Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
5. Check FPCM Ground Circuit-II For Open And Short
- Disconnect "fuel level sensor unit and fuel pump" harness connector.
- Disconnect dropping resistor harness connector.
- Check harness continuity between the following;
"fuel level sensor unit and fuel pump" terminal 1 and dropping resistor terminal 2,
FPCM terminal 4 and dropping resister terminal 2. Refer to WIRING DIAGRAM .
Continuity should exist.
- Check harness continuity between the following;
FPCM terminal 4 and ground,
"fuel level sensor and fuel pump" terminal 1 and ground. Refer to WIRING DIAGRAM .
Continuity should not exist.
- Also check harness for short to power.
OK or NG
- OK: GO TO 7. CHECK FPCM INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
- NG: GO TO 6.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.