Diagnostic Aids
The driver information center (DIC) may display a "Charging System Failure" message. This message being displayed is the result of a class 2 message being sent by the engine control module (ECM), dash integration module (DIM), or the instrument panel cluster (IPC) to the DIC. Each module has a different criteria for requesting the message to be displayed. Refer to Charging System Description and Operation .
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Connector End View Reference: Engine Control Module Connector End Views in Engine Controls - 4.6L (LH2), Engine Control Module Connector End Views in Engine Controls - 3.6L (LY7), or Power and Grounding Connector End Views in Wiring Systems | ||||
1 | Did you perform the Engine Electrical Diagnostic System Check? | -- | Go to Step 2 | |
2 |
Does the battery charge indicator remain illuminated? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 |
Do all of the voltage measure within the specified range? | 1.0 V | Go to Step 4 | Go to Step 5 |
4 | Are the voltages displayed within the specified range? | 11.0-16.0 V | Go to Step 5 | Go to Charging System Test |
5 | Test the battery positive voltage and ground circuits of the affected module for a high resistance or open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the affected module. Refer to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 7 |
7 | Replace the affected module. Refer to Control Module References in Body Control System. Did you complete the replacement? | -- | Go to Step 8 | -- |
8 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
