Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Steering Angle Sensor Failure (C1626)

DESCRIPTION

This DTC is stored if the clearance warning ECU assembly receives a signal via CAN communication from the steering sensor that indicates an internal malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1626

Steering Angle Sensor Failure

A fail flag is transmitted from the steering sensor

  • Steering sensor
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

  • After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

    Click here

  • When continuing with the inspection, confirm that the necessary procedures (adjustment, calibration, initialization or registration) have been completed before proceeding.

PROCEDURE

1.

REPLACE STEERING SENSOR

(a) Replace the steering sensor with a new or known good one.

Click here

NEXT

2.

CHECK DTC OUTPUT

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

Click here

HINT:

After turning the engine switch from off to on (IG), wait 4 seconds or more before

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

(b) Clear the DTCs according to the screen on the Techstream.

Click here

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(c) Recheck for DTCs.

Result

Proceed to

DTC C1626 is output

A

DTC C1626 is not output

B

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

END (STEERING SENSOR DEFECTIVE)

    Open or Short in Steering Angle Sensor +B (C1625)
    DESCRIPTION This DTC is stored if the clearance warning ECU assembly receives a signal via CAN communication from the steering sensor that indicates a power supply problem. DTC No. Detection Item ...

    Communication Error From Clearance Sonar ECU to VSC (C164B)
    DESCRIPTION The vehicle stability control system receives intelligent clearance sonar system information from the clearance warning ECU assembly via CAN communication. When it is determined that there ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vacuum Switching Valve (for Acis): Removal
    REMOVAL PROCEDURE 1. REMOVE V-BANK COVER SUB-ASSEMBLY Click here 2. REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (for ACIS) (a) Disconnect the No. 1 vacuum switching valve assembly (for ACIS) connector. (b) Disconnect the 2 vacuum hose assemblies from the No. 1 vacuum switching v ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Panoramic View Monitor System: Front Camera Response Malfunction (C2A6D)
    DESCRIPTION During self diagnosis of the parking assist ECU, the parking assist ECU sends display mode ID signals to the front television camera assembly. This DTC is stored when the output of the front television camera assembly does not match the expected output. DTC No. Detection Item DTC ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0131