Charge Indicator Always On
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Charge Indicator Always On
| 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 | Go to Diagnostic System Check - Engine Electrical |
| 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 |
|
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 (PCM) 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 Panel Cluster (IPC) 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 |