Parts location

System diagram

Engine
Ignition coil and spark plugWireless Door Lock Tuner Circuit Malfunction
DTC B1242 Wireless Door Lock Tuner Circuit Malfunction
DESCRIPTION
When a RDA signal is not input to the door control receiver within 1 second
after the multiplex network
body ECU outputs a PRG signal, this DTC is set.
DTC No.
DTC Detection Condition
Suspected Area
...
Only Back Door cannot be Opened
DESCRIPTION
With power back door: The signal for manual locking/unlocking operation of
the driver/passenger side
door and the signal for locking/unlocking operation interlocked with the driver
side door key cylinder are
sent to the back door ECU from the body ECU using the MPX line. In respon ...
Power back door system
PARTS LOCATION
...