Sunday, March 21, 2021

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 404


NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR



OK -- Continue to next step.



4. REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY



(a) Replace the sliding roof drive gear assembly See: Body and Frame/Roof and Associated Components/Sunroof / Moonroof/Service



and Repair/Removal and Replacement/Removal.



NEXT -- Continue to next step.



5. CHECK DTC OUTPUT



(a) Clear the DTC See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Reading and



Clearing Diagnostic Trouble Codes.



(b) Recheck for DTCs.



OK:



DTC B1273 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 (SLIDING ROOF DRIVE GEAR ASSEMBLY WAS DEFECTIVE)



From 08/2009



NETWORKING: LIN COMMUNICATION SYSTEM: B1273: Sliding Roof ECU Communication Stop



B1273 - Sliding Roof ECU Communication Stop



DESCRIPTION



This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear assembly) and main body ECU (multiplex



network body ECU) stops for more than 10 seconds.



WIRING DIAGRAM



INSPECTION PROCEDURE



NOTICE:



* When the sliding roof ECU (sliding roof drive gear assembly) is replaced or removed and reinstalled, it requires initialization



See: Body and Frame/Roof and Associated Components/Sunroof / Moonroof/Testing and Inspection/Programming and

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