C1AEE

PARK ASSIST / MONITORING: ADVANCED PARKING GUIDANCE SYSTEM: C1AEE: APGS Sensor Communication Circuit
C1AEE - APGS Sensor Communication Circuit

DESCRIPTION

The parking assist ECU communicates with the No. 1 ultrasonic sensor (for LH side), and the No. 1 ultrasonic sensor (for RH side) via the No. 1 ultrasonic sensor (for LH side). This DTC is stored when the parking assist ECU judges that there is an abnormality in the communication circuit to the No. 1 ultrasonic sensor (for LH side) or the No. 1 ultrasonic sensor (for RH side) that is connected via the for LH side sensor, immediately after the power switch is turned on (READY), or while the sensors are operating (neither park (P) nor reverse (R) is selected and the vehicle is not stopped).





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When the "System initializing" message is displayed on the navigation computer sub-assembly after the auxiliary battery cable has been disconnected, correct the steering angle neutral point Initialization.
* Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the advanced parking guidance system may be needed Calibration.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - NO. 1 ULTRASONIC SENSOR (for LH SIDE))

(a) Disconnect the L65 connector from the parking assist ECU.

(b) Disconnect the C2 connector from the No. 1 ultrasonic sensor (for LH side).

(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.

2. CHECK NO. 1 ULTRASONIC SENSOR (for LH SIDE)

(a) Remove the No. 1 ultrasonic sensor (for LH side) Removal.

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





Standard Resistance:





Text in Illustration





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

3. CHECK HARNESS AND CONNEC (NO. 1 ULTRASONIC SENSOR (for LH SIDE) - NO. 1 ULTRASONIC SENSOR (for RH SIDE))

(a) Disconnect the C2 connector from the No. 1 ultrasonic sensor (for LH side).

(b) Disconnect the C1 connector from the No. 1 ultrasonic sensor (for RH side).

(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. REPLACE NO. 1 ULTRASONIC SENSOR (for LH SIDE) C1AE0

NEXT -- Continue to next step.

5. CHECK DTC OUTPUT

(a) Clear the DTCs Advanced Parking Guidance System.

(b) Check for DTCs Advanced Parking Guidance System.

Result:





B -- END (for LH SIDE SENSOR WAS DEFECTIVE)
A -- Continue to next step.

6. REPLACE NO. 1 ULTRASONIC SENSOR (for RH SIDE) C1AE5

NEXT -- Continue to next step.

7. CHECK DTC OUTPUT

(a) Clear the DTCs Advanced Parking Guidance System.

(b) Check for DTCs Advanced Parking Guidance System.

Result:





B -- END (for RH SIDE SENSOR WAS DEFECTIVE)

A -- REPLACE PARKING ASSIST ECU Removal