Back Door Courtesy Switch Circuit

PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM (w/o Side Monitor System): Back Door Courtesy Switch Circuit
- Back Door Courtesy Switch Circuit

DESCRIPTION

The display and navigation module display*1 or accessory meter assembly*2 receives back door courtesy light switch assembly open/close signals from the main body ECU via CAN communication*1 or LIN communication*2. When the back door is open, the camera aiming cannot be adjusted correctly because the rear television camera assembly is installed on the back door.

Therefore, when adjusting the camera aiming calibration while the back door is open, a back door open warning message will be displayed on the screen and camera aiming adjustment will be canceled.

HINT
The back door courtesy light switch assembly is connected to the main body ECU by the vehicle wire harness.

WIRING DIAGRAM









INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (BACK DOOR COURTESY LIGHT SWITCH)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Check the Data List for proper functioning of the following item.

Main Body





OK:

The back door courtesy switch functions as specified in the normal condition column.

NG -- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR COURTESY LIGHT SWITCH)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BACK DOOR COURTESY LIGHT SWITCH)

(a) Disconnect the G47 main body ECU connector.

(b) Disconnect the R11 back door courtesy light switch connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

3. INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY

(a) Remove the back door courtesy light switch Removal.





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

Standard Resistance:





NG -- REPLACE BACK DOOR COURTESY LIGHT SWITCH Removal

OK -- REPLACE MAIN BODY ECU Removal