Clearance Sonar Main Switch Circuit

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Clearance Sonar Main Switch Circuit

Clearance Sonar Main Switch Circuit

DESCRIPTION

Turning this switch on activates the intuitive parking assist system.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT BACK SONAR SWITCH ASSEMBLY




(a) Remove the back sonar switch.
(b) Check the resistance.
Standard resistance:





(c) Reinstall the back sonar switch.
NG -- REPLACE BACK SONAR SWITCH ASSEMBLY
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (SWITCH - ECU, BATTERY AND BODY GROUND)




(a) Disconnect the E12 back sonar switch connector.
(b) Disconnect the E31 clearance warning ECU connector.
(c) Measure the voltage of the wire harness side connector.
Standard voltage:





(d) Check the resistance.
Standard resistance:





(e) Reconnect the switch connector.
(f) Reconnect the ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. CHECK CLEARANCE WARNING ECU ASSEMBLY




(a) Disconnect the E31 clearance warning ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:





(c) Reconnect the ECU connector.
OK -- REPLACE CLEARANCE WARNING ECU ASSEMBLY
NG -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE