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 DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.
2. INSPECT CLEARANCE WARNING ECU
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- REPLACE CLEARANCE WARNING ECU Removal
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (NO. 1 ULTRASONIC SENSOR LH - CLEARANCE WARNING ECU)
(a) Disconnect the A41 No. 1 ultrasonic sensor LH connector.
(b) Disconnect the D77 clearance warning ECU 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 (NO. 1 ULTRASONIC SENSOR LH - NO. 1 ULTRASONIC SENSOR RH)
(a) Disconnect the A40 No. 1 ultrasonic sensor RH and A41 No. 1 ultrasonic sensor LH 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 DTC OUTPUT
(a) Clear the DTCs Intuitive Parking Assist System.
(b) Check for DTCs Intuitive Parking Assist System.
Result
B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.
6. REPLACE NO. 1 ULTRASONIC SENSOR LH
(a) Replace the No. 1 ultrasonic sensor LH with a normally functioning sensor Removal.
NEXT -- 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 -- END (NO. 1 ULTRASONIC SENSOR LH IS DEFECTIVE)
A -- Continue to next step.
8. REPLACE NO. 1 ULTRASONIC SENSOR RH
(a) Replace the No. 1 ultrasonic sensor RH with a normally functioning sensor Removal.
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 -- END (NO. 1 ULTRASONIC SENSOR RH IS DEFECTIVE)
A -- REPLACE CLEARANCE WARNING ECU Removal