Wireless Door Lock Control System

DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: 42: Wireless Door Lock Receiver Circuit Malfunction

DTC 42 - Wireless Door Lock Receiver Circuit Malfunction

DESCRIPTION

The door control receiver receives signals from the transmitter and sends these signals to the multiplex network body ECU. This DTC is output when, after the multiplex network body ECU outputs a PRG signal, a RDA signal is not input to the door control receiver within 1 second.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (CONTROL RECEIVER - MPX BODY ECU, BATTERY AND BODY GROUND)





(a) Disconnect the D4 receiver connector.
(b) Disconnect the B8 ECU connector.
(c) Measure the voltage and resistance of the wire harness side connectors.
Standard:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
2. REPLACE DOOR CONTROL RECEIVER
(a) After replacing the door control receiver with a normally functioning receiver, check for DTC.
Result:





B -- END
A -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)