Pinpoint Test J: The Charging System Warning Indicator Is Off With The Ignition Switch In The Run Position And The Engine Off
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- J1 CHECK THE DTCS IN THE PCM
- Key in OFF position.
- Connect the diagnostic tool.
- Key in ON position.
- With the key ON, engine OFF, check the PCM for DTCs with the diagnostic tool.
- Do generator DTCs exist?
- Yes : GO to the appropriate pinpoint test listed in the Symptom Chart.
- No : GO to J2.
- J2 CHECK THE CHARGING SYSTEM WARNING INDICATOR OPERATION
- Key in OFF position.
- Disconnect the diagnostic tool.
- Disconnect: PCM C1381a.
- Key in ON position.
- With the key ON, engine OFF, connect a fused (15A) jumper wire between the PCM C1381a pin 30, circuit 3090 (VT), harness side and ground.
- Does the charging system warning indicator illuminate?
- Yes : GO to J3.
- No : REFER to INSTRUMENT CLUSTER .
- J3 CHECK FOR CORRECT PCM OPERATION
- Disconnect all the PCM connectors.
- Check for:
- corrosion
- pushed-out pins
- Connect all the PCM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS - DIESEL ENGINE . CLEAR the DTCs. REPEAT the PCM self-test. TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.