Vehicle Stability Control System Terminals Of Ecu

  1. TERMINALS OF ECU

  1. TERMINAL INSPECTION

Vehicle Stability Control System -- Terminals Of Ecu



TERMINALS OF ECU

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Terminals Of Ecu


Text in Illustration
*a
Component without harness connected
(Skid Control ECU [Brake Actuator Assembly])
-
-

Terminal No. (Symbol)
Terminal Description
1 (GND1)
Skid control ECU ground
2 (STP)
Stop light switch input
3 (IND)
Slip indicator light output
4 (RL-)
Rear wheel speed LH (-) signal input
5 (RL+)
Rear wheel speed LH (+) power supply output
6 (FR-)
Front wheel speed RH (-) signal input
7 (FR+)
Front wheel speed RH (+) power supply output
8 (BRL)
Brake warning light output
9 (EXI4)*1
LL position switch input
10 (WA)
ABS warning light output
12 (+BS)
Solenoid relay power supply
13 (GND2)
Pump motor ground
14 (CANL)
CAN communication low line
15 (VSCW)
VSC OFF indicator light output
16 (RR-)
Rear wheel speed RH (-) signal input
17 (RR+)
Rear wheel speed RH (+) power supply output
18 (FL-)
Front wheel speed LH (-) signal input
19 (FL+)
Front wheel speed LH (+) power supply output
20 (EXI)*1
Center differential lock position switch input
24 (BM)
Motor relay power supply
25 (CANH)
CAN communication high line
27 (FSW+)
Brake pedal load sensing switch input
28 (EXI3)
  1. w/o Rear Differential Lock: IG power supply input
  2. w/ Rear Differential Lock: Rear differential lock position switch (No. 4 transfer indicator switch) signal input
29 (PKB)
Parking brake switch input
30 (CSW)
VSC OFF switch input
32 (P)*2
Park/neutral position switch signal input
33 (TS)
Signal check input
34 (IG1)
ECU power supply
  1. *1: for 4WD
  2. *2: for Automatic Transmission

TERMINAL INSPECTION


  1. Disconnect the connector and measure the voltage or resistance according to the value(s) in the table below.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Brake Control.Vehicle Stability Control System.Vehicle Stability Control System Terminals Of Ecu


    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU [Brake Actuator Assembly])
    		-
    		-
    HINT:
    The voltage cannot be measured with the connector connected to the skid control ECU (brake actuator assembly) as the connector is watertight.

    Standard
    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    S25-1 (GND1) - Body ground
    		W-B - Body ground
    		Skid control ECU ground
    		Always
    		Below 1 Ω
    S25-2 (STP) - Body ground
    		G-W - Body ground
    		Stop light switch input
    		Brake pedal depressed → released
    		8 to 14 V
    → Below 1.5 V
    S25-9 (EXI4)*1 - Body ground
    		G-W - Body ground
    		LL position switch input
    1. Ignition switch ON
    2. Transfer shift position not LL
    		11 to 14 V
    S25-12 (+BS) - Body ground
    		W-R - Body ground
    		Solenoid relay power supply
    		Always
    		11 to 14 V
    S25-13 (GND2) - Body ground
    		W-B - Body ground
    		Pump motor ground
    		Always
    		Below 1 Ω
    S25-20 (EXI)*1 - Body ground
    		R-B - Body ground
    		Center differential lock position switch input
    1. Ignition switch ON
    2. Transfer shift position H
    		11 to 14 V
    S25-24 (BM) - Body ground
    		R - Body ground
    		Motor relay power supply
    		Always
    		11 to 14 V
    S25-27 (FSW+) - Body ground
    		L - Body ground
    		Brake pedal load sensing switch input
    		Brake pedal depressed → released
    		950 to 1050 Ω → 203 to 223 Ω
    S25-28 (EXI3) - Body ground
    		V - Body ground
    1. w/o Rear Differential Lock: IG power supply input
    2. w/ Rear Differential Lock: Rear differential lock position switch (No. 4 transfer indicator switch) signal input
    1. Ignition switch ON
    2. w/ Rear Differential Lock: Rear differential free
    		11 to 14 V
    S25-29 (PKB) - Body ground
    		L-O - Body ground
    		Parking brake switch input
    1. Ignition switch ON
    2. Parking brake lever pulled → released
    		Below 1 Ω → 10 kΩ or higher
    S25-30 (CSW) - Body ground
    		R-L - Body ground
    		VSC OFF switch input
    		VSC OFF switch held → released
    		Below 1 Ω → 10 kΩ or higher
    S25-32 (P)*2 - Body ground
    		G-B - Body ground
    		Park/neutral position switch signal input
    1. Ignition switch ON
    2. Shift lever not in P → Shift lever in P
    		Below 1 V
    → 11 to 14 V
    S25-34 (IG1) - Body ground
    		R-L - Body ground
    		ECU power supply
    		Ignition switch ON
    		11 to 14 V
    1. *1: for 4WD
    2. *2: for Automatic Transmission