Terminals Of Ecu

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK TELEVISION DISPLAY

Fig 1: Identifying W2 Display Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the W2 display connector.

Measure the resistance and voltage according to the value(s) in the table below.

RESISTANCE AND VOLTAGE SPECIFICATION

Terminal No. (Symbols)	Wiring Color	Terminal Description	Condition	Specified Condition
W2-12 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
W2-15 (ACC) - W2-12 (GND)	GR - W-B	ACC power supply	Ignition switch OFF	Below 1 V
W2-15 (ACC) - W2-12 (GND)	GR - W-B	ACC power supply	Ignition switch ACC	11 to 14 V
W2-16 (+B) - W2-12 (GND)	L - W-B	Battery	Always	11 to 14 V

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

Reconnect W2 display connector.

Measure the voltage according to the value(s) in the table below.

VOLTAGE SPECIFICATION

Terminal No. (Symbols)	Wiring Color	Terminal Description	Condition	Specified Condition
W2-6 (W+) - W2-12 (GND)	BR - W-B	Display signal (input)	External device is playing, VTR is displayed	Pulse generation
W2-22 (W-) - W2-12 (GND)	Y - W-B	Ground	Always	Below 1 V
W2-7 (R1+) - W2-12 (GND)	G - W-B	Right channel sound signal (input)	Disc player is playing	Waveform synchronized with sound is output
W2-8 (L1+) - W2-12 (GND)	R - W-B	Left channel sound signal (input)	Disc player is playing	Waveform synchronized with sound is output
W2-9 (SLD) - W2-12 (GND)*	Shielded - W-B	Shielded	Always	Below 1 V
W2-10 (SGN1) - W2-12 (GND)*	Y - W-B	Shielded	Always	Below 1 V
W2-11 (NTSO) - W2-12 (GND)*	BR - W-B	Display signal (output)	DVD displayed on television display	See WAVEFORM
W2-13 (TX-) - W2-12 (GND)	B - W-B	AVC-LAN communication signal	Ignition switch ACC	2 to 3 V
W2-14 (TX+) - W2-12 (GND)	LG - W-B	AVC-LAN communication signal	Ignition switch ACC	2 to 3 V
W2-23 (SGND) - W2-12 (GND)	Shielded - W-B	Shielded	Always	Below 1 V
W2-24 (ADPG) - W2-12 (GND)	SB - W-B	Video terminal ground	Always	Below 1 V
W2-25 (SGN2) - W2-12 (GND)	Shielded - W-B	Shielded	Always	Below 1 V
W2-26 (MUTE) - W2-12 (GND)	O - W-B	Mute signal	Television display is playing → Changing modes	3.5 V or higher → Below 1 V
W2-27 (SLD9) - W2-12 (GND)	Shielded - W-B	Shielded	Always	Below 1 V
W2-28 (R+) - W2-12 (GND)	B - W-B	Right channel sound signal (output)	Disc player is playing	Waveform synchronized with sound is output
W2-29 (R-) - W2-12 (GND)	G - W-B	Right channel sound signal (output)	Disc player is playing	Waveform synchronized with sound is output
W2-30 (L+) - W2-12 (GND)	R - W-B	Left channel sound signal (output)	Disc player is playing	Waveform synchronized with sound is output
W2-31 (L-) - W2-12 (GND)	W - W-B	Left channel sound signal (output)	Disc player is playing	Waveform synchronized with sound is output
HINT: *: w/ Navigation System

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

Using an oscilloscope, check the waveform.

Waveform (reference)

WAVEFORM REFERENCE

Item	Content
Terminal No. (Symbols)	W2-11 (NTSC) - W2-12 (GND)
Tool Setting	0.2 V/DIV., 10 μs/DIV.
Condition	DVD displayed on television display

Fig 2: Identifying Waveform

CHECK NAVIGATION RECEIVER (w/ Navigation System) (See TERMINALS OF ECU )
CHECK RADIO RECEIVER (w/o Navigation System) (see TERMINALS OF ECU )