Terminals Of Ecu
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- REAR TELEVISION CAMERA ASSEMBLY
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the V15 connector from the rear television camera assembly.
- Measure the voltage of each terminal of the wire harness side connector.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition V15-3 (CGND) - Body ground Shield - Body ground Ground Always Below 1 V V15-4 (CB+) - V15-3 (CGND) W - Shield Power source Power switch on (READY)
Reverse (R) selected*15.5 to 7.05 V Within 60 seconds of turning the power switch on (ACC)*2 5.5 to 7.05 V - *1: for Navigation Receiver Type
- *2: for Radio and Display Type
If the result is not as specified, there may be a malfunction on the wire harness side.
- Reconnect the V15 connector to the rear television camera assembly.
- Check for pulses between each terminal of the connector.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition V15-2 (CV+) - V15-1 (CV-) R - B Video signal Power switch on (READY)
Reverse (R) selected
Camera lens not covered, displaying an imagePulse generation
(See waveform 1)Power switch on (READY)
Reverse (R) selected
Camera lens covered, blacking out screenPulse generation
(See waveform 2)If the result is not as specified, the rear television camera assembly may have a malfunction.
- Reference (Oscilloscope waveform):
- Waveform 1 (camera lens is not covered, displaying an image)
Item Content Terminal No. (Symbol) V15-2 (CV+) - V15-1 (CV-) Tool Setting 200 mV/DIV., 50 μs/DIV. Condition Power switch on (READY), reverse (R) selected HINT:
The video waveform changes according to the image sent by the rear television camera assembly.
- Waveform 2 (camera lens is covered, blacking out the screen)
Item Content Terminal No. (Symbol) V15-2 (CV+) - V15-1 (CV-) Tool Setting 200 mV/DIV., 50 μs/DIV. Condition Power switch on (READY), reverse (R) selected HINT:
The video waveform changes according to the image sent by the rear television camera assembly.
TEXT IN ILLUSTRATION*a Waveform 1 (camera lens not covered, displaying an image) *b Waveform 2 (camera lens covered, blacking out the screen) *c Synchronization Signal *d Video Waveform
- Waveform 1 (camera lens is not covered, displaying an image)
- RADIO AND DISPLAY RECEIVER ASSEMBLY (NAVIGATION SYSTEM (for Radio and Display Type))
- NAVIGATION ECU SUB-ASSEMBLY (NAVIGATION SYSTEM (for Navigation Receiver Type))
- RADIO AND DISPLAY RECEIVER ASSEMBLY (for Audio and Visual System)