Intuitive Parking Assist System

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AEE: APGS Sensor Communication Circuit

DTC C1AEE - APGS Sensor Communication Circuit

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 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
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
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT SIDE SENSOR LH)




(a) Disconnect the L90 ECU connector.
(b) Disconnect the D1 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 SIDE SENSOR LH - FRONT SIDE SENSOR RH)




(a) Disconnect the D1 and D5 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 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
A -- Continue to next step.
6. REPLACE FRONT SIDE NO. 2 ULTRASONIC SENSOR LH




(a) Replace the ultrasonic sensor 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 (ULTRASONIC SENSOR IS DEFECTIVE)
A -- Continue to next step.
8. REPLACE FRONT SIDE NO. 2 ULTRASONIC SENSOR RH




(a) Replace the ultrasonic sensor 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





C -- END (ULTRASONIC SENSOR IS DEFECTIVE)
B -- GO TO DTC C1AEC
A -- REPLACE PARKING ASSIST ECU