 1.CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.
Is the inspection result normal?
YES >>GO TO 2. NO >>Repair or replace ground connection.
 2.CHECK DTC WITH “COMBINATION METER”
 3.CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect “fuel level sensor unit and fuel pump” harness connector.
- Turn ignition switch ON.
- Check the voltage between “fuel level sensor unit and fuel pump (main)” harness connector and ground.
Fuel level sensor unit and fuel pump (main)
| Ground
| Voltage (V)
| Connector
| Terminal
| B225
| 1
| Ground
| Approx. 5
|
Is the inspection result normal?
YES >>GO TO 5. NO >>GO TO 4.
 4.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors F103, M116
- Harness connectors B201, M117
- Harness for open or short between ECM and “fuel level sensor unit and fuel pump (main)”
>>Repair open circuit, short to ground or short to power in harness or connector.
 5.CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect “combination meter” harness connector.
- Check the continuity between “fuel level sensor unit and fuel pump (main)” harness connector and “combination meter” harness connector.
Fuel level sensor unit and fuel pump (main)
| Combination meter
| Continuity
| Connector
| Terminal
| Connector
| Terminal
| B225
| 3
| M53
| 18
| Existed
|
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >>GO TO 7. NO >>GO TO 6.
 6.DETECT MALFUNCTIONING PART
Check the following. - Harness connectors B201, M117
- Harness for open or short between “fuel level sensor unit and fuel pump (main)” and “combination meter”
>>Repair open circuit, short to ground or short to power in harness or connector.
 7.CHECK FUEL TANK TEMPERATURE SENSOR
 8.CHECK INTERMITTENT INCIDENT
|