Toyota Avalon Service & Repair Manual: Front Radar Sensor (C1A10)

DESCRIPTION

The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle.

When the driving support ECU assembly receives information that there is a malfunction in the millimeter wave radar sensor assembly, DTC C1A10 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

C1A10

Front Radar Sensor

While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, the driving support ECU assembly receives a malfunction signal from the millimeter wave radar sensor assembly for approximately 0.3 seconds or more.

Millimeter wave radar sensor assembly

Does not come on

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the millimeter wave radar sensor assembly, make sure to replace it with a new one. If a device which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle, and as a result, a DTC may be stored.
  • When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.

    Click here

PROCEDURE

1.

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

(a) Replace the millimeter wave radar sensor assembly with a new one.

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(b) Perform millimeter wave radar sensor assembly adjustment.

Click here

NEXT

END

    Vehicle Information Not Obtained (C1A02)

    Front Radar Sensor Incorrect Axial Gap (C1A11,C1A14)

    See More:

    Toyota Avalon Service & Repair Manual > Pre-collision System(for Gasoline Model): Utility
    UTILITY NOTICE: When replacing a millimeter wave radar sensor assembly, replace it with a new one. When the millimeter wave radar sensor assembly is replaced with a new one, it stores the country specification information received from the driving support ECU assembly. If a millimeter wave radar sen ...

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