Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B5GN
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for Gasoline Model): C1626; Steering Angle Sensor Failure; 2019 - 2022 MY Avalon [04/2018 -        ]

DTC

C1626

Steering Angle Sensor Failure

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 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

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

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for Gasoline Model): CALIBRATION

  • 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 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: STEERING ANGLE SENSOR: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: STEERING ANGLE SENSOR: REMOVAL

NEXT

2.

CHECK DTC OUTPUT

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

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.

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 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

B

END (STEERING SENSOR DEFECTIVE)