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 ECU, or when there is a malfunction in a rear sensor.





- *1: w/o Side Monitor System

- *2: w/ Side Monitor System

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Recheck for DTCs Intuitive Parking Assist System.

Result





C -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

B -- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR CORNER SENSOR LH)
A -- Continue to next step.

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

(a) Disconnect the I1 clearance warning ECU connector.

(b) Disconnect the V2 No. 1 ultrasonic sensor (rear corner sensor LH) 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 HARNESS AND CONNECTOR (REAR CORNER SENSOR LH - REAR CENTER SENSOR LH)

(a) Disconnect the V2 No. 1 ultrasonic sensor (rear corner sensor LH) connector.

(b) Disconnect the V1 No. 1 ultrasonic sensor (rear center sensor LH) 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.

4. CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR LH - REAR CENTER SENSOR RH)

(a) Disconnect the V1 No. 1 ultrasonic sensor (rear center sensor LH) connector.

(b) Disconnect the U1 No. 1 ultrasonic sensor (rear center sensor RH) 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.

5. CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - REAR CORNER SENSOR RH)

(a) Disconnect the U1 No. 1 ultrasonic sensor (rear center sensor RH) connector.

(b) Disconnect the U2 No. 1 ultrasonic sensor (rear corner sensor RH) 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.

6. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

(a) Remove the No. 1 ultrasonic sensor (rear corner sensor LH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH) Removal
OK -- Continue to next step.

7. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH)

(a) Remove the No. 1 ultrasonic sensor (rear center sensor LH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH) Removal
OK -- Continue to next step.

8. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

(a) Remove the No. 1 ultrasonic sensor (rear center sensor RH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH) Removal
OK -- Continue to next step.

9. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)

(a) Replace the No. 1 ultrasonic sensor (rear corner sensor RH) with a normally functioning sensor Removal.

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 -- Continue to next step.

10. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CORNER SENSOR RH] WAS DEFECTIVE)
A -- Continue to next step.

11. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH)

(a) Replace the No. 1 ultrasonic sensor (rear center sensor LH) with a normally functioning sensor Removal.

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 -- Continue to next step.

12. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CENTER SENSOR LH] WAS DEFECTIVE)
A -- Continue to next step.

13. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

(a) Replace the No. 1 ultrasonic sensor (rear center sensor RH) with a normally functioning sensor Removal.

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 -- Continue to next step.

14. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CENTER SENSOR RH] WAS DEFECTIVE)
A -- Continue to next step.

15. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

(a) Replace the No. 1 ultrasonic sensor (rear corner sensor LH) with a normally functioning sensor Removal.

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 -- Continue to next step.

16. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CORNER SENSOR LH] WAS DEFECTIVE)

A -- REPLACE CLEARANCE WARNING ECU Removal

17. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR CORNER SENSOR LH)

(a) Disconnect the I2 parking assist ECU connector.

(b) Disconnect the V2 No. 1 ultrasonic sensor (rear corner sensor LH) 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.

18. CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR LH - REAR CENTER SENSOR LH)

(a) Disconnect the V2 No. 1 ultrasonic sensor (rear corner sensor LH) connector.

(b) Disconnect the V1 No. 1 ultrasonic sensor (rear center sensor LH) 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.

19. CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR LH - REAR CENTER SENSOR RH)

(a) Disconnect the V1 No. 1 ultrasonic sensor (rear center sensor LH) connector.

(b) Disconnect the U1 No. 1 ultrasonic sensor (rear center sensor RH) 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.

20. CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - REAR CORNER SENSOR RH)

(a) Disconnect the U1 No. 1 ultrasonic sensor (rear center sensor RH) connector.

(b) Disconnect the U2 No. 1 ultrasonic sensor (rear corner sensor RH) 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.

21. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

(a) Remove the No. 1 ultrasonic sensor (rear corner sensor LH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH) Removal
OK -- Continue to next step.

22. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH)

(a) Remove the No. 1 ultrasonic sensor (rear center sensor LH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH) Removal
OK -- Continue to next step.

23. INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

(a) Remove the No. 1 ultrasonic sensor (rear center sensor RH) Removal.





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

Standard Resistance:





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH) Removal
OK -- Continue to next step.

24. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)

(a) Replace the No. 1 ultrasonic sensor (rear corner sensor RH) with a normally functioning sensor Removal.

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 -- Continue to next step.

25. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CORNER SENSOR RH] WAS DEFECTIVE)
A -- Continue to next step.

26. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH)

(a) Replace the No. 1 ultrasonic sensor (rear center sensor LH) with a normally functioning sensor Removal.

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 -- Continue to next step.

27. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CENTER SENSOR LH] WAS DEFECTIVE)
A -- Continue to next step.

28. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)

(a) Replace the No. 1 ultrasonic sensor (rear center sensor RH) with a normally functioning sensor Removal.

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 -- Continue to next step.

29. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CENTER SENSOR RH] WAS DEFECTIVE)
A -- Continue to next step.

30. REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR LH)

(a) Replace the No. 1 ultrasonic sensor (rear corner sensor LH) with a normally functioning sensor Removal.

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 -- Continue to next step.

31. CHECK FOR DTC (C1AED)

(a) Clear the DTCs Intuitive Parking Assist System.

(b) Check for DTCs Intuitive Parking Assist System.

Result





B -- END (NO. 1 ULTRASONIC SENSOR [REAR CENTER SENSOR LH] WAS DEFECTIVE)

A -- REPLACE PARKING ASSIST ECU Removal