Rear View Monitor System (For Navigation Receiver Type) Image From Camera For Rear View Monitor Is Abnormal
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)
CHECK NAVIGATION RECEIVER ASSEMBLY
CHECK REAR TELEVISION CAMERA ASSEMBLY
REAR VIEW MONITOR SYSTEM (for Navigation Receiver Type) - Image from Camera for Rear View Monitor is Abnormal |
DESCRIPTION
This is the display signal circuit between the navigation receiver assembly and the rear television camera assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) |
Disconnect the H55 navigation receiver assembly connector.
Disconnect the X9*1 or v2*2 rear television camera assembly connector.
- *1: w/ Tire Carrier
- *2: w/o Tire Carrier
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- w/ Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
H55-11 (CA+) - X9-6 (CB+)
| Always
| Below 1 Ω
|
H55-12 (V+) - X9-3 (CV+)
| Always
| Below 1 Ω
|
H55-23 (CGND) - X9-5 (CGND)
| Always
| Below 1 Ω
|
H55-24 (V-) - X9-2 (CV-)
| Always
| Below 1 Ω
|
H55-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
H55-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
H55-23 (CGND) - Body ground
| Always
| 10 kΩ or higher
|
H55-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
- w/o Tire Carrier:
Tester Connection
| Condition
| Specified Condition
|
H55-11 (CA+) - v2-6 (CB+)
| Always
| Below 1 Ω
|
H55-12 (V+) - v2-3 (CV+)
| Always
| Below 1 Ω
|
H55-23 (CGND) - v2-5 (CGND)
| Always
| Below 1 Ω
|
H55-24 (V-) - v2-2 (CV-)
| Always
| Below 1 Ω
|
H55-11 (CA+) - Body ground
| Always
| 10 kΩ or higher
|
H55-12 (V+) - Body ground
| Always
| 10 kΩ or higher
|
H55-23 (CGND) - Body ground
| Always
| 10 kΩ or higher
|
H55-24 (V-) - Body ground
| Always
| 10 kΩ or higher
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2.CHECK NAVIGATION RECEIVER ASSEMBLY |
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
|
H55-24 (V-) - Body ground
| Always
| Below 1 Ω
|
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
H55-11 (CA+) - Body ground
| Ignition switch ON
| 5.5 to 7.05 V
|
Text in Illustration*a
| Component with harness connected (Navigation Receiver Assembly)
|
3.CHECK REAR TELEVISION CAMERA ASSEMBLY |
Using an oscilloscope, check the waveform.
Text in Illustration*a
| Component with harness connected (Navigation Receiver Assembly)
| *b
| Waveform 1
|
*c
| Waveform 2
| *d
| Synchronized Signal
|
*e
| Video Waveform
| -
| -
|
Measurement ConditionItem
| Content
|
Tester Connection
| H55-12 (V+) - H55-23 (CGND)
|
Tool Setting
| 200 mV/DIV., 50 μs/DIV.
|
Condition
| - Waveform 1: Ignition switch ON, camera lens not covered, displaying an image
- Waveform 2: Ignition switch ON, camera lens covered, blacking out screen
|
- OK:
- Waveform is as shown in illustration.
- HINT:
- The video waveform changes according to the image sent by the television camera assembly.
ResultResult
| Proceed to
|
OK
| A
|
NG (w/ Tire Carrier)
| B
|
NG (w/o Tire Carrier)
| C
|