Combination Meter ASSY

Fig 1: Identifying Terminals Of ECU

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TERMINALS SPECIFICATIONS

Symbols (Terminals No.)	Wiring Color	Terminal Description	Condition	Specified Condition
2 (C11-1) - Body ground	L - Body ground	A/T shift signal (2)	A/T 2 indicator OFF --> ON	Below 1 V --> 10 to 14 V
D (C11-2) - Body ground	L - Body ground	A/T shift signal (D)	A/T D indicator OFF --> ON	Below 1 V --> 10 to 14 V
N (C11-3) - Body ground	L - Body ground	A/T shift signal (N)	A/T N indicator OFF --> ON	Below 1 V --> 10 to 14 V
R (C11-4) - Body ground	L - Body ground	A/T shift signal (R)	A/T R indicator OFF --> ON	Below 1 V --> 10 to 14 V
P (C11-5) - Body ground	L - Body ground	A/T shift signal (P)	A/T P indicator OFF --> ON	Below 1 V --> 10 to 14 V
D-BELT (C11-6) - Body ground	R - Body ground	Driver seat belt condition signal	Ignition switch ON, sit on the driver seat, seat belt unfastened --> fastened	Below 1 V --> 10 to 14 V
ILL- (C11-7) - Body ground	L - Body ground	Illumination signal	Headlight switch ON, Light control rheostat position MIN --> MAX	Below 1 V --> 10 to 14 V
P-BELT (C11-8) - Body ground	R - Body ground	Passenger seat belt condition signal	Ignition switch ON, sit on the passenger seat, seat belt unfastened --> fastened	Below 1 V --> 10 to 14 V
ABS (C11-11) - Body ground	R - Body ground	ABS signal	Ignition switch ON, ABS warning light ON --> OFF	6.7 to 12 V --> Below 1 V
O/D OFF (C11-12) - Body ground	R - Body ground	O/D OFF signal	O/D OFF indicator ON --> OFF	Below 1 V --> 10 to 14 V
IG2 (C11-13) - Body ground	GR - Body ground	Ignition switch signal	Ignition switch OFF --> ON	Below 1 V --> 10 to 14 V
BRAKE (C11-14) - Body ground	P - Body ground	Brake signal	Ignition switch ON, BRAKE warning light ON --> OFF	6.7 to 12 V --> Below 1 V
BRAKE LEVEL (C11-15) - Body ground	W - Body ground	Brake fluid level signal	Ignition switch ON, brake fluid level (LO) --> NORMAL	Below 1 V --> 10 to 14 V
OIL-P (C11-16) - Body ground	R - Body ground	OIL pressure signal	OIL/P warning light ON --> OFF	Below 1 V --> 10 to 14 V
L (C11-17) - Body ground	L - Body ground	A/T shift signal (L)	A/T L indicator OFF --> ON	Below 1 V --> 10 to 14 V
KEY SW (C11-18) - Body ground	L - Body ground	Key switch signal	Key is inserted --> Not inserted	Below 1 V --> 10 to 14 V
FUEL (C11-19) - Body ground	L - Body ground	Fuel signal	Ignition switch ON, fuel level is FULL --> EMPTY	Below 1 V --> 4 to 7 V
AIRBAG (C11-20) - Body ground	R - Body ground	Airbag signal	Ignition switch ON, AIRBAG warning light ON --> OFF	Below 1 V --> 8 to 14 V
4P (C11-21) - Body ground	LG - Body ground	Speed signal (Output)	Ignition switch ON and turn the wheel slowly	Puls generation (*1)
HOT (C11-23) - Body ground	LG - Body ground	Coolant temperature signal	Ignition switch ON, HOT indicator OFF --> ON	Below 1 V --> 2 to 5 V
COLD (C11-24) - Body ground	LG - Body ground	Coolant Temperature signal	Ignition switch ON, COLD indicator OFF --> ON	Below 1 V --> 2 to 5 V
D-DOOR (C11-25) - Body ground	BR - Body ground	Driver door condition signal	Driver door OPEN --> CLOSE	Below 1 V --> 10 to 14 V
DOOR (C11-26) - Body ground	BR - Body ground	Except driver door condition signal	Except Driver door OPEN --> CLOSE	Below 1 V --> 10 to 14 V
WASH LVL (C11-28) - Body ground	R - Body ground	Washer level signal	WASH LVL indicator ON --> OFF	Below 1 V --> 10 to 14 V
CHECK ENGINE (C11-31) - Body ground	BR - Body ground	CHECK ENGINE signal	Ignition switch ON, CHECK ENGINE warning light ON --> OFF	Below 1 V --> 10 to 14 V
CHG- (C11-32) - Body ground	R - Body ground	Charge signal	Engine running --> Stopped	Below 1 V --> 10 to 14 V
IGN1 (C10-1) - Body ground	SB - Body ground	Battery	Any Contents	10 to 14 V
BEAM- (C10-2) - Body ground	R-Y - Body ground	Hi-Beam signal	Headlight dimmer switch Lo --> Hi	10 to 14 V --> Below 1 V
S GND (C10-3) - Body ground	W-B - Body ground	Ground	Constant	Continuity
TURN R (C10-4) - Body ground	P - Body ground	Turn signal R	Ignition switch ON, turn signal RH indicator OFF --> ON	Below 1 V --> 10 to 14 V
TURN L (C10-5) - Body ground	B - Body ground	Turn signal L	Ignition switch ON, turn signal LH indicator OFF --> ON	Below 1 V --> 10 to 14 V
P-BELT OUT (C10-6) - Body ground	R - Body ground	Passenger seat belt warning output signal	Passenger seat belt indicator OFF --> ON	Below 1 V --> 10 to 14 V
+B (C10-7) - Body ground	O - Body ground	Battery	Any Contents	10 to 14 V
BEAM+ (C10-8) - Body ground	R - Body ground	Hi-Beam signal	Any Contents	10 to 14 V
KEY ILL OUT (C10-9) - Body ground	R - Body ground	Key illumination signal	Key illumination ON --> OFF	Below 1 V --> 10 to 14 V
SP (C10-10) - Body ground	BR - Body ground	Speed signal (Input)	Ignition switch ON and turn the wheel slowly	Puls generation (*1)
TM (C10-11) - Body ground	W - Body ground	Tacho meter signal(Input)	Engine running	Puls generation (*2)
ILL+ (C10-12) - Body ground	BR - Body ground	Illumination signal	Tail light OFF --> ON	Below 1 V --> 10 to 14 V

*1: Reference: Using oscilloscope:

REFERENCE: USING OSCILLOSCOPE

Item	Contents
Tool setting	5 V/ DIV, 20 ms/ DIV
Vehicle condition	Driving at approx. 20Km/h

Fig 2: Oscilloscope Waves (1 Of 2)

*2: Reference: Using oscilloscope:

REFERENCE: USING OSCILLOSCOPE

Item	Contents
Tool setting	5 V/ DIV, 10 ms/ DIV
Vehicle condition	Engine idle speed

Fig 3: Oscilloscope Waves (2 Of 2)