Terminals Of Ecu [10/2014 - ]

COMBINATION METER ASSEMBLY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
D8-1 (B) - Body ground	R - Body ground	Battery	Always	11 to 14 V
D8-3 (ER) - Body ground	V - Body ground	RH turn indicator light signal (Input)	Engine switch on (IG), RH turn signal switch off	11 to 14 V
D8-3 (ER) - Body ground	V - Body ground	RH turn indicator light signal (Input)	Engine switch on (IG), RH turn signal switch on	Below 1 V
D8-4 (EL) - Body ground	L - Body ground	LH turn indicator light signal (Input)	Engine switch on (IG), LH turn signal switch off	11 to 14 V
D8-4 (EL) - Body ground	L - Body ground	LH turn indicator light signal (Input)	Engine switch on (IG), LH turn signal switch on	Below 1 V
D8-5 (HAZ) - Body ground	W - Body ground	Hazard warning signal switch signal (Input)	Engine switch on (IG), hazard warning signal switch not pressed	Below 1 V
D8-5 (HAZ) - Body ground	W - Body ground	Hazard warning signal switch signal (Input)	Engine switch on (IG), hazard warning signal switch pressed	11 to 14 V
D8-7 (LL) - Body ground	B - Body ground	LH turn indicator light signal (Output)	Engine switch on (IG), LH turn indicator light off	Below 1 V
D8-7 (LL) - Body ground	B - Body ground	LH turn indicator light signal (Output)	Engine switch on (IG), LH turn indicator light blinks	11 to 14 V ←→ Below 1 V
D8-13 (LR) - Body ground	G - Body ground	RH turn indicator light signal (Output)	Engine switch on (IG), RH turn indicator light off	Below 1 V
D8-13 (LR) - Body ground	G - Body ground	RH turn indicator light signal (Output)	Engine switch on (IG), RH turn indicator light blinks	11 to 14 V ←→ Below 1 V
D9-1 (B) - Body ground	B - Body ground	Battery	Always	11 to 14 V
D9-4 (ILL-) - Body ground	SB - Body ground	Illumination signal	Headlight dimmer switch off	Below 1 V
D9-4 (ILL-) - Body ground	SB - Body ground	Illumination signal	Headlight dimmer switch tail or head position	Pulse generation
D9-6 (EP) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
D9-7 (ES) - Body ground	W - Body ground	Ground	Always	Below 1 Ω
D9-8 (SI) - Body ground	LG - Body ground	Speed signal for other system (Input)	Engine switch on (IG), wheel being rotated	Pulse generation (See waveform 1)
D9-9 (+S) - Body ground	P - Body ground	Speed signal for other system (Output)	Engine switch on (IG), wheel being rotated	Pulse generation (See waveform 1)
D9-11 (S) - Body ground	B - Body ground	Oil pressure signal	Engine switch on (IG), oil pressure warning light off	11 to 14 V
D9-11 (S) - Body ground	B - Body ground	Oil pressure signal	Engine switch on (IG), oil pressure warning light on	Below 1 V
D9-12 (LVWG)*1 - Body ground	SB - Body ground	Headlight leveling signal	Engine switch on (IG), "Check Headlight Leveling System" not displayed in multi-information display	11 to 14 V
D9-12 (LVWG)*1 - Body ground	SB - Body ground	Headlight leveling signal	Engine switch on (IG), "Check Headlight Leveling System" displayed in multi-information display	Below 1 V
D9-13 (IG+) - Body ground	P - Body ground	Engine switch signal	Engine switch off	Below 1 V
D9-13 (IG+) - Body ground	P - Body ground	Engine switch signal	Engine switch on (IG)	11 to 14 V
D9-15 (CANL) - Body ground	W - Body ground	CAN communication line	-	-
D9-16 (CANH) - Body ground	R - Body ground	CAN communication line	-	-
D9-18 (FR) - D9-17 (FE)	GR - Y	Fuel level signal	Engine switch on (IG), fuel level warning off	Below 1 V
D9-18 (FR) - D9-17 (FE)	GR - Y	Fuel level signal	Engine switch on (IG), fuel level warning on	4.5 to 9 V
D9-19 (SW) - Body ground	B - Body ground	Brake fluid level signal	Engine switch on (IG), brake fluid level not low	11 to 14 V
D9-19 (SW) - Body ground	B - Body ground	Brake fluid level signal	Engine switch on (IG), brake fluid level low	Below 1 V
D9-20 (SW) - Body ground	BE - Body ground	Turn switch signal	Engine switch on (IG), LH and RH turn signal switch off	11 to 14 V
D9-20 (SW) - Body ground	BE - Body ground	Turn switch signal	Engine switch on (IG), LH or RH turn signal switch on	Below 1 V
D9-21 (CHG-) - Body ground	BR - Body ground	Charge warning light signal	Engine switch on (IG), charge warning light off	11 to 14 V
D9-21 (CHG-) - Body ground	BR - Body ground	Charge warning light signal	Engine switch on (IG), charge warning light on	Below 1 V
D9-22 (CHK) - Body ground	R - Body ground	MIL (Check engine warning light) signal	Engine switch on (IG), MIL off	11 to 14 V
D9-22 (CHK) - Body ground	R - Body ground	MIL (Check engine warning light) signal	Engine switch on (IG), MIL on	Below 1 V
D9-23 (MSSL) - Body ground	L - Body ground	DISP switch (Steering pad switch assembly) signal	Engine switch on (IG), DISP switch not pressed	4 to 5 V
D9-23 (MSSL) - Body ground	L - Body ground	DISP switch (Steering pad switch assembly) signal	Engine switch on (IG), DISP switch pressed	Below 1 V
D9-24 (WLVL) - Body ground	LG - Body ground	Washer fluid level signal	Engine switch on (IG), washer fluid level not low	11 to 14 V
D9-24 (WLVL) - Body ground	LG - Body ground	Washer fluid level signal	Engine switch on (IG), washer fluid level low	Below 1 V

*1: w/ Automatic Headlight Beam Level Control System

Waveform 1 (Reference):

Item	Condition
Tool setting	5 V/DIV., 20 ms./DIV.
Vehicle condition	Engine switch on (IG), wheel being rotated

HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.