Diagnosis Procedure
- CHECK FUEL PUMP CONTROL MODULE (FPCM) SIGNAL
Refer to "COMPONENT INSPECTION (FPCM) ".
Is the inspection result normal?
YES: GO TO 2.
NO: Replace FPCM. Refer to "REMOVAL AND INSTALLATION ".
- CHECK FUEL PUMP CONTROL CIRCUIT
- Turn ignition switch OFF.
- Disconnect FPCM harness connector and fuel level sensor unit and fuel pump (main) harness connector.
- Check the continuity between FPCM harness connector and fuel level sensor unit and fuel pump (main) harness connector.
FPCM Fuel level sensor unit and fuel pump (main) Continuity Connector Terminal Connector Terminal B221 6 B241 3 Existed 7 1 - Also check harness for short to ground and short to power.
Is inspection result normal?
YES: Replace fuel level sensor unit and fuel pump (main) (fuel pressure regulator malfunction). Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace error-detected parts.