Toyota Corolla Cross: Ultrasonic Sensor (Rear Left Center) Component Internal Failure (C1AE796)
DESCRIPTION
The rear center ultrasonic sensor (RLC sensor) is installed on the rear bumper. The clearance warning ECU assembly detects obstacles based on signals it receives from the rear center ultrasonic sensor (RLC sensor). If an open circuit or other malfunction occurs in the rear center ultrasonic sensor (RLC sensor), the rear center ultrasonic sensor (RLC sensor) does not operate correctly.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AE796 |
Ultrasonic Sensor (Rear Left Center) Component Internal Failure |
Rear center ultrasonic sensor (RLC sensor) failure |
|
CAUTION / NOTICE / HINT
NOTICE:
- Perform registration after replacing or removing and installing the
ultrasonic sensor or clearance warning ECU assembly.
Click here
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- If a DTC is detected again after the repair, turn the ignition switch to ON and turn the intuitive parking assist system on, and then clear the DTC.
PROCEDURE
|
1. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
|
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|
2. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
C1AE796 and C1AE787 are output |
B |
|
C1AE796 is output |
C |
|
None of the above conditions are met |
D |
| A | .gif)
|
USE SIMULATION METHOD TO CHECK |
| B |
|
GO TO DTC (C1AE787)
|
| D |
|
GO TO DTC CHART
|
|
|
3. |
REPLACE REAR CENTER ULTRASONIC SENSOR (RLC SENSOR) |
(a) Replace the rear center ultrasonic sensor (RLC sensor) with a known good one.
HINT:
- Click here
- All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.
|
|
4. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
|
|
5. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
C1AE796 is output |
B |
|
None of the above conditions are met |
C |
| A |
|
END (REAR CENTER ULTRASONIC SENSOR [RLC SENSOR] WAS DEFECTIVE) |
| B |
|
REPLACE CLEARANCE WARNING ECU ASSEMBLY
|
| C |
|
GO TO DTC CHART
|
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DESCRIPTION
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DESCRIPTION
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DESCRIPTION
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DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH (A)
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DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C1AB704
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Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2
