Terminals Of Ecu
- SKID CONTROL ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Terminal No. (Symbols) Terminal Description A17-1 (GND1) Skid control ECU ground A17-2 (STPO) Stop light control relay (BRK NO. 1) signal input A17-3 (PKB2) Parking brake switch signal input A17-4 (CANL) Vehicle CAN communication line A17-5 (CANH) Vehicle CAN communication line A17-6 (EXI2) A.D.D. detection switch signal input (4WD) A17-7 (D/G) Diagnosis tester communication line A17-8 No pin A17-9 (IG1) IG1 power supply A17-10 (TS) Sensor check input A17-11 (STP2) Stop light switch and stop light control relay (BRK NO. 1) signal input A17-12 No pin A17-13 (CSW) VSC OFF switch signal input A17-14 (SP1) Vehicle speed pulse signal output A17-15 No pin A17-16 (+BM) Motor relay power supply A17-17 (BST) Brake booster solenoid ground A17-18 (PIM) Pedal stroke sensor (Delta S sensor) input line A17-19 (GYAW) Yaw rate sensor ground A17-20 No pin A17-21 (E3) Pedal stroke sensor (Delta S sensor) ground A17-22 (VCP) Pedal stroke sensor (Delta S sensor) power source A17-23 No pin A17-24 (PSNC) Brake booster micro switch (Normal Close) signal input A17-25 (PSNO) Brake booster micro switch (Normal Open) signal input A17-26 (VYS) Yaw rate sensor power source A17-27 (STS) Brake booster micro switch power source A17-28 No pin A17-29 (SS2) Yaw rate sensor signal line (CANL) A17-30 (SS1) Yaw rate sensor signal line (CANH) A17-31 (BSTP) Brake booster solenoid power source A17-32 No pin A17-33 (FL-) Front wheel LH speed signal line A17-34 (FL+) Front wheel LH speed signal line A17-35 (BSW) Stop light control relay (BRK NO. 2) drive input A17-36 (RR+) Rear wheel RH speed signal line A17-37 (RR-) Rear wheel RH speed signal line A17-38 No pin A17-39 No pin A17-40 No pin A17-41 (STP) Stop light switch signal input A17-42 (RL-) Rear wheel LH speed signal line A17-43 (RL+) Rear wheel LH speed signal line A17-44 No pin A17-45 (FR+) Front wheel RH speed signal line A17-46 (FR-) Front wheel RH speed signal line A17-47 (+BS) Solenoid relay power supply - CHECK SKID CONTROL ECU
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Disconnect the A17 ECU connector.
- Measure the voltage or resistance according to the value(s) in the table below.
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 A17-1 (GND1) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω A17-2 (STPO) - Body ground BR - Body ground Stop light control relay (BRK NO. 1) signal input Ignition switch ON 11 to 14 V A17-3 (PKB2) - Body ground LG - Body ground Parking brake switch signal input Parking brake switch ON Below 1 Ω A17-6 (EXI2) - Body ground GR - Body ground A.D.D. detection switch signal input (4WD) A.D.D. detection switch ON Below 1 Ω A17-7 (D/G) - J17-7 (SIL) P - BE Diagnosis tester communication line Always Below 1 Ω A17-9 (IG1) - Body ground V - Body ground IG1 power supply Ignition switch ON 11 to 14 V A17-10 (TS) - J17-12 (TS) W - G Sensor check input Always Below 1 Ω A17-11 (STP2) - Body ground GR - Body ground Stop light switch and stop light control relay (BRK NO. 1) signal input Brake pedal depressed 8 to 14 V Brake pedal released Below 1.5 V A17-13 (CSW) - Body ground P - Body ground VSC OFF switch signal input VSC OFF switch ON Below 1 Ω A17-14 (SP1) - Body ground Y - Body ground Vehicle speed pulse signal output Always 11 to 14 V A17-16 (+BM) - Body ground L - Body ground Motor relay power supply Always 11 to 14 V A17-17 (BST) - A17-31 (BSTP) B - V Brake booster solenoid ground Always 1 to 2 Ω A17-18 (PIM) - A17-21 (E3) R - BE Pedal stroke sensor (Delta S sensor) input line Always 4 to 8 kΩ for 4WD: - A17-19 (GYAW) - P16-5 (GYAW)
P - G Yaw rate sensor ground Always Below 1 Ω for 2WD: - A17-19 (GYAW) - P15-5 (GYAW)
A17-21 (E3) - Body ground BE - Body ground Pedal stroke sensor (Delta S sensor) ground Always 10 kΩ or higher A17-22 (VCP) - A17-21 (E3) G - BE Pedal stroke sensor (Delta S sensor) power source Always 150 to 200 Ω A17-24 (PSNC) - A17-27 (STS) L - SB Brake booster micro switch (Normal Close) signal input Always Below 1 Ω A17-25 (PSNO) - A17-27 (STS) LG - SB Brake booster micro switch (Normal Open) signal input Brake pedal depressed Below 1 Ω for 4WD: - A17-26 (VYS) - P16-3 (VYS)
R - R Yaw rate sensor power source Always Below 1 Ω for 2WD: - A17-26 (VYS) - P15-3 (VYS)
A17-27 (STS) - A17-24 (PSNC) SB - L Brake booster micro switch power source Always Below 1 Ω for 4WD: - A17-29 (SS2) - P16-1 (YAW2)
W - W Yaw rate sensor signal line (CANL) Always Below 1 Ω for 2WD: - A17-29 (SS2) - P15-1 (YAW2)
for 4WD: - A17-30 (SS1) - P16-2 (YAW1)
B - B Yaw rate sensor signal line (CANH) Always Below 1 Ω for 2WD: - A17-30 (SS1) - P15-2 (YAW1)
A17-31 (BSTP) - A17-17 (BST) V - B Brake booster solenoid power source Always 1 to 2 Ω A17-33 (FL-) - b2-1 LG - B Front wheel LH speed signal line Always Below 1 Ω A17-34 (FL+) - b2-2 V - W Front wheel LH speed signal line Always Below 1 Ω A17-35 (BSW) - Body ground L - Body ground Stop light control relay (BRK NO. 2) drive input Ignition switch ON 11 to 14 V A17-36 (RR+) - b3-2 B - W Rear wheel RH speed signal line Always Below 1 Ω A17-37 (RR-) - b3-1 W - B Rear wheel RH speed signal line Always Below 1 Ω A17-41 (STP) - Body ground Y - Body ground Stop light switch signal input Brake pedal depressed 8 to 14 V Brake pedal released Below 1.5 V A17-42 (RL-) - b4-1 P - B Rear wheel LH speed signal line Always Below 1 Ω A17-43 (RL+) - b4-2 L - W Rear wheel LH speed signal line Always Below 1 Ω A17-45 (FR+) - b1-2 BE - W Front wheel RH speed signal line Always Below 1 Ω A17-46 (FR-) - b1-1 G - B Front wheel RH speed signal line Always Below 1 Ω A17-47 (+BS) - Body ground R - Body ground Solenoid relay power supply Always 11 to 14 V