OK:
DTC B1206 is not output.
NG -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) See: Body and Frame/Body Control
Systems/Body Control Module/Service and Repair/Removal
OK -- END (MULTIPLEX NETWORK MASTER SWITCH WAS DEFECTIVE)
Up to 08/2009
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: B1242: Wireless Door Lock Tuner Circuit Malfunction
B1242 - Wireless Door Lock Tuner Circuit Malfunction
DESCRIPTION
The door control receiver is used to receive electrical waves relating to the entry functions of the smart access system with push-button start. The
certification ECU (smart key ECU assembly) decodes the requested smart access system with push-button start operation by identifying a key code
based on the electric waves received via the door control receiver. The door control receiver receives a signal from the door control transmitter and
sends signals to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly). The certification
ECU (smart key ECU assembly) then sends a command, according to the requested operation, to each ECU (ex. if door lock operation is requested,
the certification ECU (smart key ECU assembly) sends a door lock command to the main body ECU (multiplex network body ECU).
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
* When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire
harness. If the wire harness is too close to the door control receiver, entry and wireless function performance may be affected.
* Before performing the inspection, check that there are no problems related to the CAN communication system and LIN
communication system.
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - CERTIFICATION ECU AND BODY GROUND)
(a) Disconnect the F58 and O1 certification ECU (smart key ECU assembly) connectors.
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