TERMINALS OF ECU

System information

TELEVISION CAMERA ASSEMBLY

Disconnect the T14 camera connector.

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

Standard:
Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
CGND (T14-3) - Body ground	W - Body ground	Power ground	Always	Below 1 Ω
CB+ (T14-4) - CGND (T14-3)	B - W	Power source	IG 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.

Reconnect the T14 camera connector.

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

Standard:
Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
CV+ (T14-2) - CV- (T14-1)	R - Shielded	Display signal	IG switch ON, shift lever R position	See waveform 1

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

Reference:
Oscilloscope waveform
1. Waveform 1
  
  Item
  Content
  
  Measure terminal
  CV+ - CV-
  
  Measure set
  0.2 V/DIV, 0.2 μS/DIV
  
  Condition
  Ignition switch: ON, Shift lever: R position

TELEVISION CAMERA ECU

Disconnect the T15, T16 and T17 ECU connector.

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

Standard:
Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
TX+ (T15-17) - Body ground	GR - Body ground	AVC-LAN control bus	Always	10 kΩ or higher
TX- (T15-18) - Body ground	B - Body ground	AVC-LAN control bus	Always	10 kΩ or higher
TX1- (T15-23) - Body ground	Y - Body ground	AVC-LAN control bus	Always	10 kΩ or higher
TX1+ (T15-24) - Body ground	R - Body ground	AVC-LAN control bus	Always	10 kΩ or higher
+B (T16-1) - GND1 (T16-6)	L - W-B	Battery Supply	Always	10 to 14 V
IG (T16-2) - GND1 (T16-6)	B - W-B (1) GR - W-B (2)	IG signal input	IG switch ON	10 to 14 V
ACC (T16-3) - GND1 (T16-6)	P - W-B	ACC signal input	IG switch ON or ACC	10 to 14 V
GND1 (T16-6) - Body ground	W-B - Body ground	Power ground	Always	Below 1 Ω
CANL (T17-17) - Body ground	Y - Body ground	CAN control bus	Always	10 kΩ or higher
CANH (T17-18) - Body ground	R - Body ground	CAN control bus	Always	10 kΩ or higher

*1: LHD
*2: RHD

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

Reconnect the T15, T16 and T17 ECU connector.

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

Standard:
Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified value
VG (T15-7) - GND1 (T16-6)	Shielded - W-B	Display signal output ground (Shielded)	Always	Below 1 Ω
R (T15-8) - GND1 (T16-6)	G - W-B	Display signal output (Red)	While displaying map or back monitor	See waveform 2
G (T15-9) - GND1 (T16-6)	W - W-B	Display signal output (Green)	While displaying map or back monitor	See waveform 2
B (T15-10) - GND1 (T16-6)	R - W-B	Display signal output (Blue)	While displaying map or back monitor	See waveform 2
B1 (T15-13) - GND1 (T16-6)	R - W-B	Display signal input (Blue)	While displaying map	See waveform 2
G1 (T15-14) - GND1 (T16-6)	W - W-B	Display signal input (Green)	While displaying map	See waveform 2
R1 (T15-15) - GND1 (T16-6)	G - W-B	Display signal input (Red)	While displaying map	See waveform 2
VG1 (T15-16) - GND1 (T16-6)	Shielded - W-B	Display signal input ground (Shielded)	Always	Below 1 Ω
SYNC (T15-19) - GND1 (T16-6)	B - W-B	Synchronized signal output	While displaying map or back monitor	See waveform 3
VR (T15-20) - GND1 (T16-6)	Y - W-B	Display signal output ground	Always	Below 1 Ω
VR1 (T15-21) - GND1 (T16-6)	Y - W-B	Display signal input ground	Always	Below 1 Ω
SYN1 (T15-22) - GND1 (T16-6)	B - W-B	Synchronized signal input	While displaying map	See waveform 3
CGND (T17-21) - GND1 (T16-6)	W - W-B	Television camera ground	Always	Below 1 Ω
CB+ (T17-22) - GND1 (T16-6)	B - W-B	Power source to television camera	IG switch ON, shift lever R position	Approx. 6 V
CV- (T17-29) - GND1 (T16-6)	Shielded - W-B	Television camera ground (Shielded)	Always	Below 1 Ω
CV+ (T17-30) - GND1 (T16-6)	R - W-B	Display signal of television camera input	IG switch ON, shift lever R position	See waveform 1

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

Reference:
Oscilloscope waveform
1. Waveform 1
  
  Item
  Content
  
  Measure terminal
  CV+ - GND1
  
  Measure set
  0.2 V/DIV, 0.2 μS/DIV
  
  Condition
  Ignition switch: ON, Shift lever: R position
2. Waveform 2
  
  Item
  Content
  
  Terminal
  R, G, B, R1, G1, B1, - GND1
  
  Measure set
  200 mV/DIV, 10 μS/DIV
  
  Condition
  Image is being displayed (Parking assist system or navigation system).
3. Waveform 3
  
  Item
  Content
  
  Terminal
  SYNC, SYN1 - GND1
  
  Measure set
  500 mV/DIV, 10 μS/DIV
  
  Condition
  Image is being displayed (Parking assist system or navigation system).

Item	Content
Measure terminal	CV+ - CV-
Measure set	0.2 V/DIV, 0.2 μS/DIV
Condition	Ignition switch: ON, Shift lever: R position

Item	Content
Terminal	R, G, B, R1, G1, B1, - GND1
Measure set	200 mV/DIV, 10 μS/DIV
Condition	Image is being displayed (Parking assist system or navigation system).