Engine Oil Temperature Indicator Always On
Engine Oil Temperature Indicator Always On
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Instrument Cluster Schematics Connector End View Reference: ENGINE CONTROLS CONNECTOR END VIEWS in Engine Controls - 5.3 L, 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 |
| 2 | Start the engine. Does the OIL TEMP HIGH message display in the driver information center (DIC)? |
- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections |
| 3 |
|
30°C - 140°C (86°F --284 F) | Go to Step 10 | Go to Step 4 |
| 4 |
|
30°C (86°F) | Go to Step 6 | Go to Step 5 |
| 5 | Test the signal circuit of the engine oil temperature switch for a short to ground. Refer to Circuit Testing
and Wiring Repairs
. 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 temperature switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. 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 ECM/PCM. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
- | Go to Step 11 | Go to Step 9 |
| 8 | Replace the engine oil temperature switch. Refer to Engine Oil Level Sensor and/or Switch Replacement
in Engine Mechanical - 5.3 L or Engine Oil Level Sensor and/or Switch Replacement
in Engine Mechanical - 3.8 L. Did you complete the replacement? |
- | Go to Step 11 | - |
| 9 | Replace the ECM/PCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 11 | - |
| 10 | Replace the IPC. Refer to Control Module References
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 |