METER / GAUGE SYSTEM TERMINALS OF ECU

COMBINATION METER ASSEMBLY

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

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   E13-1 (DCTY) - Body ground	P - Body ground	Driver door courtesy light switch signal	Driver door open	Below 1 V
   			Driver door closed	11 to 14 V
   E13-2 (PCTY) - Body ground	L - Body ground	Door courtesy light switch (except driver door) signal	Any door (except driver door) open	Below 1 V
   			Any door (except driver door) closed	11 to 14 V
   E13-3 (B) - Body ground	G - Body ground	Battery	Always	11 to 14 V
   E13-4 (LL) - Body ground	Y - Body ground	LH turn indicator light signal (Output)	Ignition switch ON, LH turn indicator light off	Below 1 V
   			Ignition switch ON, LH turn indicator light blinking	11 to 14 V ←→ Below 1 V
   E13-5 (LR) - Body ground	W - Body ground	RH turn indicator light signal (Output)	Ignition switch ON, RH turn indicator light off	Below 1 V
   			Ignition switch ON, RH turn indicator light blinking	11 to 14 V ←→ Below 1 V
   E12-1 (HAZ) - Body ground	G - Body ground	Hazard warning signal switch signal	Ignition switch ON, hazard warning signal switch off	11 to 14 V
   			Ignition switch ON, hazard warning signal switch on	Below 1 V
   E12-2 (EL) - Body ground	B - Body ground	LH turn indicator light signal (Input)	Ignition switch ON, LH turn signal switch off	11 to 14 V
   			Ignition switch ON, LH turn signal switch on	Below 1 V
   E12-3 (ER) - Body ground	Y - Body ground	RH turn indicator light signal (Input)	Ignition switch ON, RH turn signal switch off	11 to 14 V
   			Ignition switch ON, RH turn signal switch on	Below 1 V
   E12-4 (RRMT) - Body ground	V - Body ground	Rear right seat belt warning output signal	Ignition switch ON, rear seat belt warning light RH off	11 to 14 V
   			Ignition switch ON, rear seat belt warning light RH on	Below 1 V
   E12-5 (RLMT) - Body ground	SB - Body ground	Rear left seat belt warning output signal	Ignition switch ON, rear seat belt warning light LH off	11 to 14 V
   			Ignition switch ON, rear seat belt warning light LH on	Below 1 V
   E12-8 (SW) - Body ground	V - Body ground	Brake fluid level signal	Ignition switch ON, brake fluid level not low	11 to 14 V
   			Ignition switch ON, brake fluid level low	Below 1 V
   E12-9 (ACC) - Body ground	GR - Body ground	ACC switch signal	Ignition switch off	Below 1 V
   			Ignition switch ACC	11 to 14 V
   E12-10 (PKBI) - Body ground	R - Body ground	Parking brake switch signal	Parking brake applied	Below 1 V
   			Parking brake released	11 to 14 V
   E12-11 (RRSB) - Body ground	V - Body ground	Rear right seat belt buckle switch signal	Ignition switch ON, rear seat belt RH unfastened	Below 1 V
   			Ignition switch ON, rear seat belt RH fastened	11 to 14 V
   E12-12 (RLSB) - Body ground	SB - Body ground	Rear left seat belt buckle switch signal	Ignition switch ON, rear seat belt LH unfastened	Below 1 V
   			Ignition switch ON, rear seat belt LH fastened	11 to 14 V
   E12-13 (P/SB) - Body ground	B - 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
   			Ignition switch ON, front passenger seat occupied, and front passenger seat belt fastened	11 to 14 V
   E12-14 (BKL) - Body ground	W - Body ground	Driver seat belt buckle switch signal	Ignition switch ON, driver seat belt unfastened	Below 1 V
   			Ignition switch ON, driver seat belt fastened	11 to 14 V
   E12-17 (TX1+) - E12-18 (TX1-)	L - G	Ambient temperature sensor signal	Ignition switch ON	0.5 to 4 V
   E12-19 (CHG-) - Body ground*4	BE - Body ground	Charge warning light signal	Engine running, charge warning light off	11 to 14 V
   			Engine running, charge warning light on	Below 1 V
   E12-20 (S) - Body ground*5	G - Body ground	Oil pressure signal	Engine started	11 to 14 V
   			Engine not started	Below 1 V
   E12-21 (SI) - Body ground	Y - Body ground	Speed signal for other system (Input)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 1)
   E12-22 (+S) - Body ground	V - Body ground	Speed signal for other system (Output)	Ignition switch ON, wheel being rotated	Pulse generation (See waveform 1)
   E12-23 (CHK) - Body ground*2	GR - Body ground	MIL (Check engine warning light) signal	Ignition switch ON, MIL off	11 to 14 V
   			Ignition switch ON, MIL on	Below 1 V
   E12-24 (FOG) - Body ground*3	LG - Body ground	Front fog light signal	Ignition switch ON, front fog indicator light off	Below 1 V
   			Ignition switch ON, front fog indicator light on	11 to 14 V
   E12-25 (ILL+) - Body ground	G - Body ground	Taillight signal	Ignition switch ON, tail indicator light off	Below 1 V
   			Ignition switch ON, tail indicator light on	11 to 14 V
   E12-28 (+) - Body ground	BR - Body ground	High beam signal	High beam off	Below 1 V
   			High beam on	11 to 14 V
   E12-29 (-) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   E12-30 (SW) - Body ground	L - Body ground	Turn signal switch signal	Ignition switch ON, LH and RH turn signal switch off	11 to 14 V
   			Ignition switch ON, LH or RH turn signal switch on	Below 1 V
   E12-31 (TX+) - Body ground*1	W - Body ground	TCM communication line	Ignition switch ON	Pulse generation (See waveform 2)
   E12-32 (BRQ) - Body ground*1	LG - Body ground	TCM communication line	Always	Below 1.44 V
   E12-33 (S) - Body ground	G - Body ground	Rear fog light signal	Ignition switch ON, rear fog indicator light off	Below 1 V
   			Ignition switch ON, rear fog indicator light on	11 to 14 V
   E12-34 (L) - E12-35 (ES)	V - GR	Fuel level signal	Ignition switch ON, fuel level full	Below 1 V
   			Ignition switch ON, fuel level low (fuel level warning light on)	4.5 to 9 V
   E12-36 (CANL) - Body ground	W - Body ground	CAN communication line	-	-
   E12-37 (CANH) - Body ground	LG - Body ground	CAN communication line	-	-
   E12-38 (ET) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
   E12-39 (IG+) - Body ground	P - Body ground	Ignition switch signal	Ignition switch off	Below 1 V
   			Ignition switch ON	11 to 14 V
   E12-40 (B) - Body ground	L - Body ground	Battery	Always	11 to 14 V

   • *1: for Multi-mode Manual Transaxle

   • *2: for 1PP

   • *3: w/ Front Fog Light

   • *4: w/o Stop and Start System

   • *5: for 1KR-FE

   1. 

      Waveform 1 (Reference):

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

      Tip:

      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.

   2. 

      Waveform 2 (Reference):

      Item	Condition
      Tool setting	2 V/DIV., 500 μs./DIV.
      Vehicle condition	Ignition switch ON