Saturday, March 23, 2019

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 389


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.

No comments:

Post a Comment