Where is the theft deterrent fuel enable signal lost?

DTC P1626 Theft Deterrent Fuel Enable Signal Lost. The Vehicle Theft Deterrent system is designed to disable vehicle operation if the incorrect key or starting procedure is used. The Body Control Module enables the crank circuit to the starter and sends a signal to the PCM if the correct key is being used.

How to turn on theft deterrent in DTC p1626?

Go to Step 4 Go to Vehicle Theft Deterrent (VTD) System Checkin Theft Deterrent 4 Turn OFF the ignition. Disconnect the BCM connector. Refer to Body Control Module Replacementin Body Control System. Turn ON the ignition leaving the engine OFF.

What does DTC p1626 mean on a car?

If the proper signal is present on the theft deterrent fuel enable circuit, the PCM enables fuel delivery to allow the engine to start. If the PCM detects that the fuel enables signal is not present or incorrect while the engine is running, DTC P1626 will be set.

How do I relearn GM theft deterrent system?

If the key signature transmitted is acceptable to the theft deterrent control module, the theft deterrent control module will transmit fuel enable password to the PCM. If the fuel enable password is correct, the PCM will start the vehicle. To perform a relearn on a Passkey III system, make sure there is a fully charged battery in the vehicle.

How to reset theft deterrent fuel enable signal?

The PCM has detected a loss of the state of health serial data message from the Theft Deterrent system. The PCM stores conditions which were present when the DTC set as Failure Records only. This information will not be stored as Freeze Frame Records. The DTC becomes history when the conditions for setting the DTC are no longer present.

When does the theft deterrent signal come on?

The Body Control Module (BCM) produces the theft deterrent fuel enable signal when the ignition is ON and the proper key resistor pellet is sensed. The powertrain control module ( PCM) monitors the fuel enable signal during crank.