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 Connector End Views in Engine Controls - 3.8 L or to Inline Harness Connector End Views | ||||
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 |
Does the Engine Oil Pressure Switch parameter display OK? | -- | Go to Step 10 | Go to Step 4 |
4 |
Does the Engine Oil Pressure Switch parameter display OK? | -- | 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 |
Engine Oil Pressure Indicator Always On 5.3L
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Instrument Cluster Schematics Connector End View Reference: Engine Controls Connector End Views for the 5.3L engine or Inline Harness Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
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 |
3 | Replace the instrument panel cluster (IPC). Refer to Control Module References for replacement, setup and programming. Did you complete the replacement? | Go to Step 4 | -- |
4 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
