2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 2664

NEXT -- Continue to next step.

1. CHECK DTC OUTPUT

(a) Clear the DTCs See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/Engine Immobiliser System.

(b) Recheck for DTCs See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and Inspection/Reading and

Clearing Diagnostic Trouble Codes/Engine Immobiliser System.

OK:

DTC B2784 is not output.

NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) See: Accessories and Optional

Equipment/Antitheft and Alarm Systems/Alarm Module/Service and Repair/Removal

OK -- END (ENGINE SWITCH WAS DEFECTIVE)

Up to 08/2009

NETWORKING: LIN COMMUNICATION SYSTEM: B2785: Communication Malfunction between ECUs Connected by LIN

B2785 - Communication Malfunction between ECUs Connected by LIN

DESCRIPTION

The certification ECU (smart key ECU assembly) monitors communication between all the ECUs connected to the certification bus lines. When the

certification ECU (smart key ECU assembly) detects errors in communication with all the ECUs connected to the certification bus lines at a set

interval and 3 times in a row, DTC B2785 will be stored.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

* If the certification ECU (smart key ECU assembly) is replaced, register the key.

* If the steering lock ECU (steering lock actuator assembly) is replaced, register the ECU code.

* If the ID code box (immobiliser code ECU) is replaced, register the ECU code and ECU communication ID.

* When using the Techstream to troubleshoot with the engine switch off:

* Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication

between the Techstream and vehicle begins.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - EACH ECU)