DESCRIPTION
The millimeter wave radar sensor assembly receives information about the area in front of the vehicle from the forward recognition camera.
If the millimeter wave radar sensor assembly detects a malfunction in the forward recognition camera, it stores DTC C1AA0.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
---|---|---|---|
C1AA0 |
Front Camera Module Circuit |
While the ignition switch to ON, the forward recognition camera detects an internal malfunction for approximately 0.3 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) |
HINT:
Pre-collision system DTC C1AA0 may be stored due to a malfunction in the forward recognition camera system. Therefore, it is necessary to check for and troubleshoot forward recognition camera system DTCs first.
(a) Check for DTCs.
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Result |
Proceed to |
---|---|
Forward recognition camera system DTCs are not output |
A |
Forward recognition camera system DTCs are output |
B |
B | ![]() |
GO TO FORWARD RECOGNITION CAMERA SYSTEM |
|
2. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
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(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA0 is not output |
A |
DTC C1AA0 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
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.
Click here
|
4. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC C1AA0 is not output |
A |
DTC C1AA0 is output |
B |
A | ![]() |
END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE) |
B | ![]() |
REPLACE FORWARD RECOGNITION CAMERA |
Toyota CH-R Service Manual > Smart Key System(for Start Function): Brake Signal Malfunction (B2284)
DESCRIPTION
This DTC is stored when the brake signal sent via direct line and the brake signal
sent via CAN communication do not match.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
Note
B2284
Brake ...
Toyota CH-R Service Manual > Lighting System: Clearance Light/Daytime Running Light Circuit
DESCRIPTION
Clearance light function:
When the main body ECU (multiplex network body ECU) receives the light
control switch position signal, it sends an illumination request signal
to the headlight ECU sub-assembly LH and illuminates the clearance lights.
Daytime runni ...