| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Vehicle Interior | Section: Seat Belt | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM0000014DJ01NX |
| Title: SEAT BELT: SEAT BELT WARNING SYSTEM: TERMINALS OF ECU (2008 LX570) | ||
TERMINALS OF ECU
1. CHECK COMBINATION METER
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
E77-21 (B) - Body ground |
R - Body ground |
Combination meter +B line |
Always |
11 to 14 V |
|
E77-30 (IG+) - Body ground |
B - Body ground |
Combination meter IG line |
Engine switch on (IG) |
11 to 14 V |
|
E77-20 (EP) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
E77-39 (WRNP) - Body ground |
Y - Body ground |
Passenger seat belt signal |
Passenger seat occupied, seat belt fastened |
Below 1 V |
|
Passenger seat occupied, seat belt unfastened |
11 to 14 V |
2. CHECK DISPLAY AND NAVIGATION MODULE DISPLAY*1 (MULTI-DISPLAY*2)
HINT:
*1: w/ Navigation System
*2: w/o Navigation System
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F28-10 (GND1) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
F28-1 (+B1) - Body ground |
R - Body ground |
Multi-display +B line |
Always |
11 to 14 V |
|
F28-2 (ACC) - Body ground |
GR - Body ground |
Multi-display ACC line |
Engine switch on (ACC) |
11 to 14 V |
|
F28-3 (IG) - Body ground |
G - Body ground |
Multi-display IG line |
Engine switch on (IG) |
11 to 14 V |
|
F28-21 (PBEW) - Body ground |
Y - Body ground |
Passenger seat belt warning signal |
Passenger seat occupied, seat belt fastened |
Below 1 V |
|
Passenger seat occupied, seat belt unfastened |
11 to 14 V |
3. CHECK CENTER AIRBAG SENSOR
|
Terminal No. |
Symbol |
Destination |
|---|---|---|
|
K27-10 |
LBE+ |
Front seat inner belt LH (Seat belt buckle switch LH) |
|
L27-16 |
FSR+ |
Occupant classification ECU |
|
L27-22 |
FSR- |
Occupant classification ECU |
4. CHECK OCCUPANT CLASSIFICATION ECU
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
c8-5 (GND) - Body ground |
BR - Body ground |
Occupant classification ECU ground line |
Always |
Below 1 Ω |
|
c8-6 (PS) - c8-15 (GPS) |
W - GR |
Pressure sensor signal line |
Engine switch on (IG) |
Below 1 V |
|
c8-7 (VPS) - c8-5 (GND) |
B - BR |
Pressure sensor +B line |
Engine switch on (IG) |
4.75 to 5.25 V |
|
c8-8 (GBT) - c8-5 (GND) |
LG - BR |
Belt tension sensor ground line |
Always |
Below 1 V |
|
c8-9 (IG) - c8-5 (GND) |
B-R - BR |
Occupant classification ECU +B line |
Engine switch on (IG) |
11 to 14 V |
|
c8-10 (DIA) - c8-5 (GND) |
R-G - BR |
Diagnosis (DLC3) |
Engine switch on (IG) |
Pulse generation |
|
c8-11 (FSR+) - c8-12 (FSR-) |
W - B |
Center airbag sensor communication line |
Engine switch on (IG) |
Pulse generation |
|
c8-12 (FSR-) - c8-5 (GND) |
B - BR |
Center airbag sensor communication line (-) |
Always |
Below 1 Ω |
|
c8-13 (BSW) - c8-14 (BGND) |
R-B - B-W |
Passenger side buckle switch line |
Engine switch on (IG) |
Low: 4 to 7 mA Hi: 12 to 18 mA |
|
c8-14 (BGND) - c8-5 (GND) |
B-W - BR |
Passenger side buckle switch ground line |
Always |
Below 1 Ω |
|
c8-15 (GPS) - c8-5 (GND) |
GR - BR |
Pressure sensor ground line |
Always |
Below 1 Ω |
|
c8-16 (BT) - c8-5 (GND) |
P - BR |
Belt tension sensor signal line |
Engine switch on (IG) |
Below 1 V |
|
c8-17 (VBT) - c8-5 (GND) |
GR-G - BR |
Belt tension sensor +B line |
Engine switch on (IG) |
4.75 to 5.25 V |
|
|