Circuit Description
When BCM receives driver door unlock request from door lock switches or Remote Keyless Entry (RKE) transmitter, it supplies ground through circuit No. 1391 (Light Green wire) to energize door lock relay.
DTC B2202 will set when BCM detects a short to ground or open in circuit No. 1391 (Light Green wire). No driver warning message will be displayed.
If conditions for malfunction no longer exist, history DTC will clear after 100 consecutive ignition cycles. DTC B2202 will also clear when conditions no longer exist or scan tool is used to clear codes.