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ECM Terminal Arrangement

  1. Check the collation ECM (smart key ECM assembly).
    Fig 1: ECM Connector Terminal Identification
    G10216225Courtesy of SUBARU OF AMERICA, INC.
    1. Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors.
    2. Measure the voltage and resistance according to the following table.
      NOTE: Remove the connectors and measure the voltage and resistance of the wiring harness side.
      Inspection terminals Input/output Terminal description Conditions Specified condition Related [Current Data Display & Save] item
      D48-2 (+B) - D48-11(GND) Input +B power supply Always 9.5 - 16V -
      D48-11 (GND) - chassis ground - Ground Always 1 Ωor less -

      If you cannot obtain the specified result, you have to suspect a defect in the wiring harness side. Otherwise, you have to remove the fuse.

    3. Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly).
    4. Measure the voltage according to the following table.
      NOTE:
      • Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to CUSTOMIZE PARAMETERS  )
      • Check the customize setting available for the entry & start system as well as the "ignition available area". (Refer to CUSTOMIZE PARAMETERS  )
      Inspection terminals Input/output Terminal description Conditions Specified condition Related [Current Data Display & Save] item
      D41-5 (IG2) - D48-11 (GND) Input IG power supply Engine switch OFF →ON (IG) 1 V or less →11 - 14 V IG
      D41-12 (CLG1) - D48-11 (GND) Output Output to the driver's side electrical key antenna (the collation ECM (smart key ECM assembly) sends a request signal (challenge) to the door electrical key antenna to create a detection area). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is inside the detection area(1).
      6. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to waveform 1) See  aFig 2 [Overhead + Driver Side] ([Keyless access system check])
      Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is outside the detection area(2).
      6. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to  awaveform 2) [Overhead + Driver Side] ([Keyless access system check])
      D41-13 (CG1B) - D48-11 (GND) Output Output to the driver's door electrical key antenna (terminals located on a component opposite from the CLG1 output terminal) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to  awaveform 2) [Overhead + Driver Side] ([Keyless access system check])
      D41-11 (CLG2) - D48-11 (GND) Output Output to the passenger's side electrical key antenna (the collation ECM (smart key ECM assembly) sends a request signal (challenge) to the door electrical key antenna to create a detection area). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is inside the detection area(1).
      6. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to waveform 1) See Fig 2 [Overhead + Passenger Side] ([Keyless access system check])
      Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is outside the detection area(2).
      6. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to  awaveform 2) [Overhead + Passenger Side] ([Keyless access system check])
      D41-10 (CG2B) - D48-11 (GND) Output Output to the passenger's door electrical key antenna (terminals located on a component opposite from the CLG2 output terminal) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. All doors are locked by a wireless operation.
      		 Pulse generation (Refer to  awaveform 2) [Overhead + Passenger Side] ([Keyless access system check])
      D41-3 (CLG5) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 1 (front floor) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Front Room] ([Keyless access system check])
      D41-2 (CG5B) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 1 (front floor) (terminals located on a component opposite from the CLG5 output terminal) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Front Room] ([Keyless access system check])
      D41-20 (TSW1) - D48-11 (GND) Input Driver's door lock sensor signal input (a signal is sent from the door lock sensor on the front door outer handle assembly to the collation ECM (smart ECM assembly). The collation ECM (smart key ECM assembly) sends out a 12 V pulse waveform from the terminal TSW every 40 milliseconds. Once the door lock sensor is touched, the pulse is shorted to the ground. Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Driver's door lock sensor, not touched →touched
      		 Pulse generation (Refer to  awaveform 4) [D-Door Trigger Switch]
      D41-8 (TSW2) - D48-11 (GND) Input Passenger's door lock sensor signal input (a signal is sent from the door lock sensor on the front door outer handle assembly to the collation ECM (smart ECM assembly). The collation ECM (smart key ECM assembly) sends out a 12 V pulse waveform from the terminal TSW every 40 milliseconds. Once the door lock sensor is touched, the pulse is shorted to the ground. Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Passenger's door lock sensor, not touched →touched
      		 Pulse generation (Refer to  awaveform 4) [P-Door Trigger Switch]
      D41-22 (SEN1) - D48-11 (GND) Input Driver's door unlock sensor signal input (if you touch the touch sensor when the system is in unlock standby mode, the door electrical key antenna sends a touch sensor input signal (detection signal) to the collation ECM (smart key ECM assembly)). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are locked.
      4. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle.
      5. Driver's door unlock sensor, not touched →touched
      		 Pulse generation (Refer to  awaveform 4) [D-Door Touch Sensor]
      D41-23 (SEN2) - D48-11 (GND) Input Passenger's door unlock sensor signal input (if you touch the touch sensor when the system is in unlock standby mode, the door electrical key antenna sends a touch sensor input signal (detection signal) to the collation ECM (smart key ECM assembly)). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are locked.
      4. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle.
      5. Passenger's door unlock sensor, not touched →touched
      		 Pulse generation (Refer to  awaveform 4) [P-Door Touch Sensor]
      D40-27 (TSW5) - D48-11 (GND) Input Trunk opening switch signal input Trunk opening switch assembly, OFF →ON Pulse generation (Refer to  awaveform 4) [Tr/B-Door Unlock SW]
      D40-11 (CLG6) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 2 (rear floor) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Rear Room] ([Keyless access system check])
      D40-10 (CG6B) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 2 (rear floor) (terminals located on a component opposite from the CLG6 output terminal). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Rear Room] ([Keyless access system check])
      D40-9 (CLG7) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 3 (antenna located inside the trunk) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Trunk] ([Keyless access system check])
      D40-8 (CG7B) - D48-11 (GND) Output Output to the indoor electrical key antenna assembly no. 3 (antenna located inside the trunk) (terminals located on a component opposite from the CLG7 output terminal) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 30 seconds
      		 Pulse generation (Refer to  awaveform 3) [Overhead + Trunk] ([Keyless access system check])
      D41-19 (POS1) - D48-11 (GND) Output Driver's door unlock sensor power (12 v (the voltage drops once the engine switch is turned ON (IG))). Engine switch OFF →ON (IG) 9 - 14 V →2 V or less -
      D41-21 (POS2) to D48-11 (GND) Output Passenger's door unlock sensor power (12 v (the voltage drops once the engine switch is turned ON (IG))). Engine switch OFF →ON (IG) 9 - 14 V →2 V or less -
      D40-5 (RCO) - D48-11 (GND) Output Output to the door control receiver (power for the door control receiver. When the receiver initiates operation, the collation ECM (smart key ECM assembly) outputs 5 V). Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. The electrical key transmitter sub-assembly is outside the detection area(2).
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      		 Pulse generation (Refer to  awaveform 5) -
      D40-17 (RDA) - D48-11 (GND) Input The door control receiver checks the data transmitted from the electrical key transmitter sub-assembly. The door control receiver then transmits the data to the ECM and intermittently shorts the 12 V signal sent from the collation ECM (smart key ECM assembly) to the ground. Description:
      1. The engine switch is OFF.
      2. All doors are locked.
      3. The electrical key transmitter sub-assembly is outside the detection area(2) and inside the indoor wireless function operating range*3.
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      		 Pulse generation (Refer to  awaveform 6) -
      D40-19 (RSSI) - D48-11 (GND) Input Communication channel switching circuit Description:
      1. The engine switch is OFF.
      2. All doors are locked.
      3. The electrical key transmitter sub-assembly is outside the detection area(2) and inside the indoor wireless function operating range*3.
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      		 Pulse generation (Refer to  awaveform 7)  
      D40-2 (CLG8) - D48-11 (GND) Output Output to the electrical key antenna (trunk exterior antenna) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Trunk opening switch assembly, OFF →ON
      		 Pulse generation (Refer to  awaveform 8) [Overhead + Trunk] ([Keyless access system check])
      D40-1 (CG8B) - D48-11 (GND) Output Output to the electrical key antenna (trunk exterior antenna) (terminals located on a component opposite from the CLG8 output terminal) Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Trunk opening switch assembly, OFF →ON
      		 Pulse generation (Refer to  awaveform 8) [Overhead + Trunk] ([Keyless access system check])
      (1) For a detailed description about the inside of the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
      (2) For a detailed description about the outside of the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
    5. Using an oscilloscope, check waveform 1. See Fig 2
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      1. Waveform 1 (reference)
        Fig 2: Waveform 1
        G10216226Courtesy of SUBARU OF AMERICA, INC.

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection
      • D41-12 (CLG1) - D48-11 (GND)
      • D41-11 (CLG2) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is inside the detection area(1).
      6. All doors are locked by a wireless operation.
      (1) For a detailed description on inside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
    6. Using an oscilloscope, check waveform 2. See Fig 3.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      1. Waveform 2 (reference)
        Fig 3: Waveform 2
        G10216227Courtesy of SUBARU OF AMERICA, INC.

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection
      • D41-12 (CLG1) - D48-11 (GND)
      • D41-11 (CLG2) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. The electrical key transmitter sub-assembly is outside the detection area(1).
      6. All doors are locked by a wireless operation.
      (1) For a detailed description on inside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection
      • D41-13 (CG1B) - D48-11 (GND)
      • D41-10 (CG2B) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. The electrical key transmitter sub-assembly is not inside the vehicle.
      5. All doors are locked by a wireless operation.

      *: For a detailed description on inside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )

    7. Using an oscilloscope, check waveform 3. See Fig 4.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 4: Waveform 3
      G10216228Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 3 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection
      • D41-3 (CLG5) - D48-11 (GND)
      • D41-2 (CG5B) - D48-11 (GND)
      • D40-11 (CLG6) - D48-11 (GND)
      • D40-10 (CG6B) - D48-11 (GND)
      • D40-9 (CLG7) - D48-11 (GND)
      • D40-8 (CG7B) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is not inside the vehicle.
      3. A door is open.
      4. A door is closed.
      5. Within 3 seconds
    8. Using an oscilloscope, check waveform 4. See Fig 5.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 5: Waveform 4
      G10216229Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 4 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D41-20 (TSW1) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Driver's door lock sensor, not touched →touched

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D41-8 (TSW2) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Passenger's door lock sensor, not touched →touched

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D41-22 (SEN1) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are locked.
      4. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle.
      5. Driver's door lock sensor, not touched →touched

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D41-23 (SEN2) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are locked.
      4. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle.
      5. Passenger's door unlock sensor, not touched →touched

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D40-27 (TSW5) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Trunk opening switch assembly, OFF →ON
    9. Using an oscilloscope, check waveform 5. See Fig 6.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 6: Waveform 5
      G10216230Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 5 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D40-5 (RCO) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. The electrical key transmitter sub-assembly is outside the detection area(1) and inside the indoor wireless function operating range(2).
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      (1) For a detailed description on outside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
      (2) For a detailed description on inside the wireless function operating range, refer to "OPERATION CHECK ". (Refer to )
    10. Using an oscilloscope, check waveform 6. See Fig 7
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 7: Waveform 6
      G10216231Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 6 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D40-17 (RDA) - D48-11 (GND)
      Tool setting 5V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. All doors are locked.
      3. The electrical key transmitter sub-assembly is outside the detection area(1) and inside the indoor wireless function operating range(2).
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      (1) For a detailed description on outside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
      (2) For a detailed description on inside the wireless function operating range, refer to "OPERATION CHECK ". (Refer to )
    11. Using an oscilloscope, check waveform 7. See Fig 8.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 8: Waveform 7
      G10216232Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 7 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection D40-19 (RSSI) - D48-11 (GND)
      Tool setting 5V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. All doors are locked.
      3. The electrical key transmitter sub-assembly is outside the detection area(1) and inside the indoor wireless function operating range(2).
      4. Lock/unlock button on the electrical key transmitter sub-assembly, not pressed →pressed
      (1) For a detailed description on outside the entry function detection area, refer to "OPERATION CHECK ". (Refer to )
      (2) For a detailed description on inside the wireless function operating range, refer to "OPERATION CHECK ". (Refer to )
    12. Using an oscilloscope, check waveform 8. See Fig 9.
      NOTE: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      Fig 9: Waveform 8
      G10216233Courtesy of SUBARU OF AMERICA, INC.
      1. Waveform 8 (reference)

      Measuring conditions

      TESTER CONNECTION MEASURING CONDITIONS

      Item Contents
      Tester connection
      • D40-2 (CLG8) - D48-11 (GND)
      • D40-1 (CG8B) - D48-11 (GND)
      Tool setting 2 V/DIV., 500 ms/DIV.
      Conditions Procedure:
      1. The engine switch is OFF.
      2. The electrical key transmitter sub-assembly is outside the vehicle.
      3. All doors are closed.
      4. Trunk opening switch assembly, OFF →ON
  2. Check the instrument panel junction block assembly and the main body ECM (multiplex network body ECM).
    Fig 10: Instrument Panel Junction Block Assembly And Main Body ECM (Multiplex Network Body ECM) Connector Terminal Identification
    G10216234Courtesy of SUBARU OF AMERICA, INC.
    1. Remove the main body ECM (multiplex network body ECM) from the instrument panel junction block assembly.
    2. Measure the voltage and resistance according to the following table.
      Terminal No. (symbol) Input/output Terminal description Conditions Specified condition Related [Current Data Display & Save] item
      MB-1 - chassis ground Input Battery power supply Always 11 - 14 V -
      MB-8 - chassis ground Input Engine switch power supply Engine switch is ON (IG) 11 - 14 V [Ignition]
      The engine switch is OFF. 1 V or less
      MB-9 - chassis ground Input ACC power supply The engine switch is on (ACC). 11 - 14 V [ACC SW]
      The engine switch is OFF. 1 V or less
      MB-11 - chassis ground Input Ground Always 1 Ωor less -
      MB-32 - chassis ground Input Battery power supply Always 11 - 14 V -
      D6-1 - Chassis ground - Ground Always 1 Ωor less -
      A73-4 - chassis ground - Ground Always 1 Ωor less -

      If you cannot get the specified result, there could be a problem in the wiring harnesses.

    3. Install the main body ECM (multiplex network body ECM) to the instrument panel junction block assembly. (Refer to REMOVAL )
    4. Refer to the value shown in table below and measure the voltage and waveform.
      Terminal No. (symbol) Input/output Terminal description Conditions Specified condition Related [Current Data Display & Save] item
      3A-28 - chassis ground Input Driver's side courtesy light switch Driver's door is open. 1 V or less [D Door Courtesy SW]
      Driver's door is closed Pulse generation
      3B-13 - chassis ground Input Passenger's side courtesy light switch The passenger's door is open. 1 V or less [Door Courtesy SW]
      The passenger's door is closed. Pulse generation
      3D-26 - chassis ground Input Trunk courtesy light switch The trunk is open. 1 V or less [Luggage Courtesy SW]
      Change the power mode to IG OFF, close the door, and close the trunk. 11 - 14 V
      D5-11 - chassis ground*1 Input Driver's door lock/unlock switch The driver's door key cylinder is in the lock position. 1 V or less -
      The driver's door key cylinder is in the neutral position after you change the power mode to IG OFF and close the door. Pulse generation (Refer to waveform 1 Fig 11 or waveform 2) Fig 12.
      D5-12 - chassis ground*1 Input Driver's door lock/unlock switch The driver's door key cylinder is in the lock position. 1 V or less -
      The driver's door key cylinder is in the neutral position after you change the power mode to IG OFF and close the door. Pulse generation (Refer to Fig 11 waveform 1 or  awaveform 3)
      3B-2 - chassis ground Output Door lock motor lock drive output (driver's side) The driver's side control switch is not pressed, and the driver's door key cylinder is in the neutral position*1.] 1 V or less -
      The driver's door control switch is pushed to the lock position, or the driver's door key cylinder is in the lock position*1.] 11 - 14 V
      3B-3 - chassis ground Output Door lock motor lock drive output (passenger's side) The driver's side control switch is not pressed, and the driver's door key cylinder is in the neutral position*1.] 1 V or less -
      The driver's door control switch is pushed to the lock position, or the driver's door key cylinder is in the lock position*1.] 11 - 14 V
      3B-6 - chassis ground Output Door lock motor lock drive output (trunk) The trunk open button on the electrical key transmitter sub-assembly is not pressed. 1 V or less The trunk is open.
      The trunk open button on the electrical key transmitter sub-assembly is pressed. 11 - 14 V
      3B-1 - chassis ground Output Door lock motor unlock drive output (driver's side) The driver's side control switch is not pressed, and the driver's door key cylinder is in the neutral position(1).] 1 V or less -
      The driver's door control switch is pushed to the unlock position, or the driver's door key cylinder is in the unlock position(1).] 11 - 14 V
      3B-4 - chassis ground Output Door lock motor unlock drive output (passenger's side) The driver's side control switch is not pressed, and the driver's door key cylinder is in the neutral position(1).] 1 V or less -
      The driver's door control switch is pushed to the unlock position, or the driver's door key cylinder is in the unlock position(1).] 11 - 14 V
      D6-11 - Chassis ground Input Driver's door unlock detection switch input The driver's door is locked. 1 V or less [D-Door Lock Pos SW]
      Change the power mode to IG OFF, close all doors, and lock the driver's door. Pulse generation (Refer to waveform 1. See Fig 11 or waveform 2). See Fig 12.
      D6-12 - Chassis ground Input Passenger's door unlock detection switch input Passenger's door is locked. 1 V or less [P-Door Lock Pos SW]
      Change the power mode to IG OFF, close all doors, and lock the passenger's door. Pulse generation (Refer to  awaveform 3)
      (1) w/key link switch
    5. Inspect using an oscilloscope.
      CAUTION: The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.
      1. Waveform 1 (reference)
        Item Contents
        Measuring terminal D6-11(L2) ↔ chassis ground
        Equipment setting 5 V/DIV., 20 ms/DIV.
        Measuring conditions IG OFF, all doors closed, driver's door locked
        Item Contents
        Measuring terminal D6-12(UL2) ↔ chassis ground
        Equipment setting 5 V/DIV., 20 ms/DIV.
        Measuring conditions IG OFF, all doors closed, passenger's door locked
        Fig 11: Waveform 1
        G10216235Courtesy of SUBARU OF AMERICA, INC.
      2. Waveform 2 (reference)
        Item Contents
        Measuring terminal D6-11(L2) ↔ chassis ground
        Equipment setting 5 V/DIV., 20 ms/DIV.
        Measuring conditions IG OFF, all doors closed, driver's door locked
        Item Contents
        Measuring terminal D6-12(UL2) ↔ chassis ground
        Equipment setting 5 V/DIV., 20 ms/DIV.
        Measuring conditions IG OFF, all doors closed, passenger's door locked
        Fig 12: Waveform 2
        G10216236Courtesy of SUBARU OF AMERICA, INC.
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