2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) C CODE Page 794

INSPECTION PROCEDURE

NOTICE:

- If DTC C1782 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782 first See:

C1782.

- If the suspension control ECU is replaced, the vehicle height offset calibration and registration of vehicle identification

information must be performed See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Testing and Inspection/Calibration and See: Steering and Suspension/Suspension/Suspension Control ( Automatic -

Electronic )/Testing and Inspection/Registration)

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check the CAN communication system for any malfunctions See: Powertrain Management/Computers and Control

Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/Diagnosis

System.

Result:

B -- GO TO CAN COMMUNICATION SYSTEM See: Powertrain Management/Computers and Control Systems/Information

Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/How to Proceed With

Troubleshooting

A -- REPLACE SUSPENSION CONTROL ECU

Up to 08/2009

SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: C1782: Power Source Voltage Malfunction

C1782 - Power Source Voltage Malfunction

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

- Before performing troubleshooting, inspect the connectors of related circuits.

- Before replacing the suspension control ECU, perform all of the following again: 1) symptom simulation See: Accessories

and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled