Parking Assist Monitor System (For Camera Built-In Ecu) Reverse Signal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE SIGNAL (OPERATION CHECK)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

PARKING ASSIST MONITOR SYSTEM (for Camera built-in ECU) - Reverse Signal Circuit


DESCRIPTION

The navigation receiver assembly*1 or radio and display receiver assembly*2 receives a reverse signal from the park/neutral position switch assembly.
  1. *1: for Navigation Receiver Type
  2. *2: for Radio and Display Type

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display).Parking Assist Monitor System (For Camera Built-In Ecu) Reverse Signal Circuit


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display).Parking Assist Monitor System (For Camera Built-In Ecu) Reverse Signal Circuit


INSPECTION PROCEDURE

NOTICE:
  1. If the cable was disconnected from and reconnected to the negative (-) battery terminal, the estimated course lines may not be displayed on the image of the area behind the vehicle. In this case, perform "Correct the Steering Angle Neutral Point" (LandCruiser RM0000035DE05YX.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 RM0000035DD06QX.html).
1.CHECK VEHICLE SIGNAL (OPERATION CHECK)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. Enter the "Function check/setting I" mode and select "Vehicle Signal".

  1. Check that the display changes between ON and OFF according to the shift lever position.

    Shift Lever Position
    		Display
    R
    		ON
    Except R
    		OFF
    HINT:
    This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever position.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM0000035D707EX.html)

2.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

  1. Remove the park/neutral position switch assembly (LandCruiser RM000000O5O01MX.html).

  1. Inspect the park/neutral position switch assembly (LandCruiser RM000000OD401HX.html).

Result
Result
Proceed to
OK (for Navigation Receiver Type)
A
OK (for Radio and Display Type)
B
NG
C


B
Go to step 4

C
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (LandCruiser RM000000O5O01MX.html)
A


3.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

  1. Disconnect the H56 navigation receiver assembly connector.

  1. Disconnect the C159 park/neutral position switch assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H56-2 (REV) - C159-1 (RL)
    		Always
    		Below 1 Ω
    H56-2 (REV) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE NAVIGATION RECEIVER ASSEMBLY (LandCruiser RM000003B6H02GX.html)

4.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

  1. Disconnect the H51 radio and display receiver assembly connector.

  1. Disconnect the C159 park/neutral position switch assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H51-2 (REV) - C159-1 (RL)
    		Always
    		Below 1 Ω
    H51-2 (REV) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (LandCruiser RM000003AHY02NX.html)