Terminals Of Ecu

TELEVISION CAMERA ASSEMBLY

Disconnect the T15 camera connector.

Fig 1: Identifying Terminals Of ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage and resistance between each terminal of the wire harness side connector.

CONNECTOR TERMINAL SPECIFIED VALUE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
CGND (T15-3) - Body ground	W - Body ground	Ground	Always	Below 1 Ω
CB+ (T15-4) - CGND (T15-3)	B - W	Power source	Ignition switch on, shift lever R position	Approx. 6 V

If the result is not as specified, there may be a malfunction on the wire harness side.

Measure the voltage and frequency between each terminal of the connector.

CONNECTOR TERMINAL SPECIFIED VALUE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
CV+ (T15-2) - CV- (T15-1)	R - Shielded	Display signal	Ignition switch on, shift lever R position	See 1 waveform 1

If the result is not as specified, the camera may have a malfunction.

Reference:

Oscilloscope waveform

Waveform 1

WAVEFORM REFERENCE 1

Item	Content
Measurement terminal	CV+ - CV-
Measurement setting	0.2 V/DIV., 0.2 μS/DIV.
Condition	Ignition switch on, Shift lever R position

Fig 2: Identifying Waveform Graph