Step 
 | Action 
 | Value(s) 
 | Yes 
 | No 
 | 
1 
 | Did you perform the Instrument Cluster System Check? 
 | -- 
 | Go to 
Step 2
 
 | Go to 
Instrument Cluster System Check  
 | 
2 
 | 
- Ensure that the engine oil level is correct.
 
- Ensure that the engine develops adequate oil pressure. Refer to Oil Pressure Diagnosis and Testing
 in Engine Mechanical - 2.2L or Oil Pressure Diagnosis and Testing
 in Engine Mechanical
- 4.3L.
 
- Remove the connector from the engine oil pressure gauge sensor.
 
- Connect a variable 100 ohms resistor between the engine
oil pressure gauge sensor connector terminal A and the ground.
 
- Turn the ignition switch to the RUN position.
 
- Turn the variable resistance (potentiometer) back and forth for
maximum to minimum resistance.
 
 
Does the oil pressure gauge operate normally? 
 | 0 ohms (no oil pressure) 
88 ohms (maximum oil pressure) 
 | Go to 
Step 3
 
 | Go to 
Step 4
 
 | 
3 
 | 
- Replace the engine oil pressure gauge sensor. Refer to 
Engine Oil Pressure Sensor and/or Switch Replacement 
 
- Reconnect the engine oil pressure gauge sensor connector.
 
 
Is the repair complete? 
 | -- 
 | Go to 
Instrument Cluster System Check  
 | -- 
 | 
4 
 | 
- Remove the IPC.
 
- Test the continuity on CKT 331 (TAN/WHT) between the IPC
connector cavity A2 and the engine oil  pressure gauge sensor connector
 cavity A.
 
 
Is continuity present? 
 | -- 
 | Go to 
Step 6
 
 | Go to 
Step 5
 
 | 
5 
 | Repair the open or short in CKT 331. Refer to 
Wiring Repairs  
Is the repair complete? 
 | -- 
 | Go to 
Instrument Cluster System Check  
 | -- 
 | 
6 
 | Replace the IPC. Refer to 
Instrument Cluster Replacement  
Is the repair complete? 
 | -- 
 | Go to 
Instrument Cluster System Check  
 | -- 
 |