Monday, April 26, 2021

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 1281


Text in Illustration



HINT



Codes other than DTC B1632 and B1637 may be output at this time, but they are not related to this check.



C -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm



Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting



B -- REPLACE REAR AIRBAG SENSOR LH



A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY See: Relays and Modules/Relays and Modules - Restraints and Safety



Systems/Air Bag Control Module/Service and Repair/Removal



Up to 08/2009



SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1650/32: Occupant Classification System Malfunction



B1650/32 - Occupant Classification System Malfunction



DESCRIPTION



The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification system.



If the center airbag sensor assembly receives signals from the occupant classification ECU, it determines whether the front passenger airbag, front



passenger side knee airbag and front seat belt pretensioner RH should be operated.



DTC B1650/32 is recorded when a malfunction is detected in the occupant classification system circuit.



WIRING DIAGRAM



INSPECTION PROCEDURE



PROCEDURE



1. CHECK DTC (OCCUPANT CLASSIFICATION ECU)



(a) Turn the engine switch on (IG).



(b) Using the Techstream, check for DTCs of the occupant classification ECU See: Restraints and Safety Systems/Testing and



Inspection/Reading and Clearing Diagnostic Trouble Codes.



NG -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS



OK -- Continue to next step.

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