Toyota Tundra Service Manual: Front Radar Sensor (C1A10)

DESCRIPTION

When an internal malfunction is detected in the millimeter wave radar sensor assembly, DTC C1A10 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1A10	Front Radar Sensor	When the ignition switch is ON, the millimeter wave radar sensor assembly detects an internal malfunction for approximately 1 second 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. If a millimeter wave radar sensor assembly 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. As a result, a DTC may be stored.
If the millimeter wave radar sensor assembly has been replaced, be sure to perform millimeter wave radar sensor assembly adjustment.
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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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END

Toyota Tundra Service Manual > Occupant Classification System: Open in Occupant Classification ECU Battery Positive Line (B1794)
DESCRIPTION DTC B1794 is set when a malfunction is detected in the occupant classification ECU. DTC Code DTC Detection Condition Trouble Area B1794 One of following conditions is met: Occupant classification ECU circuit malfunction Occupant classification ECU malfunction Occupant classification ECU ...

Toyota Tundra Owners Manual