What does code P1617 mean?

Q: What does code P1617 mean?

Engine Oil Level Switch Circuit. P1617 on GM vehicles indicates that the engine control module (ECM) has detected an implausible signal from the engine oil level switch circuit, meaning the switch is not reporting the expected oil level condition. The ECM monitors this circuit to warn the driver of low oil, and when the voltage or resistance falls outside the expected range, it stores this code and illuminates the check engine light.

DTC codes / GM codes / P1617

P1617 · GMEngine Oil Level Switch Circuit

P1617 on GM vehicles indicates that the engine control module (ECM) has detected an implausible signal from the engine oil level switch circuit, meaning the switch is not reporting the expected oil level condition. The ECM monitors this circuit to warn the driver of low oil, and when the voltage or resistance falls outside the expected range, it stores this code and illuminates the check engine light.

SystemPowertrain

Code typeGM specific

SeverityLow

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.