Meter / Gauge System Terminals Of Ecu

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Meter. Lexus Is250, Is220D. Gse20 Ale20
  1. Combination Meter Assembly

  1. COMBINATION METER INNER CIRCUIT

Meter / Gauge System -- Terminals Of Ecu



Combination Meter Assembly
*: for 2AD-FHV

Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu


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
FSLH (J34-3) (*) - 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
-
-
FSRH (J34-7) - Body ground
SB - Body ground
Fuel signal
Engine switch on (IG), fuel level is FULL
Below 1 V
Engine switch on (IG), fuel level is EMPTY
4 to 7 V
TC (J34-8) - Body ground
P - Body ground
Light control rheostat signal
Engine switch on (IG), the light control rheostat knob is in the MAX. position (turned fully clockwise)
4 to 6 V
Engine switch on (IG), the light control rheostat knob is in the MIN. position (turned fully counterclockwise)
Below 1 V
ILL+ (J34-9) - Body ground
V - Body ground
Light control rheostat signal
Engine switch on (IG), combination switch is not 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
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
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
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
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 in the MIN. position (turned fully counterclockwise).
Below 1 V
Engine switch on (IG), the light control rheostat knob is in the MAX. position (turned 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
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
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
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
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
Engine switch on (IG), satellite switch ON/OFF ON
Below 1 V
ILL- (J35-9) - 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
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
Engine switch on (IG), CHECK ENGINE warning light OFF
10 to 14 V
J35-13 (OIL) (*) - Body ground
BR - Body ground
Engine oil level signal
Engine switch on (IG), engine oil level is full
Below 1 V
Engine switch on (IG), engine oil level is low
10 to 14 V
J35-14 (S) (*) - Body ground
O - Body ground
Engine oil pressure signal
Engine switch on (IG), engine oil pressure is high
Below 1 V
Engine switch on (IG), engine oil pressure is low
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
Engine switch on (IG), BRAKE warning light ON
Below 1.5 V
J35-16 (*) - Body ground
BR - Body ground
Fuel sedimenter warning switch signal
Engine switch on (IG), SEDIMENT warning light ON
10 to 14 V
Engine switch on (IG), SEDIMENT warning light OFF
Below 1 V


    Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu
  1. 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.


  2. Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu
  3. Waveform 2 (Reference) : Using an oscilloscope:

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


  4. Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu
  5. 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

COMBINATION METER INNER CIRCUIT
*1: for 2AD-FHV
*2: without Navigation System
*3: with Navigation System

Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu


Lexus Is250, Is220D. Gse20 Ale20.Meter.Meter / Gauge System.Meter / Gauge System  Terminals Of Ecu


Terminals No.
Wire harness side
J34
1
Ground
2
Ground (FE)
3
Ground (FSLH) (*1)
4
-
5
Each part that uses speed signal
6
Multiplex Communication Line (MPX+)
7
Fuel Sender Gauge Assembly (FSRH) (*1)
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 (*2)/Multi-display (*3)
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
Engine Oil Level Sensor (*1)
14
Engine Oil Pressure Switch (*1)
15
Brake Fluid Level Warning Switch
16
Fuel Sedimenter Warning Switch (*1)