Detailed Flow
- PRELIMINARY INSPECTION
Perform the preliminary inspection. Refer to Inspection Procedure .
GO TO 2 .
- INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS TURNED ON)
Turn the ignition switch ON.
Does the charge warning lamp illuminate?
YES
GO TO 3 .
NO
GO TO 9 .
- INSPECTION WITH CHARGE WARNING LAMP (IDLING)
Start the engine and run it at idle.
Does the charge warning lamp turn OFF?
YES
GO TO 4.
NO
GO TO 5.
- INSPECTION WITH CHARGE WARNING LAMP (ENGINE AT 2, 500 RPM)
Increase and maintain the engine speed at 2, 500 RPM.
Does the charge warning lamp illuminate?
YES
GO TO 7 .
NO
Inspection End.
- TERMINAL L CIRCUIT (SHORT) INSPECTION
Check terminal L circuit for short. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 6 .
NO
Repair as needed.
- TERMINAL S CIRCUIT INSPECTION
Check terminal S circuit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 7.
NO
Repair as needed.
- MEASURE TERMINAL B VOLTAGE
Start engine. With engine running at 2, 500 RPM, measure terminal B voltage.
What voltage does the measurement result show?
Less than 13.0 V
GO TO 8 .
More than 16.0 V
Replace generator. Refer to Removal and Installation: Cummins 5.0L .
- TERMINAL B CIRCUIT INSPECTION
Check "B" terminal circuit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace generator. Refer to Removal and Installation: Cummins 5.0L .
NO
Repair as needed.
- INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)
- Disconnect generator connector and apply ground to terminal L.
- Turn the ignition switch ON.
Does the charge warning lamp illuminate?
YES
Replace generator. Refer to Removal and Installation: Cummins 5.0L .
NO
GO TO 10.
- CHECK TERMINAL L CIRCUIT (OPEN)
Check terminal L circuit open. Refer to Diagnosis Procedure .
Repair as needed.