Parking Assist Monitor System (W/ Side Monitor System) Guide Lines And Buttons Are Not Displayed For All Display Modes


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (BACK DOOR COURTESY SWITCH)

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

INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY

PARKING ASSIST MONITOR SYSTEM (w/ Side Monitor System) - Guide Lines and Buttons are not Displayed for All Display Modes


DESCRIPTION

The parking assist ECU receives back door courtesy light switch assembly open/close signals from the main body ECU via CAN communication. 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


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INSPECTION PROCEDURE

NOTICE:
  1. When "System initializing" is displayed on the navigation receiver assembly*1 or radio and display receiver assembly*2 after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point (LandCruiser RM0000035DD06LX.html).
  2. 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 parking assist monitor system may be needed (LandCruiser RM0000035DD06LX.html).
  1. *1: for Navigation Receiver Type
  2. *2: for Radio and Display Type
1.READ VALUE USING GTS (BACK DOOR COURTESY SWITCH)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Body / Main Body / Data List.

  1. Check the Data List for proper functioning of the following item.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Back Door Courtesy SW
    		Back door courtesy switch signal/ON or OFF
    		ON: Back door open
    OFF: Back door closed
    		-
    OK:
    The back door courtesy switch functions as specified in the normal condition column.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM0000035D7079X.html)

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

  1. Disconnect the G54 main body ECU connector.

  1. Disconnect the R9 back door courtesy light switch assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G54-19 (BCTY) - R9-1
    		Always
    		Below 1 Ω
    G54-19 (BCTY) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY

  1. Remove the back door courtesy light switch assembly (LandCruiser RM000003YNI01FX.html).

  1. Inspect the back door courtesy light switch assembly (LandCruiser RM000003YNG01DX.html).



NG
REPLACE BACK DOOR COURTESY LIGHT SWITCH ASSEMBLY (LandCruiser RM000003YNI01FX.html)
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LandCruiser RM000003WBO05FX.html)