Lexus ES manuals

Lexus ES: Steering Angle Sensor Failure (C1626)

DESCRIPTION

  • This DTC is stored if the parking assist ECU receives a signal via CAN communication from the steering sensor that indicates an internal malfunction.
  • This DTC is stored if the rear television camera 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 angle sensor

  • Steering sensor
  • Parking assist ECU

CAUTION / NOTICE / HINT

NOTICE:

  • When "!" is displayed on the multi-display assembly after the cable is disconnected from the negative (-) auxiliary battery terminal, correct the steering angle neutral point.

    Click here

  • Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the panoramic view monitor system may be needed.

    Click here

  • The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

    Click here

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Chassis > Circumference Monitoring Camera Control Module > Clear DTCs Chassis > Rear Camera > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Chassis > Circumference Monitoring Camera Control Module > Trouble Codes Chassis > Rear Camera > Trouble Codes

Result

Proceed to

DTC C1626 is output

A

DTC C1626 is not output

B

B

USE SIMULATION METHOD TO CHECK

A

2.

REPLACE STEERING SENSOR

(a) Replace the steering sensor with a normally functioning one.

Click here

NEXT

3.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Chassis > Circumference Monitoring Camera Control Module > Clear DTCs Chassis > Rear Camera > Clear DTCs

(b) Check for DTCs.

Chassis > Circumference Monitoring Camera Control Module > Trouble Codes Chassis > Rear Camera > Trouble Codes

Result

Proceed to

No DTCs are output

A

DTC C1626 is output ("Panoramic View Monitor")

B

DTC C1626 is output ("Parking Assist Camera")

C

A

END (STEERING SENSOR WAS DEFECTIVE)

B

REPLACE PARKING ASSIST ECU

C

REPLACE REAR TELEVISION CAMERA ASSEMBLY

READ NEXT:

 Front Camera Feedback Malfunction (C1681)

DESCRIPTION DTC C1681 is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the front television camera ass

 Front Camera Current Malfunction (C1682)

DESCRIPTION DTC C1682 is stored if the parking assist ECU judges as a result of its self check that there is a problem with the current supplied from the front television camera assembly connected to

 Side Camera Feedback Malfunction (C1683)

DESCRIPTION This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the passenger side television ca

SEE MORE:

 Terminals Of Ecu

TERMINALS OF ECU PARKING ASSIST ECU (a) Disconnect the N44 parking assist ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition N44-1 (+B) - N44-4 (GND1

 ECM Power Source Circuit

DESCRIPTION When the power switch is turned to on (IG), the auxiliary battery voltage is applied to IGSW of the ECM. When the transistor in the MREL circuit operates, current flows from the auxiliary battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay wh

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