Toyota CH-R Service Manual: Master Module Horizontal Axis Misalignment (C1AC1)
DESCRIPTION
This DTC is stored when the angle of the blind spot monitor sensor LH (Master) deviates more than the allowable range from the horizontal axis.
HINT:
- If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor system on, the blind spot monitor sensor may store this DTC by mistake.
- When mud, snow, ice, a sticker, etc. is covering the sensor or its surrounding area on the rear bumper, the blind spot monitor sensor may store this DTC by mistake.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AC1 |
Master Module Horizontal Axis Misalignment |
When the blind spot monitor sensor deviates 5 degrees or more from the horizontal axis when the system is activated |
Blind spot monitor sensor LH (Master) |
CAUTION / NOTICE / HINT
NOTICE:
- When checking for DTCs, make sure that the blind spot monitor system is turned on.
- If the bumper is damaged or the vehicle has a history of body repair,
there is a possibility that the installation area of the blind spot monitor
sensor may be deformed and the blind spot monitor sensor system may not
operate correctly, so visually inspect the blind spot monitor sensor installation
area (frame, stud bolt) to make sure it is not dented or bent.
Click here
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If the visual inspection finds a problem, check the installation condition of the blind spot monitor sensor, and adjust the installation position of the blind spot monitor sensor as necessary.
PROCEDURE
|
1. |
CHECK VEHICLE CONDITION |
(a) Check the condition of the rear bumper around the blind spot monitor sensors.
HINT:
When mud, snow, ice, a sticker, etc. is covering the sensor or its surrounding area on the rear bumper, the blind spot monitor sensor may store this DTC by mistake.
|
Result |
Proceed to |
|---|---|
|
A sticker, mud, snow, ice, etc. is covering the sensor or surrounding area on the rear bumper. |
A |
|
There are scratches or dents on the rear bumper around the sensors. |
B |
|
No abnormalities. |
| B | .gif) |
GO TO STEP 3 |
|
.gif)
|
2. |
PERFORM BEAM AXIS CONFIRMATION |
(a) Clean the rear bumper.
(b) Perform Blind Spot Monitor Beam Axis Confirmation using the Techstream.
Click here
|
Tester Display |
|---|
|
BSM Master Beam Axis Display |
|
Tester Display |
|---|
|
BSM Master Beam Axis Adjustment |
| OK | |
END |
| NG | |
REPLACE BLIND SPOT MONITOR SENSOR LH (MASTER) |
|
3. |
CHECK INSTALLATION CONDITION |
(a) Check the installation condition of the blind spot monitor sensor LH (Master).
Click here
HINT:
Take the appropriate action in accordance with the result.
|
|
4. |
PERFORM BEAM AXIS CONFIRMATION |
(a) Install the rear bumper.
Click here
(b) Perform Blind Spot Monitor Beam Axis Confirmation using the Techstream.
Click here
|
Tester Display |
|---|
|
BSM Master Beam Axis Display |
|
Tester Display |
|---|
|
BSM Master Beam Axis Adjustment |
| OK | |
END |
| NG | |
REPLACE BLIND SPOT MONITOR SENSOR LH (MASTER) |
Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when decidi ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Blind Spot Monitor System
DTC No.
Detection Item
Link
C1A45
Vehicle Speed Sensor
...
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Toyota CH-R Owners Manual
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