| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001FXSV |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - 10/2023] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model with Parking Support Brake System): C1AE387; Ultrasonic Sensor (Front Right Center) Missing Message; 2019 - 2023 MY RAV4 [11/2018 - 10/2023] | ||
|
DTC |
C1AE387 |
Ultrasonic Sensor (Front Right Center) Missing Message |
DESCRIPTION
This DTC is output when an open circuit or short occurs in the communication line between a front center ultrasonic sensor (FRC sensor) and the front center ultrasonic sensor (FLC sensor), or when a malfunction occurs in a front center ultrasonic sensor (FRC sensor) on the front.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AE387 |
Ultrasonic Sensor (Front Right Center) Missing Message |
Front center ultrasonic sensor (FRC sensor) lost communication |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.
Click here
![2019 - 2024 MY RAV4 [11/2018 - ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model with Parking Support Brake System): CALIBRATION](/t3Portal/stylegraphics/info.gif)
-
If a DTC is detected again after the repair, turn the engine switch on (IG) and turn the intuitive parking assist system on, and then clear the DTC.
Click here
-
If C1AE296 is output at the same time, check C1AE296 first.
Click here
PROCEDURE
|
1. |
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 |
|
GO TO CALIBRATION
|
|
|
2. |
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.
|
|
3. |
CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
|
|
4. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
C1AE387 is not output |
A |
|
C1AE387 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) Recheck for DTCs.
Click here
Body Electrical > Clearance Warning > Trouble Codes
DTC OUTPUT COMBINATION:
|
Symptoms |
DTC Detection |
|||
|---|---|---|---|---|
|
C1AE187 |
C1AE287 |
C1AE387 |
C1AE487 |
|
|
Symptom 1 |
Not output |
Not output |
Not output |
Not output |
|
Symptom 2 |
Not output |
Not output |
Not output |
Output |
|
Symptom 3 |
Not output |
Not output |
Output |
Output |
|
Symptom 4 |
Not output |
Output |
Output |
Output |
|
Symptom 5 |
Output |
Output |
Output |
Output |
|
Result |
Proceed to |
|---|---|
|
Listed under symptom 1 in combination table |
A |
|
Listed under symptom 2 in combination table |
B |
|
Listed under symptom 3 in combination table |
C |
|
Listed under symptom 4 in combination table |
D |
|
Listed under symptom 5 in combination table |
E |
|
Only C1AE387 is output |
F |
| A |
|
| B |
|
| D |
|
| E |
|
| F |
|
|
|
8. |
CHECK HARNESS AND CONNECTOR (FRONT CENTER ULTRASONIC SENSOR [FLC SENSOR] - FRONT CENTER ULTRASONIC SENSOR [FRC SENSOR]) |
(a) Disconnect the B4 front center ultrasonic sensor (FLC sensor) connector.
(b) Disconnect the B3 front center ultrasonic sensor (FRC sensor) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
B4-1 (BO) - B3-4 (BI) |
Always |
Below 1 Ω |
|
B4-2 (SO) - B3-5 (SI) |
Always |
Below 1 Ω |
|
B4-3 (EO) - B3-6 (EI) |
Always |
Below 1 Ω |
|
B4-1 (BO) or B3-4 (BI) - Body ground |
Always |
10 kΩ or higher |
|
B4-2 (SO) or B3-5 (SI) - Body ground |
Always |
10 kΩ or higher |
|
B4-3 (EO) or B3-6 (EI) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
9. |
REPLACE FRONT CENTER ULTRASONIC SENSOR (FRC SENSOR) |
(a) Replace the front center ultrasonic sensor (FRC sensor) with a known good one.
Click here
HINT:
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.
|
|
10. |
CHECK FOR DTC |
(a) Check for DTCs.
Click here
Body Electrical > Clearance Warning > Trouble Codes
(b) Clear the DTCs.
Click here
Body Electrical > Clearance Warning > Clear DTCs
(c) Recheck for DTCs.
Click here
Body Electrical > Clearance Warning > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC C1AE387 is not output |
A |
|
DTC C1AE387 is output |
B |
| A |
|
END (FRONT CENTER ULTRASONIC SENSOR [FRC SENSOR] WAS DEFECTIVE) |
| B |
|
REPLACE CLEARANCE WARNING ECU ASSEMBLY
|
|
|