Terminals Of Ecu [08/2016 - 08/2017]

COMBINATION METER ASSEMBLY

Fig 1: Combination Meter Assembly Connector End View

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
E43-1 (ILL-) - Body ground*7	W - Body ground	Illumination signal	Headlight dimmer switch off	Below 1 V
E43-1 (ILL-) - Body ground*7	W - Body ground	Illumination signal	Headlight dimmer switch in tail or head position	Pulse generation
E43-2 (ILL-) - Body ground*6	W - Body ground	Illumination signal	Headlight dimmer switch off	Below 1 V
E43-2 (ILL-) - Body ground*6	W - Body ground	Illumination signal	Headlight dimmer switch in tail or head position	Pulse generation
E43-4 (EP) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
E43-5 (SI) - Body ground	R - Body ground	Speed signal for other system (Input)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 1)
E43-6 (+S) - Body ground	V - Body ground	Speed signal for other systems (Output)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 1)
E43-7 (P/SB) - Body ground*4	GR - Body ground	Front passenger seat belt buckle switch signal	Ignition switch ON, front passenger seat occupied, and front passenger seat belt unfastened	Below 1 V
E43-7 (P/SB) - Body ground*4	GR - Body ground	Front passenger seat belt buckle switch signal	Ignition switch ON, front passenger seat occupied, and front passenger seat belt fastened	11 to 14 V
E43-8 (CHG-) - Body ground2, 7	G - Body ground	Charge warning signal	Ignition switch ON, "Charging System Malfunction See Owner's Manual" not displayed on multi-information display	Below 1 V
E43-8 (CHG-) - Body ground2, 7	G - Body ground	Charge warning signal	Ignition switch ON, "Charging System Malfunction See Owner's Manual" displayed on multi-information display	11 to 14 V
E43-9 (S) - Body ground	V - Body ground	Oil pressure signal	Idling	11 to 14 V
E43-9 (S) - Body ground	V - Body ground	Oil pressure signal	Ignition switch ON	Below 1 V
E43-10 (WLVL) - Body ground*1	L - Body ground	Washer fluid level signal	Ignition switch ON, washer fluid level not low	11 to 14 V
E43-10 (WLVL) - Body ground*1	L - Body ground	Washer fluid level signal	Ignition switch ON, washer fluid level low	Below 1 V
E43-11 (CHK) - Body ground	LG - Body ground	MIL (Check engine warning light) signal	Ignition switch ON, MIL off	11 to 14 V
E43-11 (CHK) - Body ground	LG - Body ground	MIL (Check engine warning light) signal	Ignition switch ON, MIL on	Below 1.5 V
E43-12 (SW) - Body ground	B - Body ground	Brake fluid level signal	Ignition switch ON, brake fluid level not low	11 to 14 V
E43-12 (SW) - Body ground	B - Body ground	Brake fluid level signal	Ignition switch ON, brake fluid level low	Below 1 V
E43-13 (CHG-) - Body ground2, 6	G - Body ground	Charge warning signal	Ignition switch ON, charge warning light off or "Charge warning (Charge warning symbol)" not displayed	Below 1 V
E43-13 (CHG-) - Body ground2, 6	G - Body ground	Charge warning signal	Ignition switch ON, charge warning light on or "Charge warning (Charge warning symbol)" displayed	11 to 14 V
E43-14 (-) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
E43-16 (L) - E43-15 (E)	V - BR	Fuel level signal	Ignition switch ON, fuel level warning off	Below 1 V
E43-16 (L) - E43-15 (E)	V - BR	Fuel level signal	Ignition switch ON, fuel level warning on	4.5 to 9 V
E43-17 (TC) - Body ground*5	Y - Body ground	Light control rheostat signal (Tail cancel switch)	Ignition switch ON, light control rheostat knob not fully turned upward (Tail cancel switch off)	1 to 6 V
E43-17 (TC) - Body ground*5	Y - Body ground	Light control rheostat signal (Tail cancel switch)	Ignition switch ON, light control rheostat fully turned upwards (Tail cancel switch on)	Below 1 V
E43-19 (+) - Body ground	R - Body ground	High beam signal	Ignition switch ON, high beam off	Below 1 V
E43-19 (+) - Body ground	R - Body ground	High beam signal	Ignition switch ON, high beam on	11 to 14 V
E43-21 (ET) - Body ground	BR - Body ground	Ground	Always	Below 1 Ω
E43-22 (MSTI) - Body ground*7	W - Body ground	Steering pad switch assembly signal	Ignition switch ON, up, down, right and left switches on steering pad switch assembly not pushed	4.6 to 5.2 V
			Ignition switch ON, up switch on steering pad switch assembly pushed	1 to 2.2 V
			Ignition switch ON, down switch on steering pad switch assembly pushed	2.5 to 3.4 V
			Ignition switch ON, right switch on steering pad switch assembly pushed	3.7 to 4.4 V
			Ignition switch ON, left switch on steering pad switch assembly pushed	Below 0.8 V
E43-23 (MSM+) - Body ground*7	R - Body ground	Steering pad switch assembly signal	Ignition switch ON, enter, back and trip switches on steering pad switch assembly not pushed	4.6 to 5.2 V
			Ignition switch ON, enter switch on steering pad switch assembly pushed	Below 0.8 V
			Ignition switch ON, back switch on steering pad switch assembly pushed	2.5 to 3.4 V
			Ignition switch ON, trip switch on steering pad switch assembly pushed	1 to 2.2 V
E43-28 (SW1) - Body ground*6	R - Body ground	Steering pad switch assembly signal	Ignition switch ON, DISP switch on steering pad switch assembly not pushed	11 to 14 V
E43-28 (SW1) - Body ground*6	R - Body ground	Steering pad switch assembly signal	Ignition switch ON, DISP switch on steering pad switch assembly pushed	Below 1 V
E43-28 (MSCL) - Body ground3, 7	SB - Body ground	Local bus communication Line	-	-
E43-29 (MSCH) - Body ground3, 7	R - Body ground	Local bus communication line	-	-
E43-29 (L) - Body ground*6	B - Body ground	Turn switch signal	Ignition switch ON, LH and RH turn signal switch off	11 to 14 V
E43-29 (L) - Body ground*6	B - Body ground	Turn switch signal	Ignition switch ON, LH or RH turn signal switch on	Below 1 V
E43-30 (L) - Body ground*7	B - Body ground	Turn switch signal	Ignition switch ON, LH and RH turn signal switch off	11 to 14 V
E43-30 (L) - Body ground*7	B - Body ground	Turn switch signal	Ignition switch ON, LH or RH turn signal switch on	Below 1 V
E43-31 (CANL) - Body ground	W - Body ground	CAN communication line	-	-
E43-32 (CANH) - Body ground	LG - Body ground	CAN communication line	-	-
E43-33 (SW3) - Body ground*5	R - Body ground	Light control rheostat signal (Rheostat ground)	Always	Below 1 Ω
E43-35 (TX1+) - E43-34 (TX1-)	G - W	Outside temperature sensor signal	Ignition switch ON, outside temperature 10°C (50°F)	1.87 to 2.38 V
			Ignition switch ON, outside temperature 15°C (59°F)	1.70 to 2.17 V
			Ignition switch ON, outside temperature 20°C (68°F)	1.54 to 1.96 V
			Ignition switch ON, outside temperature 25°C (77°F)	1.38 to 1.75 V
			Ignition switch ON, outside temperature 30°C (86°F)	1.22 to 1.55 V
			Ignition switch ON, outside temperature 35°C (95°F)	1.08 to 1.37 V
			Ignition switch ON, outside temperature 40°C (104°F)	0.94 to 1.20 V
			Ignition switch ON, outside temperature 45°C (113°F)	0.82 to 1.05 V
			Ignition switch ON, outside temperature 50°C (122°F)	0.72 to 0.91 V
E43-36 (SW2) - Body ground*5	B - Body ground	Light control rheostat signal	Ignition switch ON, light control rheostat knob not fully turned upward (Tail cancel switch off)	1 to 6 V (Gradually change)
E43-37 (SW1) - Body ground*5	L - Body ground	Light control rheostat signal	Always	4 to 6 V
E43-39 (IG+) - Body ground	P - Body ground	Ignition switch signal	Ignition switch off	Below 1 V
E43-39 (IG+) - Body ground	P - Body ground	Ignition switch signal	Ignition switch ON	11 to 14 V
E43-40 (B) - Body ground	W - Body ground	Battery	Always	11 to 14 V
E47-1 (B) - Body ground	B - Body ground	Battery	Always	11 to 14 V
E47-3 (HAZ) - Body ground	GR - Body ground	Hazard warning switch signal	Ignition switch ON, hazard warning switch not pressed	11 to 14 V
E47-3 (HAZ) - Body ground	GR - Body ground	Hazard warning switch signal	Ignition switch ON, hazard warning switch pressed	Below 1 V
E47-7 (LR) - Body ground	L - Body ground	RH turn indicator light signal (Output)	Ignition switch ON, RH turn indicator light off	Below 1 V
E47-7 (LR) - Body ground	L - Body ground	RH turn indicator light signal (Output)	Ignition switch ON, RH turn indicator light blinking	11 to 14 V ←→ Below 1 V
E47-9 (ER) - Body ground	P - Body ground	RH turn indicator light signal (Input)	Ignition switch ON, RH turn signal switch off	11 to 14 V
E47-9 (ER) - Body ground	P - Body ground	RH turn indicator light signal (Input)	Ignition switch ON, RH turn signal switch on	Below 1 V
E47-10 (EL) - Body ground	LG - Body ground	LH turn indicator light signal (Input)	Ignition switch ON, LH turn signal switch off	11 to 14 V
E47-10 (EL) - Body ground	LG - Body ground	LH turn indicator light signal (Input)	Ignition switch ON, LH turn signal switch on	Below 1 V
E47-13 (LL) - Body ground	Y - Body ground	LH turn indicator light signal (Output)	Ignition switch ON, LH turn indicator light off	Below 1 V
E47-13 (LL) - Body ground	Y - Body ground	LH turn indicator light signal (Output)	Ignition switch ON, LH turn indicator light blinking	11 to 14 V ←→ Below 1 V

*1: w/ Washer Fluid Level Warning
*2: w/o Battery Current Sensor
*3: for Navigation Receiver Type or Radio and Display Type with "APPS" Switch
*4: w/o Occupant Classification System
*5: w/ Light Control Rheostat
*6: for Multi-information Display (Segment LCD Type and Dot LCD Type)
*7: for Multi-information Display (Color Type)

Waveform 1 (Reference):

Item	Condition
Tool setting	5 V/DIV., 20 ms./DIV.
Vehicle condition	Ignition switch ON, 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.