Toyota Avalon Service & Repair Manual: Steering Angle Sensor Failure (C1626)

Toyota Avalon Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intelligent Clearance Sonar System(for Gasoline Model) / 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.
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After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).
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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.

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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

Result	Proceed to
DTC C1626 is output	A
DTC C1626 is not output	B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

END (STEERING SENSOR DEFECTIVE)

Open or Short in Steering Angle Sensor +B (C1625)

G Sensor Failure (C1647)

See More:

Toyota Avalon Service & Repair Manual > Vehicle Proximity Notification System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected ...

Toyota Avalon Service & Repair Manual: Steering Angle Sensor Failure (C1626)

Open or Short in Steering Angle Sensor +B (C1625)

G Sensor Failure (C1647)

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