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FPCV circuit fault FPCV failure Fuel pump module circuit(s): high Fuel pump module failure Fuel injection pump failure
For fuel pump module circuit tests, GO to Pinpoint Test G552807p4. and GO to Pinpoint Test G552807p6. For FPCV and circuit tests, Fuel Charging and Controls For fuel injection pump, Fuel Injection Pump
Pinpoint tests CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00. Failure to follow this instruction may result in damage to the vehicle.
NOTE:
When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to 3 decimal places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.
NOTE:
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
NOTE:
If DTCs are recorded and a fault is not present when performing the pinpoint tests, an intermittent concern may be the cause. Always check for loose connections and corroded terminals.
PINPOINT TEST G552807p1 : REM |