Lexus Worldzz: 2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) C CODE Page 629

OK:

The ECM that complies with vehicle specifications is installed.

NG -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and

Repair/Removal

OK -- 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

Up to 08/2009

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1582: Assist Map Number Mismatch

C1582 - Assist Map Number Mismatch

DESCRIPTION

When an incorrect ECM is installed after the assist map has been recorded in the power steering ECU, then DTC C1582 is stored because the data

does not match the vehicle specifications.

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 (CAN COMMUNICATION SYSTEM)

(a) Using the Techstream, check for DTCs and confirm that there are no problems in the CAN communication system See: Powertrain

Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic

Overview/CAN Communication System/Diagnosis System.

OK:

DTC is not output.

NG -- 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

OK -- Continue to next step.

2. CHECK ECM

(a) Check if an ECM that complies with the vehicle specifications is installed.

OK: