| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000002D8AD |
| Model Year Start: 2024 | Model: GR Corolla | Prod Date Range: [08/2023 - ] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE287; Ultrasonic Sensor (Front Left Center) Missing Message; 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 - ] | ||
|
DTC |
C1AE287 |
Ultrasonic Sensor (Front Left Center) Missing Message |
DESCRIPTION
This DTC is stored when an open circuit or short occurs in the communication line between the front center ultrasonic sensor LH and the front corner ultrasonic sensor LH, or when a malfunction occurs in the front center ultrasonic sensor LH.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Priority |
|---|---|---|---|---|---|
|
C1AE287 |
Ultrasonic Sensor (Front Left Center) Missing Message |
Front center ultrasonic sensor LH lost communication |
|
Clearance Warning |
B |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.
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![2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 - ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: CALIBRATION](/t3Portal/stylegraphics/info.gif)
- 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.
-
If C1AE196 is output at the same time, check C1AE196 first.
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PROCEDURE
|
1. |
CHECK DTC |
(a) If DTC C1AE196 is output, perform troubleshooting for DTC C1AE196 first.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C1AE196 is not output |
A |
|
C1AE196 is output |
B |
| B |
|
|
|
2. |
VEHICLE CONDITION AND WORK DETAILS CHECK |
(a) Check the vehicle condition and work details.
|
Result |
Proceed to |
|---|---|
|
The clearance warning ECU assembly or ultrasonic sensor has not been replaced |
A |
|
The clearance warning ECU assembly or ultrasonic sensor has been replaced |
B |
| B |
|
|
|
3. |
CHECK CONNECTOR CONNECTION CONDITION (ULTRASONIC SENSOR) |
(a) Check that the connector is properly connected to the front corner ultrasonic sensor and front center ultrasonic sensor.
|
|
4. |
CHECK FOR DTC |
(a) According to the display on the GTS, check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
(b) According to the display on the GTS, clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
(c) Recheck for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C1AE287 is not output |
A |
|
C1AE287 is output |
B |
| A |
|
END (CONNECTOR CONNECTION MALFUNCTION) |
|
|
5. |
CHECK CONNECTOR CONNECTION CONDITION (CLEARANCE WARNING ECU ASSEMBLY) |
(a) Check that the connector is properly connected to the clearance warning ECU assembly.
|
|
6. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
|
|
7. |
CHECK DTC OUTPUT |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
C1AE187, C1AE287, C1AE387 and C1AE487 are output |
B |
|
C1AE287, C1AE387 and C1AE487 are output |
C |
|
C1AE387 and C1AE487 are output |
D |
|
C1AE487 is output |
E |
|
C1AE287 is output |
F |
| A |
|
| B |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE187)) |
| D |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE387)) |
| E |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE487)) |
| F |
|
|
|
8. |
CHECK WIRE HARNESS AND CONNECTOR (FRONT CENTER ULTRASONIC SENSOR LH - FRONT CORNER ULTRASONIC SENSOR LH) |
Pre-procedure1
(a) Disconnect the B1 front corner ultrasonic sensor LH connector.
(b) Disconnect the B2 front center ultrasonic sensor LH connector.
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
B1-1 (BO) - B2-4 (BI) |
Always |
Below 1 Ω |
|
B1-2 (SO) - B2-5 (SI) |
Always |
Below 1 Ω |
|
B1-3 (EO) - B2-6 (EI) |
Always |
Below 1 Ω |
|
B1-1 (BO) or B2-4 (BI) - Body ground |
Always |
10 kΩ or higher |
|
B1-2 (SO) or B2-5 (SI) - Body ground |
Always |
10 kΩ or higher |
|
B1-3 (EO) or B2-6 (EI) - Body ground |
Always |
10 kΩ or higher |
Post-procedure1
(d) None
| NG |
|
REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR |
|
|
9. |
REPLACE FRONT CENTER ULTRASONIC SENSOR LH |
(a) Replace the front center ultrasonic sensor LH with a new or normally functioning one.
HINT:
-
Click here
- To check if the ultrasonic sensor is functioning correctly, replace it with another ultrasonic sensor.
|
|
10. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
|
|
11. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
C1AE287 is output |
B |
| A |
|
END (FRONT CENTER ULTRASONIC SENSOR LH WAS DEFECTIVE) |
| B |
|
|
|