Parking Assist Monitor System (W/ Side Monitor System) Image From Camera For Parking Assist Monitor Is Abnormal


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK SIDE MONITOR SYSTEM

CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY AND BODY GROUND)

CHECK PARKING ASSIST ECU (CB+, CGND)

CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)

CHECK HARNESS AND CONNECTOR

CHECK NAVIGATION RECEIVER ASSEMBLY

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

PARKING ASSIST MONITOR SYSTEM (w/ Side Monitor System) - Image from Camera for Parking Assist Monitor is Abnormal


DESCRIPTION

The display signal from the rear television camera assembly is transmitted to the navigation receiver assembly*1 or radio and display receiver assembly*2 via the parking assist ECU.
  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 (W/ Side Monitor System) Image From Camera For Parking Assist Monitor Is Abnormal


INSPECTION PROCEDURE

NOTICE:
  1. When "System initializing" is displayed on the parking assist ECU after the battery terminal has been disconnected, correct the steering angle neutral point (LandCruiser RM0000035DE05TX.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).
HINT:
Images may be unclear even in normal conditions if:
  1. Electrical devices are used in the cabin (noise may occur in the image).
  2. The camera lens is frosted over (the image immediately after turning the engine switch on (IG) may be blurred or darker than normal).
  3. The camera lens is dirty with snow, mud, etc.
  4. A strong beam of light, such as a sunbeam or headlight, hits the camera.
  5. It is too dark around the camera (at night etc.).
  6. The ambient temperature around the camera is either too high or too low.
  7. The vehicle is tilted at a steep angle.
  8. The rear television camera assembly lens is scratched.
  9. The rear television camera assembly lens has drops of water on it or the humidity is high.
  10. When the camera is used under fluorescent lights, sodium lights, or mercury lights etc., the lights and the illuminated area may appear to flicker.
1.CHECK SIDE MONITOR SYSTEM

  1. Check if the same malfunction occurs when the side monitor screen is displayed.

    Result
    Result
    		Proceed to
    Malfunction occurs when parking assist monitor screen is displayed (side monitor screen is normal).
    		A
    Malfunction occurs when parking assist monitor screen and side monitor screen are displayed.
    		B


B
Go to step 5
A


2.CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY AND BODY GROUND)

  1. Disconnect the I7 parking assist ECU connector.

  1. Disconnect the X9*1 or v2*2 rear television camera assembly connector.

    1. *1: w/ Tire Carrier
    2. *2: w/o Tire Carrier

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

    Standard Resistance:
    w/ Tire Carrier
    Tester Connection
    		Condition
    		Specified Condition
    I7-38 (CV-) - X9-2 (CV-)
    		Always
    		Below 1 Ω
    I7-15 (CV+) - X9-3 (CV+)
    		Always
    		Below 1 Ω
    I7-14 (CB+) - X9-6 (CB+)
    		Always
    		Below 1 Ω
    I7-37 (CGND) - X9-5 (CGND)
    		Always
    		Below 1 Ω
    I7-38 (CV-) - Body ground
    		Always
    		10 kΩ or higher
    I7-15 (CV+) - Body ground
    		Always
    		10 kΩ or higher
    I7-14 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    I7-37 (CGND) - Body ground
    		Always
    		10 kΩ or higher
    w/o Tire Carrier
    Tester Connection
    		Condition
    		Specified Condition
    I7-38 (CV-) - v2-2 (CV-)
    		Always
    		Below 1 Ω
    I7-15 (CV+) - v2-3 (CV+)
    		Always
    		Below 1 Ω
    I7-14 (CB+) - v2-6 (CB+)
    		Always
    		Below 1 Ω
    I7-37 (CGND) - v2-5 (CGND)
    		Always
    		Below 1 Ω
    I7-38 (CV-) - Body ground
    		Always
    		10 kΩ or higher
    I7-15 (CV+) - Body ground
    		Always
    		10 kΩ or higher
    I7-14 (CB+) - Body ground
    		Always
    		10 kΩ or higher
    I7-37 (CGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK PARKING ASSIST ECU (CB+, CGND)


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  1. Reconnect the I7 parking assist ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I7-37 (CGND) - Body ground
    		Always
    		Below 1 Ω
    I7-38 (CV-) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    I7-14 (CB+) - Body ground
    		Engine switch on (IG)
    		5.5 to 7.05 V
Text in Illustration
*a
Component with harness connected
(Parking Assist ECU)
Result
Proceed to
Result
OK
A
NG (for LHD)
B
NG (for RHD)
C


B
REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

C
REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)
A


4.CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)

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 (W/ Side Monitor System) Image From Camera For Parking Assist Monitor Is Abnormal


Text in Illustration
*a
Component with harness connected
(Parking Assist ECU)
*b
Waveform A
*c
Waveform B
*d
Synchronized Signal
*e
Video Waveform
-
-

  1. Check the waveform of the rear television camera assembly using an oscilloscope.

    HINT:
    1. A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly*1 or radio and display receiver assembly*2 with the connector connected.
      1. *1: for Navigation Receiver Type
      2. *2: for Radio and Display Type
    2. The video waveform changes according to the image sent by the rear television camera assembly.
    Item
    		Content
    Terminal No. (Symbol)
    		I7-15 (CV+) - I7-37 (CGND)
    Tool Setting
    		200 mV/DIV., 50 μsec./DIV.
    Condition
    1. Waveform A: Engine switch on (IG), camera lens is not covered, displaying an image
    2. Waveform B: Engine switch on (IG), camera lens is covered, blacking out the screen
    OK:
    Waveform is as shown in the illustration.
Result
Proceed to
Result
OK
A
NG (w/ Tire Carrier)
B
NG (w/o Tire Carrier)
C


B
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470R008X.html)

C
REPLACE REAR TELEVISION CAMERA ASSEMBLY (LandCruiser RM00000470U00MX.html)
A


5.CHECK HARNESS AND CONNECTOR

  1. Disconnect the I7 parking assist ECU connector.

  1. Disconnect the H50 navigation receiver assembly*1 or radio and display receiver assembly*2 connectors.

    1. *1: for Navigation Receiver Type
    2. *2: for Radio and Display Type

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    I7-16 (NS+) - H50-12 (V+)
    		Always
    		Below 1 Ω
    I7-17 (NS-) - H50-24 (V-)
    		Always
    		Below 1 Ω
    I7-18 (NSG) - H50-23 (CGND)
    		Always
    		Below 1 Ω
    I7-16 (NS+) - Body ground
    		Always
    		10 kΩ or higher
    I7-17 (NS-) - Body ground
    		Always
    		10 kΩ or higher
    I7-18 (NSG) - Body ground
    		Always
    		Below 1 kΩ
Result
Result
Proceed to
OK (for Navigation Receiver Type)
A
OK (for Radio and Display Type)
B
NG
C


B
Go to step 7

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A


6.CHECK NAVIGATION RECEIVER ASSEMBLY

  1. Replace the navigation receiver assembly with a normally functioning one (LandCruiser RM000003B6H02GX.html).

  1. Check if the same malfunction recurs when the parking assist monitor screen is displayed.

    OK:
    Malfunction does not reoccur (returns to normal).
Result
Proceed to
Result
OK (for LHD)
A
OK (for RHD)
B
NG
C


B
REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

C
REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)
A

END (NAVIGATION RECEIVER ASSEMBLY IS DEFECTIVE)

7.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

  1. Replace the radio and display receiver assembly with a normally functioning one (LandCruiser RM000003AHY02NX.html).

  1. Check if the same malfunction recurs when the parking assist monitor screen is displayed.

    OK:
    Malfunction does not reoccur (returns to normal).
Result
Proceed to
Result
OK (for LHD)
A
OK (for RHD)
B
NG
C


B
REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

C
REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)
A

END (RADIO AND DISPLAY RECEIVER ASSEMBLY IS DEFECTIVE)