ANTI-LOCK BRAKE SYSTEM > TERMINALS OF ECU

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CHECK SKID CONTROL ECU ASSEMBLY WITH ACTUATOR (BRAKE ACTUATOR ASSEMBLY)

C108855E01

  1. Measure the voltage of the wire harness side connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    +BS (S2-1) - GND (S2-2, 24)
    		W-R - W-B
    		Solenoid relay power supply
    		Always
    		10 to 14 V
    EXI4*1 (S2-3) - GND (S2-2, 24)
    		G-W - W-B
    		L4 switch input
    		Ignition switch ON, L4 switch ON
    		Below 1.5 V
    EXI4*1 (S2-3) - GND (S2-2, 24)
    		G-W - W-B
    		L4 switch input
    		Ignition switch ON, L4 switch OFF
    		8 to 14 V
    GL1*1 (S2-4) - GND (S2-2, 24)
    		R - W-B
    		Deceleration sensor input
    		Ignition switch ON, vehicle is stopped
    		0.5 to 4.5 V
    GGND*1 (S2-7) - GND (S2-2, 24)
    		B - W-B
    		Deceleration sensor GND
    		Ignition switch OFF
    		Below 1.5 V
    FL+ (S2-9) - FL (S2-8)
    		R - G
    		Front speed sensor LH input
    		Ignition switch ON, slowly turn left front wheel
    		Pulse generation
    STP (S2-10) - GND (S2-2, 24)
    		G-W - W-B
    		Stop light switch input
    		Stop light switch ON
    		8 to 14 V
    STP (S2-10) - GND (S2-2, 24)
    		G-W - W-B
    		Stop light switch input
    		Stop light switch OFF
    		Below 1.5 V
    RL+ (S2-11) - RL (S2-12)
    		P - L
    		Rear speed sensor LH input
    		Ignition switch ON, slowly turn left rear wheel
    		Pulse generation
    WA (S2-13) - GND (S2-2, 24)
    		R-G - W-B
    		ABS warning light output
    		Ignition switch ON, ABS warning light ON
    		9 to 14 V
    WA (S2-13) - GND (S2-2, 24)
    		R-G - W-B
    		ABS warning light output
    		Ignition switch ON, ABS warning light OFF
    		Below 1 V
    D/G (S2-14) - GND (S2-2, 24)
    		L-Y - W-B
    		Diagnosis tester communication line
    		Ignition switch ON
    		10 to 14 V
    TS (S2-15) - GND (S2-2, 24)
    		W - W-B
    		Terminal TS of DLC3
    		Ignition switch ON, ABS warning light OFF
    		Below 1.5 V
    TS (S2-15) - GND (S2-2, 24)
    		W - W-B
    		Terminal TS of DLC3
    		Ignition switch ON, ABS warning light ON
    		10 to 14 V
    TC (S2-16) - GND (S2-2, 24)
    		P-L - W-B
    		Terminal TS of DLC3
    		Ignition switch ON, ABS warning light OFF
    		Below 1.5 V
    TC (S2-16) - GND (S2-2, 24)
    		P-L - W-B
    		Terminal TS of DLC3
    		Ignition switch ON, ABS warning light ON
    		10 to 14 V
    EXI*2 (S2-17) - GND (S2-2, 24)
    		R-B - W-B
    		Differential vacuum actuator switch input
    		Ignition switch ON, differential vacuum actuator switch ON
    		Below 1.5 V
    EXI*2 (S2-17) - GND (S2-2, 24)
    		R-B - W-B
    		Differential vacuum actuator switch input
    		Ignition switch ON, differential vacuum actuator switch OFF
    		10 to 14 V
    PKB (S2-18) - GND (S2-2, 24)
    		L-O - W-B
    		Parking brake switch input
    		Ignition switch ON, parking brake switch ON
    		Below 1.5 V
    PKB (S2-18) - GND (S2-2, 24)
    		 L-O*3 - W-B
    LG*4 - W-B
    		Parking brake switch input
    		Ignition switch ON, parking brake switch OFF
    		10 to 14 V
    EXI2 (S2-22) - GND (S2-2, 24)
    		V - W-B
    		IG1 power supply
    		Ignition switch ON
    		10 to 14 V
    +BM (S2-23) - GND (S2-2, 24)
    		R - W-B
    		Motor relay power supply
    		Always
    		10 to 14 V
    IG1 (S2-25) - GND (S2-2, 24)
    		B - W-B
    		IG1 power supply
    		Ignition switch ON
    		10 to 14 V
    VGS*1 (S2-28) - GND (S2-2, 24)
    		W - W-B
    		Deceleration sensor input
    		Ignition switch ON, vehicle is stopped
    		4.75 to 5.25 V
    FR+ (S2-31) - FR (S2-30)
    		L-W - O
    		Front speed sensor RH input
    		Ignition switch ON, slowly turn right front wheel
    		Pulse generation
    RR+ (S2-33) - RR (S2-34)
    		G - R
    		Rear speed sensor RH input
    		Ignition switch ON, slowly turn right rear wheel
    		Pulse generation

    HINT:
    If the result is not as specified, there may be a malfunction in the skid control ECU.

    *1: 4WD
    *2: 4WD RHD
    *3: 1GR-FE
    *4: Except 1GR-FE