6. Check Fuel Level Sensor Input Signal Circuit For Open And Short
WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect ECM harness connector.
- Check harness continuity between the following;
ECM terminal 119 and "fuel level sensor unit and fuel pump" terminal 5,
ECM terminal 107 and "fuel level sensor unit and fuel pump" terminal 6.
Refer to Wiring Diagram.
- Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG
OK : GO TO 8.
NG : GO TO 7.