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Terminals Of Ecu

  1. CHECK NETWORK GATEWAY ECU 
    Fig 1: Identifying ECU Terminals
    G05821408Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K66 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BATT (K66-10) - GND (K66-24) G-W-B +B (BATT) power supply Always 10 to 14 V
      IG(K66-1) - Body ground B - Body ground Ignition power supply Power switch ON (IG) 10 to 14 V
      ACC (K66-2) - Body ground V - Body ground ACC power supply Power switch ON (ACC) 10 to 14 V
      SIL (K66-7) - Body ground O - Body ground Bus "+" line During transmission Pulse generation
      MPI1 (K66-4) - Body ground LG - Body ground MPX line Always 10 kΩ or higher
      MPI2 (K66-13) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPL1 (K66-5) - Body ground W - Body ground MPX line Always 10 kΩ or higher
      MPL2 (K66-14) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPD1 (K66-3) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      MPD2 (K66-12) - Body ground SB - Body ground MPX line Always 10 kΩ or higher
      GND (K66-24) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  2. CHECK ENGINE ROOM NO. 1 RELAY BLOCK, JUNCTION BLOCK (FRONT CONTROLLER) 
    Fig 2: Checking Engine Room No. 1 Relay Block, Junction Block (Front Controller)
    G05821409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 1X and 1Y junction block connectors.
    2. Measure the voltage and resistance of the wire harness side connectors.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      1Y-4 - 1X-11 G-R - W-B +B (FMB3) power supply Always 10 to 14 V
      1X-5 - 1X-11 GR-L - W-B MPX line Always 10 kΩ or higher
      1X-6 - 1X-11 GR-L - W-B MPX line Always 10 kΩ or higher
      1X-11 - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  3. CHECK MAIN BODY ECU LH (COWL SIDE JUNCTION BLOCK LH) 
    Fig 3: Checking Main Body ECU LH (Cowl Side Junction Block LH)
    G05821410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A30, V3, PA, PD and PL ECU connectors.
    2. Measure the resistance and voltage of the wire harness side connectors.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MPXB (PL-1) - GND (PA-14) G-R - W-B +B (MPXB) power supply Always 10 to 14 V
      MPX1 (V3-15) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPX4 (A30-6) - Body ground G-R - Body ground MPX line Always 10kΩ or higher
      GND (PA-14) - Body ground W-B - Body ground Ground Always Below 1 Ω
      SGND (PD-8) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  4. CHECK MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 
    Fig 4: Checking Main Body ECU RH (Cowl Side Junction Block RH)
    G05821411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the DA, DD, DK and K68 ECU connectors.
    2. Measure the resistance and voltage of the wire harness side connectors.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BECU (DK-5) - GND2 (DD-7) G-R - W-B +B (MPX-B) power supply Always 10 to 14 V
      MPX1 (DA-26) - GND2 (DD-7) GR - W-B MPX line Always 10 kΩ or higher
      MPX2 (K68-21) - GND2 (DD-7) G-W-B MPX line Always 10 kΩ or higher
      GSW (DA-7) - GND2 (DD-7) B-W-B MPX line Always 10 kΩ or higher
      GND2 (DD-7) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  5. CHECK NO. 1 JUNCTION BLOCK (MULTIPLEX NETWORK REAR ECU) 
    Fig 5: Checking No. 1 Junction Block (Multiplex Network Rear ECU)
    G05821412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the LB, LC and LF junction block connectors.
    2. Measure the resistance and voltage of the wire harness side connectors.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (LC-15) - Body ground B - Body ground +B (ECUB) power supply Always 10 to 14 V
      MPX1 (LC-21) - Body ground BR - Body ground MPX line Always 10 kΩ or higher
      MPX2 (LC-31) - Body ground) GR - Body ground MPX line Always 10 kΩ or higher
      PGND (LF-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      SG (LC-3) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  6. CHECK MULTIPLEX NETWORK FRONT DOOR ECU LH (FRONT DOOR ECU LH) 
    Fig 6: Identifying Multiplex Network Front Door ECU LH (Front Door ECU LH)
    G05821413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the M9 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (M9-4) - Body ground LG - Body ground +B (CPUB) power supply Always 10 to 14 V
      BDR (M9-6) - Body ground L - Body ground +B (BDR) power supply Always 10 to 14 V
      MPX1 (M9-8) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      MPX2 (M9-9) - Body ground L - Body ground MPX line Always 10 kΩ or higher
      GND (M9-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  7. CHECK MULTIPLEX NETWORK FRONT DOOR ECU RH (FRONT DOOR ECU RH) 
    Fig 7: Identifying Multiplex Network Front Door ECU RH (Front Door ECU RH)
    G05821414Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the M4 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (M4-4) - Body ground LG - Body ground +B (CPUB) power supply Always 10 to 14 V
      BDR (M4-6) - Body ground L - Body ground +B (BDR) power supply Always 10 to 14 V
      MPX1 (M4-8) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPX2 (M4-9) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      GND (M4-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  8. CHECK MULTIPLEX NETWORK REAR DOOR ECU LH (REAR DOOR ECU LH) 
    Fig 8: Identifying Multiplex Network Rear Door ECU LH (Rear Door ECU LH)
    G05821415Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O7 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (O7-4) - Body ground BR - Body ground +B (CPUB) power supply Always 10 to 14 V
      BDR (O7-6) - Body ground L - Body ground +B (BDR) power supply Always 10 to 14 V
      MPX1 (O7-8) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPX2 (O7-9) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      GND (O7-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  9. CHECK MULTIPLEX NETWORK REAR DOOR ECU RH (REAR DOOR ECU RH) 
    Fig 9: Identifying Multiplex Network Rear Door ECU RH (Rear Door ECU RH)
    G05821416Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O3 ECU connector.
    2. Measure the voltage the resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (O3-4) - Body ground G - Body ground +B (CPUB) power supply Always 10 to 14 V
      BDR (O3-6) - Body ground L - Body ground +B (BDR) power supply Always 10 to 14 V
      MPX1 (O3-8) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPX2 (O3-9) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      GND (O3-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  10. CHECK POSITION CONTROL ECU AND SWITCH (for Driver Side) 
    Fig 10: Identifying Position Control ECU And Switch (For Driver Side)
    G05821417Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the b7 and b8 ECU connectors.
    2. Measure the voltage and the resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (b8-5) - GND (b8-1) L-W-B +B power supply Always 10 to 14 V
      SYSB (b7-8) - Body ground G - Body ground +B (SYSB) power supply Always 10 to 14 V
      MPX1 (b7-1) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      GND (b8-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  11. CHECK POSITION CONTROL ECU AND SWITCH (for Front Passenger Side) 
    Fig 11: Identifying Position Control ECU And Switch (For Front Passenger Side)
    G05821418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the a7 and a6 ECU connectors.
    2. Measure the voltage and the resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (a6-5) - GND (a6-1) L - W-B +B power supply Always 10 to 14 V
      SYSB (a7-8) - Body ground R - Body ground +B (SYSB) power supply Always 10 to 14 V
      MPX1 (a7-1) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      GND (a6-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  12. CHECK AIR CONDITIONING NO. 2 AMPLIFIER ASSEMBLY (A/C ECU) 
    Fig 12: Identifying Air Conditioning No. 2 Amplifier Assembly (A/C ECU)
    G05821419Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K52 amplifier connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (K52-1) - GND (K52-20) L-W-B +B power supply Always 10 to 14 V
      IG+ (K52-21) - Body ground W - Body ground Power switch signal (IG) Power switch ON (IG) 10 to 14 V
      MPX+ (K52-30) - Body ground SB - Body ground MPX line Always 10 kΩ or higher
      MPX- (K52-31) - Body ground Y - Body ground MPX line Always 10kΩ or higher
      GND (K52-20) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  13. CHECK CENTER AIRBAG SENSOR 
    Fig 13: Identifying Center Airbag Sensor Connector Terminals
    G05821420Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K44 sensor connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      IG2 (K44-21) - E1 (K44-25) B-W-B Power switch signal (IG) Power switch ON (IG) 10 to 14 V
      MPX1 (K44-13) - Body ground R - Body ground MPX line Always 10 kΩ or higher
      MPX2 (K44-22) - Body ground R - Body ground MPX line Always 10kΩ or higher
      E1 (K44-25) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E2 (K44-26) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  14. CHECK COMBINATION METER (METER ECU) 
    Fig 14: Identifying Combination Meter (Meter ECU) Connector Terminals
    G05821421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K31 meter connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (K31-21) - Body ground B - Body ground +B (B) power supply Always 10 to 14 V
      B (K31-22) - Body ground L - Body ground +B (B) power supply Always 10 to 14 V
      MPX+ (K31-25) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      MPX- (K31-5) - Body ground SB - Body ground MPX line Always 10 kΩ or higher
      E2 (K31-40) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  15. CHECK SLIDING ROOF DRIVE GEAR (SLIDING ROOF CONTROL ECU) 
    Fig 15: Identifying Sliding Roof Drive Gear (Sliding Roof Control ECU)
    G05821422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the W7 drive gear connector.
    2. Measure the voltage and the resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      B (W7-5) - E (W7-7) L-W-B +B (B) power supply Always 10 to 14 V
      MPX1 (W7-10) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      E (W7-7) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  16. CHECK MULTIPLEX TILT AND TELESCOPIC ECU 
    Fig 16: Identifying Multiplex Tilt And Telescopic ECU Connector Terminals
    G05821423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K27 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (K27-9) - GND (K27-11) R-W-B +B (ECUB) power supply Always 10 to 14 V
      +B (K27-2) - GND (K27-11) L-W-B +B (+B) power supply Always 10 to 14 V
      MPX1 (K27-5) - Body ground GR - Body ground MPX line Always 10 kΩ or higher
      GND (K27-11) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  17. CHECK COMBINATION SWITCH (WINDSHIELD WIPER SWITCH) 
    Fig 17: Identifying Combination Switch (Windshield Wiper Switch)
    G05821424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K22 switch connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminals No.) Wiring Color Terminal Description Condition Specified Condition
      B (K22-1) - E (K22-5) GR - W-B +B (B) power supply Always 10 to 14 V
      MPX1 (K22-6) - Body ground G - Body ground MPX line Always 10 kΩ or higher
      MPX2 (K22-7) - Body ground O - Body ground MPX line Always 10 kΩ or higher
      E (K22-5) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  18. CHECK MULTIPLEX NETWORK MASTER SWITCH 
    Fig 18: Identifying Multiplex Network Master Switch Connector Terminals
    G05821425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the Q13 switch connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      CPUB (Q13-15) - E (Q13-12) P-W-B +B (CPUB) power supply Always 10 to 14 V
      E (Q13-12) - Body ground W-B - Body ground Ground Always Below 1 Ω
      MPX1 (Q13-7) - E (Q13-12) GR-W-B MPX line Always Below 1 Ω
      MPX2 (Q13-12) - E (Q13-12) P-W-B MPX line Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  19. CHECK POWER SOURCE CONTROL ECU 
    Fig 19: Identifying Power Source Control ECU Connector Terminals
    G05821426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K73 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      AM1 (K73-33) - GND2 (K73-6) O - W-B +B (AM1) power supply Always 10 to 14 V
      AM2 (K73-12) - GND2 (K73-6) BR - W-B +B (AM2) power supply Always 10 to 14 V
      MPX1 (K73-7) - Body ground LG - Body ground MPX line Always 10 kΩ or higher
      MPX2 (K73-24) - Body ground P - Body ground MPX line Always 10 kΩ or higher
      GND2 (K73-6) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  20. CHECK CERTIFICATION ECU 
    Fig 20: Identifying Certification ECU Connector Terminals
    G05821427Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the U28 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B1 (U28-1) - E (U28-17) R-W-B B power supply Always 10 to 14 V
      MPX1 (U28-27) - E (U28-17) BR - W-B MPX line Always 10 kΩ or higher
      MPX2 (U28-28) - E (U28-17) GR - W-B MPX line Always 10 kΩ or higher
      E (U28-17) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  21. CHECK TIRE PRESSURE WARNING ECU 
    Fig 21: Identifying Tire Pressure Warning ECU Connector Terminals
    G05821428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the K45 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      IG (K45-1) - GND (K45-7) G-W-B Power switch signal (IG) Always 10 to 14 V
      MPX1 (K45-6) - GND (K45-7) LG - W-B MPX line Always 10 kΩ or higher
      MPX2 (K45-12) - GND (K45-7) GR - W-B MPX line Always 10 kΩ or higher
      GND (K45-7) - Body ground W-B - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  22. CHECK AFS ECU 
    Fig 22: Identifying AFS ECU Connector Terminals
    G05821429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A29 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E1 (A29-1) - Body ground W-B - Body ground Ground Always Below 1 V
      IG (A29-2) - E1 (A29-1) B - W-B Power source circuit (to power switch) Power switch OFF Below 1 V
      Power switch ON (IG) 10 to 14 V
      MPX1 (A29-5) - E1 (A29-1) G-R - W-B MPX communication signal Power switch ON (IG) Signal waveform
      MPX2 (A29-6) - E1 (A29-1) GR-L - W-B MPX communication signal Power switch ON (IG) Signal waveform

      If the result is not as specified, there may be a malfunction on the wire harness side.

  23. CHECK CLEARANCE WARNING ECU 
    Fig 23: Identifying Clearance Warning ECU Connector Terminals
    G05821430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A38 ECU connector.
    2. Measure the resistance and voltage of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      IG (A38-8) - E (A38-27) G-Y - W-B Power switch signal (IG) Power switch ON (IG) 10 to 14 V
      E (A38-27) - Body ground W-B - Body ground ECU ground Always Below 1 Ω
      M+ (A38-26) - E (A38-27) GR - W-B BEAN communication Power switch ON (IG), Clearance sonar main switch ON Pulse generation (see TERMINALS OF ECU for waveform 4)

      If the result is not as specified, there may be a malfunction on the wire harness side.

  24. CHECK MAYDAY ECU 
    Fig 24: Identifying Mayday ECU Connector Terminals
    G05821431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the U45 ECU connector.
    2. Check the voltage and resistance of each terminal of the wire harness side connector.
      VOLTAGE AND RESISTANCE SPECIFICATIONS

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (U45-1) - Body ground GR - Body ground B power supply Always 10 to 14 V
      E (U45-12) - Body ground W-B - Body ground ECU ground Always Below 1 Ω
      MPX1 (U45-23) - Body ground GR - Body ground MPX communication signal Always 10 kΩ or higher

      If the result is not as specified, there may be a malfunction on the wire harness side.

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