| Last Modified: 11-27-2007 | 1.6 U | |
| Service Category: Brake | Section: Brake Control/Dynamic Control System | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001DWS00OX |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: TERMINALS OF ECU (2008 LX570) | ||
TERMINALS OF ECU
1. TERMINALS OF ECU
|
Terminal No. (Symbols) |
Terminal Description |
|---|---|
|
A24-1 (GND1) |
Skid control ECU ground |
|
A24-2 (+BM1) |
Power supply for motor |
|
A24-3 (FR+) |
Front speed sensor RH power supply output |
|
A24-4 (FL-) |
Front speed sensor LH input |
|
A24-5 (RR+) |
Rear speed sensor RH power supply output |
|
A24-6 (RL-) |
Rear speed sensor LH input |
|
A24-7 (STP) |
Stop light switch |
|
A24-9 (TRS) |
CRAWL ON/OFF switch |
|
A24-11 (CANH) |
CAN communication terminal H |
|
A24-12 (SP1) |
Speedometer signal |
|
A24-13 (D/G) |
Diagnosis tester serial communication |
|
A24-16 (STP0) |
Stop light operation relay |
|
A24-17 (FR-) |
Front speed sensor RH input |
|
A24-18 (FL+) |
Front speed sensor LH power supply output |
|
A24-19 (RR-) |
Rear speed sensor RH input |
|
A24-20 (RL+) |
Rear speed sensor LH power supply output |
|
A24-21 (TRM2) |
CRAWL speed selector switch |
|
A24-24 (TS) |
Sensor test terminal (Signal check switch) |
|
A24-25 (CANL) |
CAN communication terminal L |
|
A24-27 (EXI) |
Center differential lock switch |
|
A24-28 (PKB) |
Parking brake input |
|
A24-30 (BZ) |
Skid control buzzer |
|
A24-31 (+BS) |
Power supply for solenoid |
|
A24-32 (GND2) |
Skid control ECU ground |
|
A24-41 (LBL) |
Brake fluid level warning switch |
|
A24-42 (WFSE) |
Write flash enable input |
|
A24-43 (CSW) |
VSC OFF switch |
|
A24-44 (TRM1) |
CRAWL speed selector switch |
|
A24-45 (STP2) |
Stop light switch |
|
A24-46 (IG1) |
IG1 power supply |
|
Terminal No. (Symbols) |
Terminal Description |
|---|---|
|
A25-1 (IG2) |
IG2 power supply |
|
A25-2 (+BM2) |
Power supply for motor |
|
A25-4 (GND3) |
Skid control ECU ground |
2. TERMINAL INSPECTION
Disconnect the connector and measure the voltage or resistance on the wire harness side.
HINT:
Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.
|
Terminal No. (Symbols) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
A24-2 (+BM1) - Body ground |
B |
Power supply for motor (from battery) |
Always |
11 to 14 V |
|
A24-16 (STP0) - Body ground |
R-Y |
Stop light operation relay |
Engine switch off → on (IG) |
Below 1 V → 11 to 14 V |
|
A24-28 (PKB) - Body ground |
Y-R |
Parking brake input |
Parking brake switch on → off (Parking brake lever pulled → released) |
Below 1 Ω → 10 kΩ or higher |
|
A24-31 (+BS) - Body ground |
W |
Power supply for solenoid (from battery) |
Always |
11 to 14 V |
|
A24-41 (LBL) - Body ground |
BR-Y |
Brake fluid level warning switch |
Brake fluid level +/-5 mm (+/-0.197 in.) from the minimum level → maximum level |
Below 1 Ω → 1.9 to 2.1 kΩ |
|
A24-43 (CSW) - Body ground |
G-W |
VSC OFF switch input |
VSC OFF switch off → on |
10 kΩ or higher → Below 1 Ω |
|
A24-45 (STP2) - Body ground |
R |
Stop light switch |
Stop light switch on → off (Brake pedal depressed → released) |
8 to 14 V → Below 1.5 V |
|
A24-46 (IG1) - Body ground |
G |
IG1 power supply |
Engine switch off → on (IG) |
Below 1 V → 11 to 14 V |
|
A25-1 (IG2) - Body ground |
B |
IG2 power supply |
Engine switch off → on (IG) |
Below 1 V → 11 to 14 V |
|
A25-2 (+BM2) - Body ground |
B |
Power supply for motor (from battery) |
Always |
11 to 14 V |
|
A24-1 (GND1) - Body ground |
W-B |
Ground |
Always |
Below 1 Ω |
|
A24-32 (GND2) - Body ground |
W-B |
Ground |
Always |
Below 1 Ω |
|
A25-4 (GND3) - Body ground |
W-B |
Ground |
Always |
Below 1 Ω |
|
|