P1629 OBD Trouble Code

1 result found

P1629 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Theft Deterrent Fuel Enable Signal Not Received Conditions

Cause

Key on, then the PCM received an unrecognized password from the IPC (controller) or it received a "bad" timing cycle from the IPC.

Try also: https://www.obd-codes.com/p1629