Engine Oil Pressure Indicator Always On (3.8L)
Engine Oil Pressure Indicator Always On (3.8L)
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Instrument Cluster Schematics Connector End View Reference: Powertrain Control Module (PCM) Connector End Views in Engine Controls - 3.8 L or to Inline Harness Connector End Views |
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| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Start the engine. Does the engine oil pressure indicator illuminate after the displays test? |
- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
| 3 |
|
- | Go to Step 10 | Go to Step 4 |
| 4 |
|
- | Go to Step 6 | Go to Step 5 |
| 5 | Test the signal circuit of the Engine Oil Pressure Switch for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the engine oil pressure switch. 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 8 |
| 7 | Inspect for poor connections at the harness connector of the 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 | Replace the engine oil pressure switch. Refer to Engine Oil Pressure Sensor and/or Switch Replacement
in Engine Mechanical - 3.8 L. Did you complete the replacement? |
- | Go to Step 11 | - |
| 9 | Replace the PCM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 11 | - |
| 10 | 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 11 | - |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 2 |