Diagnosis Procedure
- CHECK DTC WITH COMBINATION METER
Refer to "CONSULT FUNCTION ".
Is the inspection result normal?
YES: GO TO 2.
NO: Proceed to "COMPONENT FUNCTION CHECK ".
- CHECK FUEL TANK TEMPERATURE (FTT) SENSOR POWER SUPPLY
- 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 harness connector and ground.
+ - Voltage (Approx.) Fuel level sensor unit and fuel pump Connector Terminal B46 4 Ground 5 V Is the inspection result normal?
YES: GO TO 4.
NO: GO TO 3.
- CHECK FUEL TANK TEMPERATURE (FTT) SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between fuel level sensor unit and fuel pump harness connector and ECM harness connector.
+ - Continuity Fuel level sensor unit and fuel pump ECM Connector Terminal Connector Terminal B46 4 F26 84 Existed - Also check harness for short to ground and to power.
Is the inspection result normal?
YES: Perform the trouble diagnosis for power supply circuit.
NO: Repair or replace error-detected parts.
- CHECK FUEL TANK TEMPERATURE (FTT) SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect combination meter harness connector.
- Check the continuity between fuel level sensor unit and fuel pump harness connector and combination meter harness connector.
+ - Continuity Fuel level sensor unit and fuel pump Combination meter Connector Terminal Connector Terminal B46 5 M34 24 Existed - Also check harness for short to power.
Is the inspection result normal?
YES: GO TO 5.
NO: Repair or replace error-detected parts.
- CHECK FUEL TANK TEMPERATURE (FTT) SENSOR
Check the FTT sensor. Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".
NO: Replace "fuel level sensor unit and fuel pump". Refer to "2WD: EXPLODED VIEW " (2WD), "AWD: EXPLODED VIEW " (AWD).