Cadillac P1189: Engine Oil Pressure Switch Circuit Malfunction
Is your scanner showing Cadillac P1189?
No worries. We'll show you what it means and how to deal with it.
Cadillac P1189: Engine Oil Pressure Switch Circuit Malfunction
OVERVIEWWhat Does The Cadillac P1189 Code Mean?
Starter request not activated this key cycle, ECT sensor at last key off over 176ºF and current ECT sensor signal 18ºF less than the signal at last key off, or with the time between last key off and current key on.
What Are The Potential Causes Of The Cadillac P1189 Code?
- EOT switch circuit is open or the EOT switch ground circuit is open
- Engine oil temperature switch is damaged or has failed
- PCM has failed
- TSB 87-65-24 contains a repair procedure for this code
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> GM Genuine Parts 12633238 Engine Control Module
>>> Engine Coolant Temperature Sensor, ECT Temp Sensor
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
