TERMINALS OF ECU

System information

Combination Meter Assembly

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
E2 (J34-1) - Body Ground	W-B - Body ground	Ground	Always	Below 1 V
FE (J34-2) - Body ground	BR - Body ground	Ground (Fuel ground)	Always	Below 1 V
+S (J34-5) - Body ground	P - Body ground	Speed signal (Output)	Turn the wheel slowly	Pulse generation (See waveform 1)
MPX+ (J34-6) - Body ground	BR - Body ground	Multiplex communication signal	-	-
TC (J34-8) - Body ground	P - Body ground	Light control rheostat signal	Engine switch on (IG), the light control rheostat knob is at the MAX. position (turns fully clockwise)	4 to 6 V
TC (J34-8) - Body ground	P - Body ground	Light control rheostat signal	Engine switch on (IG), the light control rheostat knob is at the MIN. position (turns fully counterclockwise)	Below 1 V
ILL+ (J34-9) - Body ground	V - Body ground	Light control rheostat signal	Engine switch on (IG), combination switch is except on OFF	4 to 6 V
B (J34-11) - Body ground	G - Body ground	Turn indicator light signal	Engine switch on (IG), turn signal LH indicator light OFF	Below 1 V
B (J34-11) - Body ground	G - Body ground	Turn indicator light signal	Engine switch on (IG), turn signal LH indicator light ON	10 to 14 V
EFI (J34-12) - Body ground	O - Body ground	Ignition switch signal	Engine switch off	Below 1 V
EFI (J34-12) - Body ground	O - Body ground	Ignition switch signal	Engine switch on (IG)	10 to 14 V
ES (J34-13) - Body ground	W-B - Body ground	Ground (Signal ground)	Always	Below 1 V
ET (J34-14) - Body ground	Y - Body ground	Ground (Rheostat ground)	Always	Below 1 V
S (J34-16) - Body ground	W - Body ground	Tachometer signal	Engine switch on (IG), engine idle speed	Pulse generation (See waveform 2)
SI (J34-17) - Body ground	V - Body ground	Speed signal (Input)	Engine switch on (IG), turn the wheel slowly	Pulse generation (See waveform 1)
MPX- (J34-18) - Body ground	BR - Body ground	Multiplex communication signal	-	-
FR (J34-19) - Body ground	SB - Body ground	Fuel signal	Engine switch on (IG), fuel level is FULL	Below 1 V
FR (J34-19) - Body ground	SB - Body ground	Fuel signal	Engine switch on (IG), fuel level is EMPTY	4 to 7 V
MSSL (J34-20) - Body ground	V - Body ground	Steering pad switch signal	Engine switch on (IG), DISP switch off	4 to 6 V
MSSL (J34-20) - Body ground	V - Body ground	Steering pad switch signal	Engine switch on (IG), DISP switch ON	Below 1 V
TR (J34-21) - Body ground	B - Body ground	Light control rheostat signal	Engine switch on (IG), the light control rheostat knob is at the MIN. position (turns fully counterclockwise).	Below 1 V
TR (J34-21) - Body ground	B - Body ground	Light control rheostat signal	Engine switch on (IG), the light control rheostat knob is at the MAX. position (turns fully clockwise).	4 to 6 V
B (J34-23) - Body ground	L - Body ground	Battery	Always	10 to 14 V
B (J34-24) - Body ground	LG - Body ground	Battery	Always	10 to 14 V
PBLT (J35-3) - Body ground	P - Body ground	Passenger seat belt warning light signal	Sit in the passenger seat, engine switch on (IG), passenger seat belt fastened	10 to 14 V
PBLT (J35-3) - Body ground	P - Body ground	Passenger seat belt warning light signal	Sit in the passenger seat, engine switch on (IG), p- belt warning light blinks	Pulse generation (See waveform 3)
P/SB (J35-4) - Body ground	L - Body ground	Passenger seat inner belt signal	Engine switch on (IG), passenger seat belt unfastened	10 to 14 V
P/SB (J35-4) - Body ground	L - Body ground	Passenger seat inner belt signal	Engine switch on (IG), passenger seat belt fastened	Below 1 V
RSEL (J35-5) - Body ground	GR - Body ground	Satellite switch RH signal	Engine switch on (IG), satellite switch RH off	4 to 6 V
RSEL (J35-5) - Body ground	GR - Body ground	Satellite switch RH signal	Engine switch on (IG), satellite switch RH ON	Below 1 V
LSEL (J35-6) - Body ground	O - Body ground	Satellite switch LH signal	Engine switch on (IG), satellite switch LH off	4 to 6 V
LSEL (J35-6) - Body ground	O - Body ground	Satellite switch LH signal	Engine switch on (IG), satellite switch LH ON	Below 1 V
SET (J35-7) - Body ground	V - Body ground	Satellite switch ON/OFF signal	Engine switch on (IG), satellite switch ON/OFF off	4 to 6 V
SET (J35-7) - Body ground	V - Body ground	Satellite switch ON/OFF signal	Engine switch on (IG), satellite switch ON/OFF ON	Below 1 V
ILL- (J34-9) - Body ground	W - Body ground	Illumination signal	Engine switch on (IG)	10 to 14 V
B (J35-10) - Body ground	R - Body ground	Turn indicator light signal	Engine switch on (IG), turn signal RH indicator light OFF	Below 1 V
B (J35-10) - Body ground	R - Body ground	Turn indicator light signal	Engine switch on (IG), turn signal RH indicator light ON	10 to 14 V
EFI (J35-11) - Body ground	LG - Body ground	Check engine indicator light signal	Engine switch on (IG), CHECK ENGINE warning light ON	Below 1 V
EFI (J35-11) - Body ground	LG - Body ground	Check engine indicator light signal	Engine switch on (IG), CHECK ENGINE warning light OFF	10 to 14 V
SW (J35-15) - Body ground	LG - Body ground	Brake fluid level warning light signal	Engine switch on (IG), BRAKE warning light OFF	10 to 14 V
SW (J35-15) - Body ground	LG - Body ground	Brake fluid level warning light signal	Engine switch on (IG), BRAKE warning light ON	Below 1.5 V

Waveform 1 (Reference) : Using an oscilloscope:
OK:
Item
Condition

Tool setting
5 V/DIV., 20 ms./DIV.

Vehicle condition
Driving at approx. 20 km/h (12 mph)

HINT:

As vehicle speed increases, the cycle of the signal waveform narrows.

Waveform 2 (Reference) : Using an oscilloscope:
OK:
Item
Condition

Tool setting
5 V/DIV., 10 ms./DIV.

Vehicle condition
Engine idle speed

Waveform 3 (Reference) : Using an oscilloscope:
OK:
Item
Condition

Tool setting
5 V/DIV., 200 ms./DIV.

Vehicle condition
Engine switch on (IG), p-belt warning light blinks

OK:
Item	Condition
Tool setting	5 V/DIV., 20 ms./DIV.
Vehicle condition	Driving at approx. 20 km/h (12 mph)

OK:
Item	Condition
Tool setting	5 V/DIV., 10 ms./DIV.
Vehicle condition	Engine idle speed

OK:
Item	Condition
Tool setting	5 V/DIV., 200 ms./DIV.
Vehicle condition	Engine switch on (IG), p-belt warning light blinks

CLOCK ASSEMBLY (without NAVIGATION SYSTEM)

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
ILL+ (J54-3) - Body ground	G - Body ground	Illumination Signal	Combination switch OFF	Below 1 V
ILL+ (J54-3) - Body ground	G - Body ground	Illumination Signal	Combination switch Head	10 to 14 V
IG+ (J54-4) - Body ground	B - Body ground	Ignition Switch Signal	Engine switch off	Below 1 V
IG+ (J54-4) - Body ground	B - Body ground	Ignition Switch Signal	Engine switch on (IG)	10 to 14 V
ACC (J54-5) - Body ground	O - Body ground	Ignition Switch Signal	Engine switch off	Below 1 V
ACC (J54-5) - Body ground	O - Body ground	Ignition Switch Signal	Engine switch on (IG)	10 to 14 V
E (J54-8) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
ILL-(J54-10) - Body ground	LG - Body ground	Illumination Signal	Engine switch on (IG), combination switch Head, and light control rheostat position MAX.	Pulse generation (See waveform)
B (J54-14) - Body ground	LG - Body ground	Battery	Always	10 to 14 V

Waveform (Reference) : Using an oscilloscope:
OK:
Item
Condition

Tool setting
5 V/DIV., 200 ms./DIV.

Vehicle condition
Engine switch on (IG), light control rheostat is in the MID. position.

OK:
Item	Condition
Tool setting	5 V/DIV., 200 ms./DIV.
Vehicle condition	Engine switch on (IG), light control rheostat is in the MID. position.

CLOCK ASSEMBLY (with NAVIGATION SYSTEM)

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
E (J53-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
ILL+ (J53-4) - Body ground	G - Body ground	Illumination Signal	Combination switch OFF	Below 1 V
ILL+ (J53-4) - Body ground	G - Body ground	Illumination Signal	Combination switch Head	10 to 14 V
ACC (J53-5) - Body ground	W-B - Body ground	Ignition Switch Signal	Engine switch off	Below 1 V
ACC (J53-5) - Body ground	W-B - Body ground	Ignition Switch Signal	Engine switch on (IG)	10 to 14 V
+B (J53-6) - Body ground	BR - Body ground	Battery	Always	10 to 14 V
ILL-(J53-10) - Body ground	W - Body ground	Illumination Signal	Engine switch on (IG), combination switch Head, and light control rheostat position MAX.	Pulse generation (See waveform)
IG (J53-11) - Body ground	B - Body ground	Ignition Switch Signal	Engine switch off	Below 1 V
IG (J53-11) - Body ground	B - Body ground	Ignition Switch Signal	Engine switch on (IG)	10 to 14 V

Waveform (Reference) : Using an oscilloscope:
OK:
Item
Condition

Tool setting
5 V/DIV., 200 ms./DIV.

Vehicle condition
Engine switch on (IG), light control rheostat is in the MID. position.

OK:
Item	Condition
Tool setting	5 V/DIV., 200 ms./DIV.
Vehicle condition	Engine switch on (IG), light control rheostat is in the MID. position.

COMBINATION METER INNER CIRCUIT

*1: without Navigation System
*2: with Navigation System
E118074E01

Terminals No.		Wire harness side
J34	1	Ground
	2	Ground (Fuel Ground)
	3	-
	4	-
	5	Each part that uses speed signal
	6	Multiplex Communication Line (MPX+)
	7	-
	8	Light Control Rheostat (TC)
	9	Light Control Rheostat (ILL+)
	10	-
	11	Turn Signal Flasher (B)
	12	MET Fuse
	13	Ground (Signal Ground)
	14	Light Control Rheostat (ET)
	15	-
	16	ECM (S)
	17	ABS & Traction Actuator Assembly
	18	Multiplex Communication Line (MPX-)
	19	Fuel Sender Gauge Assembly (FR)
	20	Steering Pad Switch (DISP)
	21	Light Control Rheostat (TR)
	22	-
	23	DOME Fuse
	24	MPX-B Fuse
J35	1	-
	2	-
	3	Integration Control & Panel Assembly (1)/Multi-display (2)
	4	Passenger Side Front Seat Inner Belt Assembly
	5	Satellite Switch (RSEL)
	6	Satellite Switch (LSEL)
	7	Satellite Switch (SET)
	8	-
	9	Illumination Parts
	10	Turn Signal Flasher (B)
	11	-
	12	ECM (EFI)
	13	-
	14	-
	15	Brake Fluid Level Warning Switch
	16	-