Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Starting and Charging Schematics | ||||
1 | Did you perform the Diagnostic System Check for Engine Electrical? | -- | Go to Step 2 | |
2 | Start the engine. Does the charge indicator lamp remain illuminated? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
3 |
Is the Ignition 1 Signal parameter voltage greater than the specified value? | 11.5 V | Go to Step 4 | Go to Charging System Test |
4 | With a scan tool, command the GEN L-Terminal ON and OFF. Does the Ignition 1 Signal parameter voltage change with each command? | -- | Go to Step 10 | Go to Step 5 |
5 | Test the generator L-terminal signal circuit a short or open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the generator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Charging System Test |
7 | Inspect for poor connections at the harness connector of the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 9 |
8 | Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 |
9 |
Important: Perform the set up procedures for the PCM. Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls - 3.8 (L26 and L32). Did you complete the replacement? | -- | Go to Step 11 | -- |
10 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console. Did you complete the replacement? | -- | Go to Step 11 | -- |
11 | Operate the system for which the symptom occurred. Did you correct the condition? | -- | System OK | Go to Step 2 |
