flow chart [Engine stalls] |
|
|
Fuel pump control circuit |
|
|
Throttle body with motor assembly |
|
|
Crankshaft position sensor |
|
|
Ignition system |
|
|
Fuel pump assembly (for high pressure side) |
|
|
Intake system |
|
|
Valve timing |
|
|
Engine stalls soon after slow down |
Flow chart [Engine stalls] |
|
|
Fuel injector assembly (for port injection) |
|
|
Fuel injector assembly (for direct injection) |
|
|
Throttle body with motor assembly |
|
|
ECM |
|
|
Crankshaft position sensor |
|
|
Ignition system |
|
|
MIL (Malfunction Indicator Lamp) malfunction |
MIL Circuit |
|
|
Meter/Gauge system |
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|
Unable/difficult to refuel |
Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.) |
- |
| Drive mode does not change |
Drive mode switch circuit |
|
|
Engine vibrates frequently when idling (Active control engine mount system) |
Active control engine mount circuit |
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