Possible Causes
WARNING: This page is about a different car, the 2003 Mazda B4000, 2003 Mazda B3000, and 2003 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- CASE GND circuit open.
- CASE GND shorted to VPWR.
- Damaged fuel gauge.
- Damaged instrument cluster.
- Damaged PCM.
- Empty fuel tank.
- FLI shorted to VPWR.
- FPM stuck closed.
- FPM stuck open.
- FLI circuit open.
- FLI circuit shorted to CASE GND or PWR GND.
- Incorrectly installed fuel gauge.
- Overfilled fuel tank.