Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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 | Link |
|---|---|---|
| Engine does not crank (does not start) | Battery | |
| Starter assembly (for 2.0 kW Type) | ||
| Starter assembly (for 2.2 kW Type) | ||
| Starter assembly (for BOSCH Made) | ||
| ST NO. 1 relay | ||
| Park/neutral position switch assembly (for AC60E) | ||
| Park/neutral position switch assembly (for AC60F) | ||
| Clutch start switch | ||
| Entry and start system (for start function) | ||
| VC Output Circuit | ||
| Difficult to start with cold engine | Engine difficult to start or stalling | Click here |
| Starter signal circuit | ||
| Cranking holding function circuit | ||
| Glow control system No. 1 | Click here | |
| Glow control system No. 2 | Click here | |
| Injector assembly | Click here | |
| Compression | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| EDU relay | ||
| Fuel with low cetane number used | - | |
| Fuel frozen | - | |
| Air mixed into fuel pipe | - | |
| No initial combustion (does not start) | VC output circuit | Click here |
| Difficult to start with hot engine | Engine difficult to start or stalling | Click here |
| Starter signal circuit | ||
| Cranking holding function circuit | ||
| Injector assembly | Click here | |
| Fuel filter element assembly | ||
| Compression | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Air mixed into fuel pipe | - | |
| Battery deteriorated | - | |
| Engine stalls soon after starting | Engine immobiliser system | |
| Engine difficult to start or stalling | Click here | |
| Injector assembly | Click here | |
| Fuel filter element assembly | ||
| ECM power source circuit | Click here | |
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Air mixed into fuel pipe | - | |
| Engine stalls (not including the conditions listed above) | Engine difficult to start or stalling | Click here |
| Abnormal initial idling (poor idling) | Rough idling or excessive engine vibration | Click here |
| Injector assembly | Click here | |
| Fuel filter element assembly | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Mass air flow meter deteriorated | - | |
| Fuel with low cetane number used | - | |
| A/C signal circuit and/or generator signal circuit open | - | |
| High engine idling speed | Rough idling or excessive engine vibration | Click here |
| A/C signal circuit | - | |
| Injector assembly | Click here | |
| Starter signal circuit | ||
| Cranking holding function circuit | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Speed sensor circuit open | Click here | |
| Accelerator pedal | ||
| Low engine idling speed (poor idling) | Rough idling or excessive engine vibration | Click here |
| A/C signal circuit | - | |
| Injector assembly | Click here | |
| Compression | ||
| Fuel line (air bleeding) | - | |
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Mass air flow meter deteriorated | - | |
| Rough idling (poor idling) | Rough idling or excessive vibration | Click here |
| Hunting with hot engine (poor idling) | Injector assembly | Click here |
| ECM power source circuit | Click here | |
| Compression | ||
| Fuel line (air bleeding) | - | |
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Hunting with cold engine (poor idling) | Injector assembly | Click here |
| ECM power source circuit | Click here | |
| Compression | ||
| Fuel line (air bleeding) | - | |
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Fuel with low cetane number used | - | |
| Hesitation/poor acceleration (poor driveability) | Lack of power or hesitation | Click here |
| Injector assembly | Click here | |
| Fuel filter element assembly | ||
| Compression | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Accelerator pedal | ||
| Turbocharger system | ||
| Mass air flow meter deteriorated | - | |
| Intake system blockage | - | |
| Brake override system | ||
| Knocking (poor driveability) | Engine knocking or rattling | Click here |
| Turbocharger Noise | ||
| Black smoke emitted (poor driveability) | Black smoke emitted | Click here |
| Injector assembly | Click here | |
| White smoke emitted (poor driveability) | Injector assembly | Click here |
| Fuel filter element assembly | ||
| ECM | Click here | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Low quality fuel | - | |
| White smoke emitted | Click here | |
| Turbocharger oil leak and white smoke | ||
| Surging/hunting (poor driveability) | Injector assembly | Click here |
| ECM | Click here | |
| Mass air flow meter deteriorated | - | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Turbocharger system | ||
| MIL (malfunction indicator lamp) malfunction | MIL Circuit |