- No. 1 ultrasonic sensor (front left sensor)
- Clearance warning ECU
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJA2 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE1; Front Left Sensor Malfunction; 2016 - 2020 MY Sienna [12/2015 - ] | ||
|
DTC |
C1AE1 |
Front Left Sensor Malfunction |
DESCRIPTION
The No. 1 ultrasonic sensor (front left sensor) is installed on the front bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (front left sensor). If the No. 1 ultrasonic sensor (front left sensor) has an open or other malfunction, it will not function normally.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1AE1 |
A malfunction of the No. 1 ultrasonic sensor (front left sensor). |
|
CAUTION / NOTICE / HINT
NOTICE:
If the DTC is output after repairs, turn the ignition switch to ON and move the shift lever to R. Then clear the DTC.
PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page
![2016 - 2020 MY Sienna [12/2015 - ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
(b) Check for DTCs (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
DTC C1AE1 is output |
A |
|
No DTC is output |
B |
| B |
|
USE SIMULATION METHOD TO CHECK (See page
|
|
|
2. |
REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT SENSOR) |
(a) Replace the No. 1 ultrasonic sensor (front left sensor) with a normally functioning sensor (See page
).
|
|
3. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page
).
(b) Check for DTCs (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
DTC C1AE1 is output |
A |
|
No DTC is output |
B |
| A |
|
REPLACE CLEARANCE WARNING ECU (See page
|
| B |
|
END (NO. 1 ULTRASONIC SENSOR (FRONT LEFT SENSOR) IS DEFECTIVE) |
|
|