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Engine Oil Pressure Gage Inaccurate or Inoperative

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Engine Oil Pressure Gage Inaccurate or Inoperative

Step Action Yes No
Schematic Reference:  Instrument Cluster Schematics  
1 Did you perform the Instrument Cluster Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Instrument Cluster 
2 Start the engine.
Does the engine oil pressure gage display at or below 0 psi (0 kPa)?		 Go to Step 3  Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems
3
  1. Install a scan tool.
  2. Turn the ignition ON.
  3. With the scan tool, observe the Engine Oil Pressure Switch parameter in the PCM Engine Data 3 data list.
Does the Engine Oil Pressure Switch parameter display Ok?		 Go to Step 10  Go to Step 4 
4
  1. Turn the ignition OFF.
  2. Disconnect the engine oil pressure switch.
  3. Start the engine.
  4. With the scan tool, observe the Engine Oil Pressure Switch parameter.
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 .
Did you complete the replacement?		 Go to Step 11  -
9
IMPORTANT: Program the replacement PCM.
Replace the PCM. Refer to POWERTRAIN CONTROL MODULE .Did you complete the replacement?		 Go to Step 11  -
10
IMPORTANT: Program the replacement IPC.
Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .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 
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