Oil Pressure Gauge Not Operating Properly

Possible Causes are:

• DTC PRESENT
• INSTRUMENT CLUSTER

Using the DRBIII(R), read Powertrain DTC's. If any Oil Pressure Sensor Volts codes are present, see SELF-DIAGNOSTICS - GRAND CHEROKEE article in ENGINE PERFORMANCE. Perform the Instrument Cluster Self Test. The self test can be performed with the DRBIII(R) or manually using the following procedure: Turn ignition off. Press and hold the Trip Reset button. Turn ignition on. The Oil Pressure Gauge should position the indicator needle at the following calibration points: 40 PSI, 60 PSI, 80 PSI and LOW PSI. Observe the Oil Pressure Gauge during the self test. Did the Oil Pressure Gauge operate correctly during the self test? If yes, diagnose and repair oil pressure sensor. See DTCs P0522 and P0523 under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - GRAND CHEROKEE article in ENGINE PERFORMANCE. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, replace the instrument cluster. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.