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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Engine does not crank (does not start) | Battery | - |
| Starter assembly | ||
| Starter signal circuit (w/o Entry and Start System) | ||
| Entry and start system (for start function) (w/ Entry and Start System) | ||
| Immobiliser system (w/ Entry and Start System) | ||
| Difficult to start with cold engine | Battery deteriorated | - |
| Injector assembly | ||
| Fuel filter | - | |
| Compression | ||
| Fuel supply pump assembly | ||
| Pressure Discharge Valve | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Low fuel tank level | - | |
| Fuel line (air bleeding) | ||
| Fuel with low cetane number used | - | |
| Fuel frozen | - | |
| ECM | - | |
| Difficult to start with hot engine | Injector assembly | |
| Fuel filter assembly | - | |
| Compression | ||
| Fuel supply pump assembly | ||
| Pressure Discharge Valve | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Low fuel tank level | - | |
| Fuel line (air bleeding) | ||
| Battery deteriorated | - | |
| ECM | - | |
| Engine stalls soon after starting | Fuel filter assembly | - |
| Injector assembly | ||
| ECM power source circuit | ||
| Fuel supply pump assembly | ||
| Pressure Discharge Valve | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Fuel line (air bleeding) | ||
| ECM | - | |
| Abnormal initial idling (poor idling) | Fuel filter assembly | - |
| Injector assembly | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Engine coolant temperature sensor | ||
| Fuel with low cetane number used | - | |
| ECM | - | |
| High engine idling speed (poor idling) | Injector assembly | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Engine coolant temperature sensor | ||
| ECM | - | |
| Low engine idling speed (poor idling) | Injector assembly | |
| EGR valve assembly | ||
| Compression | ||
| Fuel line (air bleeding) | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Engine coolant temperature sensor | ||
| ECM | - | |
| Hunting with hot engine (poor idling) | Injector assembly | |
| ECM power source circuit | ||
| Compression | ||
| Fuel line (air bleeding) | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Engine coolant temperature sensor | ||
| ECM | - | |
| Hunting with cold engine (poor idling) | Injector assembly | |
| ECM power source circuit | ||
| Compression | ||
| Fuel line (air bleeding) | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Engine coolant temperature sensor | ||
| Fuel with low cetane number used | - | |
| ECM | - | |
| Hesitation/Poor acceleration (poor driveability) | Injector assembly | |
| Fuel filter assembly | - | |
| Nozzle leakage pipe assembly | - | |
| EGR valve assembly | ||
| Compression | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Turbocharger sub-assembly | ||
| Turbo pressure sensor assembly | ||
| ECM | - | |
| Black smoke emitted (poor driveability) | Injector assembly | |
| EGR valve assembly | ||
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Mass air flow meter | ||
| Turbo pressure sensor assembly | ||
| ECM | - | |
| White smoke emitted (poor driveability) | EGR valve assembly | |
| Injector assembly | ||
| Fuel filter assembly | - | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Diesel throttle body assembly | ||
| Turbocharger sub-assembly | ||
| ECM | - | |
| Surging/Hunting (poor driveability) | Injector assembly | |
| Fuel supply pump assembly | ||
| Fuel pressure sensor | ||
| Fuel filter assembly | - | |
| Turbocharger sub-assembly | ||
| Vehicle speed sensor | ||
| ECM | - |