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 ECU, or when there is a malfunction in a rear sensor.
HINT
*1: w/o Advanced parking guidance system
*2: w/ Advanced parking guidance system
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- CHECK PARKING ASSIST ECU
C -- END
A -- Continue to next step.
2. CHECK CLEARANCE WARNING ECU
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE CLEARANCE WARNING ECU Removal
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - REAR RIGHT CORNER SENSOR)
(a) Disconnect the L19 ECU connector.
(b) Disconnect the Z4 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.
4. CHECK HARNESS AND CONNECTOR (REAR RIGHT CORNER SENSOR - REAR RIGHT CENTER SENSOR)
(a) Disconnect the Z4 and Z3 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.
5. CHECK HARNESS AND CONNECTOR (REAR RIGHT CENTER SENSOR - REAR LEFT CENTER SENSOR)
(a) Disconnect the Z3 and Z2 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.
6. CHECK HARNESS AND CONNECTOR (REAR LEFT CENTER SENSOR - REAR LEFT CORNER SENSOR)
(a) Disconnect the Z2 and Z1 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. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR RIGHT CENTER SENSOR)
C -- END
A -- Continue to next step.
8. REPLACE NO. 1 ULTRASONIC SENSOR (REAR RIGHT CORNER SENSOR)
(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.
NEXT -- Continue to next step.
9. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR RIGHT CENTER SENSOR)
C -- END
A -- Continue to next step.
10. REPLACE NO. 1 ULTRASONIC SENSOR (REAR LEFT CORNER SENSOR)
(a) Replace the ultrasonic sensor Removal with a normally functioning sensor.
NEXT -- Continue to next step.
11. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- REPLACE CLEARANCE WARNING ECU Removal
C -- REPLACE PARKING ASSIST ECU Removal
D -- END
A -- Continue to next step.
12. 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.
13. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- END
A -- Continue to next step.
14. 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.
15. CHECK DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- REPLACE PARKING ASSIST ECU Removal
C -- END
A -- REPLACE CLEARANCE WARNING ECU Removal
16. CHECK PARKING ASSIST ECU
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPLACE PARKING ASSIST ECU Removal
OK -- Continue to next step.
17. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR RIGHT CORNER SENSOR)
(a) Disconnect the L91 ECU connector.
(b) Disconnect the Z4 sensor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
OK -- CHECK HARNESS AND CONNECTOR (REAR RIGHT CORNER SENSOR - REAR RIGHT CENTER SENSOR)
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR