P1654 OBD Trouble Code

1 result found

P1654 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

A/C Relay Control Circuit Conditions

Cause

Engine running, then the PCM detected an improper voltage level on ODM 'B' output 4 fault line circuit, all conditions met for 5-30 seconds (length of time to set vanes by engine family)

Try also: https://www.obd-codes.com/p1654