B1242 - Wireless Door Lock Control System (W/ Smart Key System)

DTC B1242 WIRELESS DOOR LOCK TUNER CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detection Condition:

This DTC is detected when: 1) GND short occurs on the RDA or RSS1 lines of the door lock receiver; and/or GND short occurs on the RDA2 or RSS2 lines of the door lock receiver. If this DTC is detected, check the circuit that has communication malfunction.

Wiring Diagram:

Step 1 - 3:

Step 4 - 5:

INSPECTION PROCEDURE