CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY)
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY
CHECK REAR TELEVISION CAMERA ASSEMBLY
REAR VIEW MONITOR SYSTEM (for Radio and Display Type) - Image from Camera for Rear View Monitor is Abnormal |
DESCRIPTION
This is the display signal circuit between the radio and display receiver assembly and the rear television camera assembly.WIRING DIAGRAM

INSPECTION PROCEDURE
1.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) |
Disconnect the H50 radio and display receiver assembly connector.
Disconnect the X9*1 or v2*2 rear television camera assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
- w/ Tire Carrier:
Tester Connection Condition Specified Condition H50-11 (CA+) - X9-6 (CB+) Always Below 1 Ω H50-12 (V+) - X9-3 (CV+) Always Below 1 Ω H50-23 (CGND) - X9-5 (CGND) Always Below 1 Ω H50-24 (V-) - X9-2 (CV-) Always Below 1 Ω H50-11 (CA+) - Body ground Always 10 kΩ or higher H50-12 (V+) - Body ground Always 10 kΩ or higher H50-23 (CGND) - Body ground Always 10 kΩ or higher H50-24 (V-) - Body ground Always 10 kΩ or higher - w/o Tire Carrier:
Tester Connection Condition Specified Condition H50-11 (CA+) - v2-6 (CB+) Always Below 1 Ω H50-12 (V+) - v2-3 (CV+) Always Below 1 Ω H50-23 (CGND) - v2-5 (CGND) Always Below 1 Ω H50-24 (V-) - v2-2 (CV-) Always Below 1 Ω H50-11 (CA+) - Body ground Always 10 kΩ or higher H50-12 (V+) - Body ground Always 10 kΩ or higher H50-23 (CGND) - Body ground Always 10 kΩ or higher H50-24 (V-) - Body ground Always 10 kΩ or higher
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OK | |
2.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
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 H50-24 (V-) - Body ground Always Below 1 Ω
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Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Switch Condition Specified Condition H50-11 (CA+) - Body ground Ignition switch ON 5.5 to 7.05 V
*a | Component with harness connected (Radio and Display Receiver Assembly) |
Result | Proceed to |
OK | A |
NG (w/ Navigation System) | B |
NG (w/o Navigation System) | C |
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A | |
3.CHECK REAR TELEVISION CAMERA ASSEMBLY |
Using an oscilloscope, check the waveform.
Text in Illustration *a Component with harness connected
(Radio and Display Receiver Assembly)*b Waveform 1 *c Waveform 2 *d Synchronized Signal *e Video Waveform - - Measurement Condition Item Content Tester Connection H50-12 (V+) - H50-23 (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 rear television camera assembly.
Result Result Proceed to OK A NG (w/ Tire Carrier) B NG (w/o Tire Carrier) C - Waveform 1: Ignition switch ON, camera lens not covered, displaying an image
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A | ||
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