Lexus Worldzz: 2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) C CODE Page 610

(a) Clear the DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs See: Steering and Suspension/Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC is not output.

NG -- REPLACE POWER STEERING ECU See: Relays and Modules/Relays and Modules - Steering and Suspension/Relays and

Modules - Steering/Steering Control Module/Service and Repair/Removal

OK -- CHECK INTERMITTENT PROBLEMS See: Accessories and Optional Equipment/Antitheft and Alarm

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

Up to 08/2009

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1521,C1531-C1534,C1554: Motor Circuit Malfunction

DESCRIPTION

If the power steering ECU detects these DTCs, it will shut off the motor relay circuit (built into the power steering ECU) and stop power assist.

However, power assist continues if DTC C1533 or C1534 is stored.

INSPECTION PROCEDURE

NOTICE:

If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor

zero point calibration See: Steering and Suspension/Steering/Testing and Inspection/Programming and Relearning.

PROCEDURE

1. CHECK FOR DTC