Diagnostic Procedure
WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For circuit wiring diagram, see Fig 1
. For connector identification and locations, see CONNECTOR IDENTIFICATION
.
- Check Ground Circuit
Turn ignition off. Disconnect ECM harness connector. See Figure . Check continuity between body ground and ECM harness connector terminal No. 90. See Fig 1 . Continuity should exist. Also, check harness for short to power. If problem is found, go to next step. If problem is not found, go to step 3 . - Detect Malfunctioning Part
Check the following:- Harness connectors F26 and M58.
- Harness connectors M16 and B3.
- Harness for open or short between ECM and body ground.
Repair as necessary. Perform DTC CONFIRMATION TEST to verify repair.
- Check Fuel Level Sensor
Check fuel level sensor as shown in illustration. See Figure . If fuel level sensor is okay, go to next step. If fuel level sensor is not okay, replace fuel level sensor. Perform DTC CONFIRMATION TEST to verify repair. - Check For Intermittent
Check for intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. Perform DTC CONFIRMATION TEST to verify repair.