P1663 OBD Trouble Code

1 result found

P1663 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Change Oil Lamp Control Circuit Conditions

Cause

Engine speed over 600 rpm, then the PCM detected that commanded state of the Change Oil Lamp driver and the Actual state of the control circuit did not match for over 5 seconds.

Try also: https://www.obd-codes.com/p1663