P1651 OBD Trouble Code

1 result found

P1651 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Cooling Fan 1 Control Relay Circuit Conditions

Cause

Key on, then the PCM detected an improper voltage level on ODM B output 1 fault line circuit, all conditions met for 5-30 seconds (length of time to set varies by engine family)

Try also: https://www.obd-codes.com/p1651