Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Dtc Check / Clear

NOTICE:

• The steering lock ECU (steering lock actuator or upper bracket assembly) does not store history DTCs. If any DTCs are output, confirm and record them as soon as possible. Do not turn the engine switch off or clear the DTCs until the DTCs are confirmed and recorded.
• DTCs may have been stored due to problems unrelated to the steering lock system. Be sure to confirm and record any DTCs output for other systems.
• When using the Techstream with the engine switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Steering Lock System DTC No. Detection Item DTC Detection Condition Note Link B2781 Open / Short in Steering Lock ECU One of the following conditions i ...

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedures to troubleshoot the steering lock system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Lock System: Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *2 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - IG2 RELAY - IG2-MAIN FUSE - ECU-IG2 NO. 1 FUSE ILLUSTRATION *1 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *2 ID CODE BOX (IMMOBILISER CODE ECU) ...

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Rear Evaporator Temperature Sensor: Inspection
INSPECTION PROCEDURE 1. INSPECT NO. 2 AIR CONDITIONING HARNESS ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (No. 2 Air Conditioning Harness Assembly) *b Sensing Portion *c Resistance (kΩ) *d Temperature ...