Last Modified: 01-30-2024 |
6.11:8.1.0 |
Doc ID: RM100000002GAJT |
Model Year Start: 2024 |
Model: RAV4 |
Prod Date Range: [10/2023 -
] |
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model with Parking Support Brake System): C1AE787; Ultrasonic Sensor (Rear Left Center) Missing Message; 2024 MY RAV4 [10/2023 - ] |
DTC
|
C1AE787
|
Ultrasonic Sensor (Rear Left Center) Missing Message
|
DESCRIPTION
This DTC is output when an open circuit or short occurs in the communication line between a rear center ultrasonic sensor (RLC sensor) and the rear corner ultrasonic sensor (RL sensor), or when a malfunction occurs in a rear center ultrasonic sensor (RLC sensor) on the rear.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
C1AE787
|
Ultrasonic Sensor (Rear Left Center) Missing Message
|
Rear center ultrasonic sensor (RLC sensor) lost communication
|
-
Rear center ultrasonic sensor (RLC sensor)
-
Harness or connector
-
Clearance warning ECU assembly
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.
Click here
-
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 C1AE696 is output at the same time, check C1AE696 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
|
A
|
|
|
2.
|
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.
NEXT
|
|
|
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
NEXT
|
|
|
(a) Check for DTCs.
Body Electrical > Clearance Warning > Trouble Codes
Result
|
Proceed to
|
C1AE787 is not output
|
A
|
C1AE787 is output
|
B
|
A |
|
END (CONNECTOR CONNECTION MALFUNCTION)
|
B
|
|
|
5.
|
CHECK CONNECTOR CONNECTION CONDITION (CLEARANCE WARNING ECU ASSEMBLY)
|
(a) Check that the connector is properly connected to the clearance warning ECU assembly.
NEXT
|
|
|
(a) Clear the DTCs.
Body Electrical > Clearance Warning > Clear DTCs
NEXT
|
|
|
(a) Recheck for DTCs.
Click here
Body Electrical > Clearance Warning > Trouble Codes
DTC OUTPUT COMBINATION:
Symptoms
|
DTC Detection
|
C1AE687
|
C1AE787
|
C1AE887
|
C1AE987
|
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 C1AE787 is output
|
F
|
D
|
|
|
8.
|
CHECK HARNESS AND CONNECTOR (REAR CORNER ULTRASONIC SENSOR [RL SENSOR] - REAR CENTER ULTRASONIC SENSOR [RLC SENSOR])
|
-
*1: for TMMC Made
-
*2: for TMC Made
(a) Disconnect the Q6*1 or Q18*2 rear corner ultrasonic sensor (RL sensor) connector.
(b) Disconnect the Q5*1 or Q19*2 rear center ultrasonic sensor (RLC sensor) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for TMMC Made:
Tester Connection
|
Condition
|
Specified Condition
|
Q6-1 (BO) - Q5-4 (BI)
|
Always
|
Below 1 Ω
|
Q6-2 (SO) - Q5-5 (SI)
|
Always
|
Below 1 Ω
|
Q6-3 (EO) - Q5-6 (EI)
|
Always
|
Below 1 Ω
|
Q6-1 (BO) or Q5-4 (BI) - Body ground
|
Always
|
10 kΩ or higher
|
Q6-2 (SO) or Q5-5 (SI) - Body ground
|
Always
|
10 kΩ or higher
|
Q6-3 (EO) or Q5-6 (EI) - Body ground
|
Always
|
10 kΩ or higher
|
for TMC Made:
Tester Connection
|
Condition
|
Specified Condition
|
Q18-1 (BO) - Q19-4 (BI)
|
Always
|
Below 1 Ω
|
Q18-2 (SO) - Q19-5 (SI)
|
Always
|
Below 1 Ω
|
Q18-3 (EO) - Q19-6 (EI)
|
Always
|
Below 1 Ω
|
Q18-1 (BO) or Q19-4 (BI) - Body ground
|
Always
|
10 kΩ or higher
|
Q18-2 (SO) or Q19-5 (SI) - Body ground
|
Always
|
10 kΩ or higher
|
Q18-3 (EO) or Q19-6 (EI) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
9.
|
REPLACE REAR CENTER ULTRASONIC SENSOR (RLC SENSOR)
|
(a) Replace the rear center ultrasonic sensor (RLC 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.
NEXT
|
|
|
(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 C1AE787 is not output
|
A
|
DTC C1AE787 is output
|
B
|
A |
|
END (REAR CENTER ULTRASONIC SENSOR [RLC SENSOR] WAS DEFECTIVE)
|
|