Parking Assist Monitor System (For Camera Built-In Ecu) Black Screen
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK VEHICLE TYPE
CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY)
CHECK NAVIGATION RECEIVER ASSEMBLY (CA+, CGND)
CHECK REAR TELEVISION CAMERA ASSEMBLY
CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY)
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (CA+, CGND)
CHECK REAR TELEVISION CAMERA ASSEMBLY
PARKING ASSIST MONITOR SYSTEM (for Camera built-in ECU) - Black Screen |
DESCRIPTION
The video signal from the rear television camera assembly is transmitted to the navigation receiver assembly*1 or radio and display receiver assembly*2.- *1: for Navigation Receiver Type
- *2: for Radio and Display Type
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- 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).
- 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).
Check the vehicle type.
ResultResult
| Proceed to
|
for Navigation Receiver Type
| A
|
for Radio and Display Type
| B
|
2.CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - NAVIGATION RECEIVER ASSEMBLY) |
Disconnect the v3*1 or X10*2 rear television camera assembly connector.
- *1: w/ Tire Carrier
- *2: w/o Tire Carrier
Disconnect the H55 navigation receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- w/ Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
v3-6 (CB+) - H55-11 (CA+)
| Always
| Below 1 Ω
|
v3-3 (CV+) - H55-12 (V+)
| Always
| Below 1 Ω
|
v3-2 (CV-) - H55-24 (V-)
| Always
| Below 1 Ω
|
v3-5 (CGND) - H55-23 (CGND)
| Always
| Below 1 Ω
|
v3-6 (CB+) or H55-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
v3-3 (CV+) or H55-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
v3-2 (CV-) or H55-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
v3-5 (CGND) or H55-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
- w/o Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
X10-6 (CB+) - H55-11 (CA+)
| Always
| Below 1 Ω
|
X10-3 (CV+) - H55-12 (V+)
| Always
| Below 1 Ω
|
X10-2 (CV-) - H55-24 (V-)
| Always
| Below 1 Ω
|
X10-5 (CGND) - H55-23 (CGND)
| Always
| Below 1 Ω
|
X10-6 (CB+) or H55-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
X10-3 (CV+) or H55-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
X10-2 (CV-) or H55-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
X10-5 (CGND) or H55-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3.CHECK NAVIGATION RECEIVER ASSEMBLY (CA+, CGND) |
Remove the navigation receiver assembly with the connector still connected (LandCruiser RM000003B6H02GX.html).
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
H55-11 (CA+) - H55-23 (CGND)
| Engine switch on (ACC)
| 5.5 to 7.05 V
|
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
H55-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
Text in Illustration*a
| Component with harness connected (Navigation Receiver Assembly)
|
4.CHECK REAR TELEVISION CAMERA ASSEMBLY |
Text in Illustration*a
| Component with harness connected (Navigation Receiver Assembly)
| *b
| Waveform 1
|
*c
| Waveform 2
| *d
| Synchronization Signal
|
*e
| Video Waveform
| -
| -
|
Remove the navigation receiver assembly with the connector still connected (LandCruiser RM000003B6H02GX.html).
Check the waveform of the rear television camera assembly using an oscilloscope.
- HINT:
- A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly with the connector connected.
Measurement ConditionItem
| Content
|
Measurement terminal
| H55-12 (V+) - H55-24 (V-)
|
Measurement setting
| 200 mV/DIV., 50 μsec./DIV.
|
Condition
| Waveform 1: Engine starts, shift lever in R, camera lens is not covered, displaying an image. Waveform 2: Engine starts, shift lever in R, camera lens is covered, blacking out the screen.
|
- HINT:
- The video waveform changes according to the image sent by the rear television camera assembly.
- The video waveform is constantly output when the engine switch is on (ACC).
- OK:
- Waveform is as shown in the illustration.
ResultResult
| Proceed to
|
OK
| A
|
NG (w/ Tire Carrier)
| B
|
NG (w/o Tire Carrier)
| C
|
5.CHECK HARNESS AND CONNECTOR (REAR TELEVISION CAMERA ASSEMBLY - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
Disconnect the v3*1 or X10*2 rear television camera assembly connector.
- *1: w/ Tire Carrier
- *2: w/o Tire Carrier
Disconnect the H50 radio and display receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- w/ Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
v3-6 (CB+) - H50-11 (CA+)
| Always
| Below 1 Ω
|
v3-3 (CV+) - H50-12 (V+)
| Always
| Below 1 Ω
|
v3-2 (CV-) - H50-24 (V-)
| Always
| Below 1 Ω
|
v3-5 (CGND) - H50-23 (CGND)
| Always
| Below 1 Ω
|
v3-6 (CB+) or H50-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
v3-3 (CV+) or H50-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
v3-2 (CV-) or H50-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
v3-5 (CGND) or H50-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
- w/o Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
X10-6 (CB+) - H50-11 (CA+)
| Always
| Below 1 Ω
|
X10-3 (CV+) - H50-12 (V+)
| Always
| Below 1 Ω
|
X10-2 (CV-) - H50-24 (V-)
| Always
| Below 1 Ω
|
X10-5 (CGND) - H50-23 (CGND)
| Always
| Below 1 Ω
|
X10-6 (CB+) or H50-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
X10-3 (CV+) or H50-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
X10-2 (CV-) or H50-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
X10-5 (CGND) or H50-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY (CA+, CGND) |
Remove the radio and display receiver assembly with the connector still connected (LandCruiser RM000003AHY02NX.html).
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
H50-11 (CA+) - H50-23 (CGND)
| Engine switch on (ACC)
| 5.5 to 7.05 V
|
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
H50-23 (CGND) - Body ground
| Always
| Below 1 Ω
|
Text in Illustration*a
| Component with harness connected (Radio and Display Receiver Assembly)
|
7.CHECK REAR TELEVISION CAMERA ASSEMBLY |
Text in Illustration*a
| Component with harness connected (Radio and Display Receiver Assembly)
| *b
| Waveform 1
|
*c
| Waveform 2
| *d
| Synchronization Signal
|
*e
| Video Waveform
| -
| -
|
Remove the radio and display receiver assembly with the connector still connected (LandCruiser RM000003AHY02NX.html).
Check the waveform of the rear television camera assembly using an oscilloscope.
- HINT:
- A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.
Measurement ConditionItem
| Content
|
Measurement terminal
| H50-12 (V+) - H50-24 (V-)
|
Measurement setting
| 200 mV/DIV., 50 μsec./DIV.
|
Condition
| Waveform 1: Engine starts, shift lever in R, camera lens is not covered, displaying an image. Waveform 2: Engine starts, shift lever in R, camera lens is covered, blacking out the screen.
|
- HINT:
- The video waveform changes according to the image sent by the rear television camera assembly.
- The video waveform is constantly output when the engine switch is on (ACC).
- OK:
- Waveform is as shown in the illustration.
ResultResult
| Proceed to
|
OK
| A
|
NG (w/ Tire Carrier)
| B
|
NG (w/o Tire Carrier)
| C
|