Toyota CH-R Service Manual: Front Radar Sensor (C1A10)

Toyota CH-R Service Manual / Pre-collision / Pre-collision System / Front Radar Sensor (C1A10)

DESCRIPTION

C1A10 is output when there is an internal malfunction in the millimeter wave radar sensor assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A10	Front Radar Sensor	After the ignition switch is turned to ON, the internal malfunction of the millimeter wave radar sensor assembly continues for 0.1 seconds or more	Millimeter wave radar sensor assembly

CAUTION / NOTICE / HINT

NOTICE:

When replacing the millimeter wave radar sensor assembly, always replace it with a new one.
When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.
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PROCEDURE

1.	REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

(a) Replace the millimeter wave radar sensor assembly.

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(b) Adjust the millimeter wave radar sensor assembly.

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2.	CLEAR DTC (PRE-COLLISION SYSTEM)

(a) Clear the DTCs.

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Body Electrical > Pre-Collision 2 > Clear DTCs

END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE)

Front Radar Sensor Incorrect Axial Gap (C1A11,C1A14)

DESCRIPTION When the system determines that the vehicle is driving straight ahead based on signals from the yaw rate and acceleration sensor (airbag sensor assembly), etc., the millimeter wave ra ...

ECU Power Source Circuit

DESCRIPTION This circuit supplies power to the millimeter wave radar sensor assembly when the ignition switch is ON. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circu ...

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