ANTI-LOCK BRAKE SYSTEM TERMINALS OF ECU


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

    A01J6Y7E01

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      S2-1 (+BS) - S2-2, 24 (GND1, GND2) W-R - W-B Solenoid relay power supply Always 10 to 14 V
      S2-3 (EXI4)* - S2-2, 24 (GND1, GND2) G-W - W-B L4 switch input Ignition switch ON, L4 switch ON Below 1.5 V
      Ignition switch ON, L4 switch OFF 8 to 14 V
      S2-4 (GL1) - S2-2, 24 (GND1, GND2) R - W-B Deceleration sensor input Ignition switch ON, vehicle is stopped 0.5 to 4.5 V
      S2-7 (GGND) - S2-2, 24 (GND1, GND2) B - W-B Deceleration sensor GND Ignition switch OFF Below 1.5 V
      S2-9 (FL+) - S2-8 (FL-) R - G Front speed sensor LH input Ignition switch ON, slowly turn left front wheel Pulse generation
      S2-10 (STP) - S2-2, 24 (GND1, GND2) G-W - W-B Stop light switch input Stop light switch ON 8 to 14 V
      Stop light switch OFF Below 1.5 V
      S2-11 (RL+) - S2-12 (RL-) P - L Rear speed sensor LH input Ignition switch ON, slowly turn left rear wheel Pulse generation
      S2-13 (WA) - S2-2, 24 (GND1, GND2) R-G - W-B ABS warning light output Ignition switch ON, ABS warning light ON 9 to 14 V
      Ignition switch ON, ABS warning light OFF Below 1 V
      S2-14 (D/G) - S2-2, 24 (GND1, GND2) L-Y - W-B Diagnosis tester communication line Ignition switch ON 10 to 14 V
      S2-15 (TS) - S2-2, 24 (GND1, GND2) W - W-B Terminal TS of DLC3 Ignition switch OFF Below 1.5 V
      Ignition switch ON 10 to 14 V
      S2-16 (TC) - S2-2, 24 (GND1, GND2) P-L - W-B Terminal TC of DLC3 Ignition switch OFF Below 1.5 V
      Ignition switch ON 10 to 14 V
      S2-17 (EXI)* - S2-2, 24 (GND1, GND2) R-B - W-B Center differential lock position switch input Ignition switch ON, center differential lock position switch ON Below 1.5 V
      Ignition switch ON, center differential lock position switch OFF 10 to 14 V
      S2-18 (PKB) - S2-2, 24 (GND1, GND2) L-O - W-B Parking brake switch input Ignition switch ON, parking brake switch ON Below 1.5 V
      Ignition switch ON, parking brake switch OFF 10 to 14 V
      S2-22 (EXI2) - S2-2, 24 (GND1, GND2) V - W-B IG1 power supply Ignition switch ON 10 to 14 V
      S2-23 (+BM) - S2-2, 24 (GND1, GND2) R - W-B Motor relay power supply Always 10 to 14 V
      S2-25 (IG1) - S2-2, 24 (GND1, GND2) R-L - W-B IG1 power supply Ignition switch ON 10 to 14 V
      S2-28 (VGS) - S2-2, 24 (GND1, GND2) W - W-B Deceleration sensor power supply Ignition switch ON, vehicle is stopped 4.75 to 5.25 V
      S2-31 (FR+) - S2-30 (FR-) W - R Front speed sensor RH input Ignition switch ON, slowly turn right front wheel Pulse generation
      S2-33 (RR+) - S2-34 (RR-) G - R Rear speed sensor RH input Ignition switch ON, slowly turn right rear wheel Pulse generation

      Tech Tips


      • *: for 4WD

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