Parking Assist Monitor System (W/ Side Monitor System) Back Door Is Open Is Displayed Even After Back Door Is Closed

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Park Assist Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (BACK DOOR COURTESY SWITCH)

CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND)

INSPECT BACK DOOR LOCK ASSEMBLY

PARKING ASSIST MONITOR SYSTEM (w/ Side Monitor System) - "Back Door is Open" is Displayed even after Back Door is Closed


DESCRIPTION

The parking assist ECU receives back door lock assembly open/close signals from the main body ECU (cowl side junction block LH) 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:
  1. The back door lock assembly is connected to the main body ECU (cowl side junction block LH) by the vehicle wire harness.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Park Assist Monitoring.Toyota Parking Assist-Sensor System.Parking Assist Monitor System (W/ Side Monitor System) Back Door Is Open Is Displayed Even After Back Door Is Closed


INSPECTION PROCEDURE

NOTICE:
  1. When "System initializing" is displayed on the parking assist ECU after the battery terminal disconnected, correct the steering angle neutral point (Click here).
  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 (w/ Side Monitor System) may be needed (Click here).
1.READ VALUE USING INTELLIGENT TESTER (BACK DOOR COURTESY SWITCH)

  1. Use the Data List to check if the back door courtesy switch is functioning properly (Click here).

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Back Door Courtesy SW
    		Back door courtesy light 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

REPLACE PARKING ASSIST ECU (Click here)

2.CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH] AND BODY GROUND)

  1. Disconnect the S1*1 or S22*2 back door lock assembly connector.

    1. *1: w/o Power Back Door System
    2. *2: w/ Power Back Door System

  1. Disconnect the E2 main body ECU (cowl side junction block LH) connector.

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

    Standard Resistance:
    w/o Power Back Door System:
    Tester Connection
    		Condition
    		Specified Condition
    S1-3 (+) - E2-25 (BCTY)
    		Always
    		Below 1 Ω
    S1-3 (+) - Body ground
    		Always
    		10 kΩ or higher
    S1-1 (ACT-) - Body ground
    		Always
    		Below 1 Ω
    w/ Power Back Door System:
    Tester Connection
    		Condition
    		Specified Condition
    S22-3 (CTY) - E2-25 (BCTY)
    		Always
    		Below 1 Ω
    S22-3 (CTY) - Body ground
    		Always
    		10 kΩ or higher
    S22-4 (E) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT BACK DOOR LOCK ASSEMBLY

  1. Remove the back door lock assembly (Click here).

  1. Inspect the back door lock assembly (Click here).



NG
REPLACE BACK DOOR LOCK ASSEMBLY (Click here)
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)