C1AED

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AED: Rear Sensor Communication Malfunction
C1AED - Rear Sensor Communication Malfunction

DESCRIPTION

This DTC is stored when there is an open or short circuit in the communication line between the rear sensors and the clearance warning ECU, or when there is a malfunction in a rear sensor.

DTC Combination Table

DTC Combination Table:

o: DTC is output

-: DTC is not output

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC OUTPUT

(a) Delete the DTCs Intuitive Parking Assist System.

(b) Turn the engine switch off.

(c) Turn the engine switch on (IG).

(d) Recheck for DTCs Intuitive Parking Assist System.

Result:

B -- USE SIMULATION METHOD TO CHECK
A -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - REAR RIGHT SENSOR)

(a) Disconnect the M2 ECU connector.

(b) Disconnect the S4 sensor connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

3. CHECK CLEARANCE WARNING ECU ASSEMBLY

(a) Reconnect the M2 ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPLACE CLEARANCE WARNING ECU ASSEMBLY Removal
OK -- Continue to next step.

4. REPLACE NO. 1 ULTRASONIC SENSOR (REAR RIGHT SENSOR)

(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.

NEXT -- Continue to next step.

5. CHECK DTC OUTPUT

(a) Delete the DTCs Intuitive Parking Assist System.

(b) Recheck for DTCs Intuitive Parking Assist System.

Result:

B -- END
A -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (REAR RIGHT SENSOR - REAR RIGHT CENTER SENSOR)

(a) Disconnect the S4 and S2 sensor connectors.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. REPLACE NO. 1 ULTRASONIC SENSOR (REAR RIGHT CENTER SENSOR)

(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.

NEXT -- Continue to next step.

8. CHECK DTC OUTPUT

(a) Delete the DTCs Intuitive Parking Assist System.

(b) Recheck for DTCs Intuitive Parking Assist System.

Result:

B -- END
A -- Continue to next step.

9. CHECK HARNESS AND CONNECTOR (REAR RIGHT CENTER SENSOR - REAR LEFT CENTER SENSOR)

(a) Disconnect the S2 and S1 sensor connectors.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

10. REPLACE NO. 1 ULTRASONIC SENSOR (REAR LEFT CENTER SENSOR)

(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.

NEXT -- Continue to next step.

11. CHECK DTC OUTPUT

(a) Delete the DTCs Intuitive Parking Assist System.

(b) Recheck for DTCs Intuitive Parking Assist System.

Result:

B -- END
A -- Continue to next step.

12. CHECK HARNESS AND CONNECTOR (REAR LEFT CENTER SENSOR - REAR LEFT SENSOR)

(a) Disconnect the S1 and S3 sensor connectors.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

13. REPLACE NO. 1 ULTRASONIC SENSOR (REAR LEFT SENSOR)

(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.

NEXT -- Continue to next step.

14. CHECK DTC OUTPUT

(a) Delete the DTCs Intuitive Parking Assist System.

(b) Recheck for DTCs Intuitive Parking Assist System.

Result:

B -- END

A -- REPLACE CLEARANCE WARNING ECU ASSEMBLY Removal