C1AEC
PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AEC: Front Sensor Communication Malfunction
C1AEC - Front Sensor Communication Malfunction
DESCRIPTION
This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
C -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure
B -- GO TO DTC C1AEE C1AEE
A -- Continue to next step.
2. 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.
3. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT CORNER SENSOR LH)
(a) Disconnect the L91 ECU connector.
(b) Disconnect the D2 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 (FRONT CORNER SENSOR LH - FRONT CENTER SENSOR LH)
(a) Disconnect the D2 and D3 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 (FRONT CENTER SENSOR LH - FRONT CENTER SENSOR RH)
(a) Disconnect the D3 and D4 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 (FRONT CENTER SENSOR RH - FRONT CORNER SENSOR RH)
(a) Disconnect the D4 and D6 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 FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
C -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure
B -- REPLACE FRONT CENTER NO. 1 ULTRASONIC SENSOR LH
A -- Continue to next step.
8. REPLACE FRONT CORNER NO. 1 ULTRASONIC SENSOR LH
(a) Replace the ultrasonic sensor with a normally functioning sensor Removal.
NEXT -- Continue to next step.
9. CHECK FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
C -- END (ULTRASONIC SENSOR IS DEFECTIVE)
B -- REPLACE FRONT CENTER NO. 1 ULTRASONIC SENSOR LH
A -- Continue to next step.
10. REPLACE FRONT CORNER NO. 1 ULTRASONIC SENSOR RH
(a) Replace the ultrasonic sensor with a normally functioning sensor Removal.
NEXT -- Continue to next step.
11. CHECK FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
C -- END (ULTRASONIC SENSOR IS DEFECTIVE)
B -- REPLACE PARKING ASSIST ECU Removal
A -- Continue to next step.
12. REPLACE FRONT CENTER NO. 1 ULTRASONIC SENSOR LH
(a) Replace the ultrasonic sensor with a normally functioning sensor Removal.
NEXT -- Continue to next step.
13. CHECK FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- END (ULTRASONIC SENSOR IS DEFECTIVE)
A -- Continue to next step.
14. REPLACE FRONT CENTER NO. 1 ULTRASONIC SENSOR RH
(a) Replace the ultrasonic sensor with a normally functioning sensor Removal.
NEXT -- Continue to next step.
15. CHECK FOR DTC
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- END (ULTRASONIC SENSOR IS DEFECTIVE)
A -- REPLACE PARKING ASSIST ECU Removal