Tuesday, September 22, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 622


SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1603/83,B1612/83,B1613/83: Front Satellite Sensor Bus RH



Initialization Incomplete



B1603/83 - Front Satellite Sensor Bus RH Initialization Incomplete



B1612/83 - Lost Communication with Front Airbag Sensor RH



B1613/83 - Front Airbag Sensor RH Initialization Incomplete



DESCRIPTION



The front airbag sensor RH circuit consists of the center airbag sensor assembly and front airbag sensor RH.



The front airbag sensor RH detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be



deployed.



These DTCs are recorded when a malfunction is detected in the front airbag sensor RH circuit.



WIRING DIAGRAM



INSPECTION PROCEDURE



PROCEDURE



1. CHECK CONNECTORS



(a) Turn the engine switch off.



(b) Disconnect the cable from the negative (-) battery terminal.



NOTICE:



Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.



(c) Check that the connectors are properly connected to the center airbag sensor assembly and front airbag sensor RH. Also check that the



connectors that link the engine room main wire and instrument panel wire are properly connected.



OK:



The connectors are properly connected.



HINT



If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.



(d) Disconnect the connectors from the center airbag sensor assembly and front airbag sensor RH. Also disconnect the connectors that link



the engine room main wire and instrument panel wire.



(e) Check that the connector terminals are not damaged.

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