Oil Pressure Gauge Incorrect Test
- Enter self-diagnostics, and check if BCM diagnostic code B132 is set. If Code B132 is set, repair as required. See TESTS W/CODES article in the ENGINE PERFORMANCE section. If no codes are present, go to next step.
- Determine if engine has a high or low oil pressure condition by removing oil pressure sensor. Connect a known good mechanical oil pressure gauge to vehicle. If oil pressure is okay, go to next step.
- Unplug oil pressure sensor connector. Oil pressure sensor is located on right side of engine, above drive axle. With ignition switch in RUN position, connect a voltmeter between oil pressure sensor connector terminal "A" (Light/Green wire) and ground. If voltmeter indicates 5 volts, replace oil pressure sensor. If 5 volts are not present, go to next step.
- Using a voltmeter, backprobe terminal 3C3 (Light Green wire) of BCM to ground. BCM is located behind left side of instrument panel compartment, on the right side of instrument panel. If 5 volts are present, check and repair wiring connections as necessary. If 5 volts are not present, check Light Green wire for a short to ground. If wire is okay, replace BCM.