DTC B3031: Security System Controller In Learn Mode: Notes

For wiring schematics, see BODY COMPUTER .

The passlock sensor is powered by circuit 812. The passlock sensor is grounded by circuit 1057. Passlock sensor data is supplied to the Body Control Module (BCM) by circuit 1836.

The passlock sensor data supplied to the BCM is in the form of V-codes or voltage codes. When the proper ignition key is turned in the ignition switch, the correct V-code is supplied to the BCM. The BCM responds by sending a serial data password to the engine controller allowing the engine to run.

If the BCM has not learned a V-code, DTC B3031 will be set. The vehicle will not start.