Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Engine Controls Schematics in Engine Controls - 4.6L (LH2) Connector End View Reference: Engine Control Module Connector End Views in Engine Controls - 4.6L (LH2) or Power and Grounding Connector End Views in Wiring Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 | Turn ON the ignition, with the engine OFF. Does the battery charge indicator illuminate? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Does the charge indicator turn On and Off with each command? | Go to Step 4 | Go to Step 7 |
4 | Test the generator turn on signal circuit for an 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 5 |
5 | Inspect for poor connections at the harness connector of the engine control module (ECM). Refer to Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 8 | Go to Step 6 |
6 | Replace the ECM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 8 | -- |
7 | Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. 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 |
