DESCRIPTION
This DTC is stored when the angle of the blind spot monitor sensor RH deviates more than the allowable range from the horizontal axis.
HINT:
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1AC2 | Slave 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 RH |
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
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 | ![]() | GO TO STEP 3 |
|
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 Slave Beam Axis Display |
Tester Display |
---|
BSM Slave Beam Axis Adjustment |
OK | ![]() | END |
NG | ![]() | REPLACE BLIND SPOT MONITOR SENSOR RH |
3. | CHECK INSTALLATION CONDITION |
(a) Check the installation condition of the blind spot monitor sensor RH.
Click here
HINT:
Take the appropriate action in accordance with the result.
|
4. | PERFORM BEAM AXIS CONFIRMATION |
(a) Install the rear bumper.
REAR BUMPER (w/o Rear No. 2 Seat): Click here
REAR BUMPER (w/ Rear No. 2 Seat): Click here
(b) Perform Blind Spot Monitor Beam Axis Confirmation using the Techstream.
Click here
Tester Display |
---|
BSM Slave Beam Axis Display |
Tester Display |
---|
BSM Slave Beam Axis Adjustment |
OK | ![]() | END |
NG | ![]() | REPLACE BLIND SPOT MONITOR SENSOR RH |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Blind Spot Monitor System: Short to +B in Buzzer (C1ABD,C1ABE)
DESCRIPTION
DTC C1ABD is stored when the blind spot monitor sensor RH detects a short to +B in the RCTA buzzer (blind spot monitor buzzer) circuit.
DTC C1ABE is stored when the blind spot monitor sensor RH detects a short to ground or open in the RCTA buzzer (blind spot monitor buzzer) circuit. ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Shift Lever: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. SECURE VEHICLE (a) Fully apply the parking brake and chock a wheel. CAUTION:
Make sure to apply the parking brake and chock a wheel before performing this procedure.
If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, ...