Terminals Of Ecu

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

CHECK RADIO RECEIVER

Fig 1: Identifying Radio Receiver Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the D10 receiver connector.

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

Standard:

RADIO RECEIVER CONNECTOR TERMINALS VOLTAGE AND RESISTANCE SPECIFICATION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
GND(D10-7) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
ACC (D10-3) - GND (D10-7)	GR - W-B	ACC power supply	Ignition switch ACC	11 to 14 V
B(D10-4) - GND (D10-7)	L-W-B	Battery power supply	Always	11 to 14 V

HINT:

If the results are not as specified, there may be a malfunction in the wire harness.

Reconnect the D10 receiver connector.

Measure the voltage and resistance of the connector.

Standard:

TERMINAL DESCRIPTION AND SPECIFIED CONDITION

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
FR+(D10-1) - GND(D10-7)	GR - W-B	Sound signals (front right)	Audio system operating	Waveform synchronized with sound output
FL+ (D10-2) - GND (D10-7)	P-W-B	Sound signals (front left)	Audio system operating	Waveform synchronized with sound output
FR-(D10-5) -GND(D10-7)	Y-W-B	Sound signals (front right)	Audio system operating	Waveform synchronized with sound output
FL- (D10-6) -GND(D10-7)	V-W-B	Sound signals (front left)	Audio system operating	Waveform synchronized with sound output
RR+(D11-1) -GND(D10-7)	R-W-B	Sound signals (rear right)	Audio system operating	Waveform synchronized with sound output
RL+ (D11-2) - GND (D10-7)	B-W-B	Sound signals (rear left)	Audio system operating	Waveform synchronized with sound output
RR- (D11-3) - GND (D10-7)	W-W-B	Sound signals (rear right)	Audio system operating	Waveform synchronized with sound output
RL-(D11-6) - GND (D10-7)	Y-W-B	Sound signals (rear left)	Audio system operating	Waveform synchronized with sound output
ANT (D10-8) -GND(D10-7)	B-W-B	Power source of antenna	Radio switch ON (AM or FM)	11 to 14 V
ARI (D74-15)-GND(D10-7)	R-W-B	Sound signal (Right)	External device playing (When stereo jack adapter used)	Waveform synchronized with sound output
ASGN (D74-16) GND (D10-7)	(Shielded) - W-B	Ground (Shielded)	Always	Below 1 Ω
ALI(D74-17)-GND(D10-7)	G-W-B	Sound signal (Left)	External device playing (When stereo jack adapter used)	Waveform synchronized with sound output
AUXI(D74-19)-GND (D10-7)	R-W-B	External device connection detection signal	External device connected	Below 1 Ω
SPD (D74-3)	W-W-B	Speed signal	Ignition switch ON, drive wheels turned slowly	Pulse generation

HINT:

If the results are not as specified, there may be a malfunction in the wire harness.