| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000002D8AP |
| Model Year Start: 2024 | Model: GR Corolla | Prod Date Range: [08/2023 - ] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE987; Ultrasonic Sensor (Rear Right Corner) Missing Message; 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 - ] | ||
|
DTC |
C1AE987 |
Ultrasonic Sensor (Rear Right Corner) Missing Message |
DESCRIPTION
This DTC is stored when an open circuit or short occurs in the communication line between the rear corner ultrasonic sensor RH and the rear center ultrasonic sensor RH, or when a malfunction occurs in the rear corner ultrasonic sensor RH.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
Priority |
|---|---|---|---|---|---|
|
C1AE987 |
Ultrasonic Sensor (Rear Right Corner) Missing Message |
Rear corner ultrasonic sensor RH 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 C1AE896 is output at the same time, check C1AE896 first.
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PROCEDURE
|
1. |
CHECK DTC |
(a) If DTC C1AE896 is output, perform troubleshooting for DTC C1AE896 first.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C1AE896 is not output |
A |
|
C1AE896 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 rear corner ultrasonic sensor and rear 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 |
|---|---|
|
C1AE987 is not output |
A |
|
C1AE987 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 FOR DTC |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
C1AE687, C1AE787, C1AE887 and C1AE987 are output |
B |
|
C1AE787, C1AE887 and C1AE987 are output |
C |
|
C1AE887 and C1AE987 are output |
D |
|
C1AE987 is output |
E |
| A |
|
| B |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE687)) |
| C |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE787)) |
| D |
|
GO TO CORRESPONDING FLOWCHART (INTUITIVE PARKING ASSIST SYSTEM (C1AE887)) |
|
|
8. |
CHECK WIRE HARNESS AND CONNECTOR (REAR CENTER ULTRASONIC SENSOR RH - REAR CORNER ULTRASONIC SENSOR RH) |
Pre-procedure1
(a) Disconnect the P3 rear center ultrasonic sensor RH connector.
(b) Disconnect the P4 rear corner ultrasonic sensor RH connector.
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P3-1 (BO) - P4-4 (BI) |
Always |
Below 1 Ω |
|
P3-2 (SO) - P4-5 (SI) |
Always |
Below 1 Ω |
|
P3-3 (EO) - P4-6 (EI) |
Always |
Below 1 Ω |
|
P3-1 (BO) or P4-4 (BI) - Body ground |
Always |
10 kΩ or higher |
|
P3-2 (SO) or P4-5 (SI) - Body ground |
Always |
10 kΩ or higher |
|
P3-3 (EO) or P4-6 (EI) - Body ground |
Always |
10 kΩ or higher |
Post-procedure1
(d) None
| NG |
|
REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR |
|
|
9. |
REPLACE REAR CORNER ULTRASONIC SENSOR RH |
(a) Replace the rear corner ultrasonic sensor RH 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 |
|
C1AE987 is output |
B |
| A |
|
END (REAR CORNER ULTRASONIC SENSOR RH WAS DEFECTIVE) |
| B |
|
|
|