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Terminals Of Ecu [12/2013 - ]

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    Fig 1: Check Certification ECU (Smart Key ECU Assembly) Connector End View
    GTY330692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the G53 and G55 certification ECU (smart key ECU assembly) connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      HINT: 

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      G55-1 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G54-5 (+B) - G55-1 (E) Input BE - W-B +B power supply Power switch off 11 to 14 V -
      G54-4 (CUTB) - G55-1 (E) Input L - W-B Dark current cut pin* Power switch off 11 to 14 V -
      • *: In order to prevent the vehicle auxiliary battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle auxiliary battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of electric waves every 0.25 seconds. that form the detection area stops).

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

    3. Reconnect the G53 and G55 certification ECU (smart key ECU assembly) connector.
    4. Measure the voltage according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      G54-16 (IG) - G55-1 (E) Input V - W-B IG power supply Power switch off → on (IG) Below 1 V → 11 to 14 V Engine Switch
      G55-5 (CLG1) - G55-1 (E) Output L - W-B Output to driver door electrical key antenna
      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought inside detection area*1
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 1Fig 2) Over Head + Driver Side (key diagnostic mode)
      Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2Fig 3) Over Head + Driver Side (key diagnostic mode)
      G55-4 (CG1B) - G55-1 (E) Output P - W-B Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2Fig 3) Over Head + Driver Side (key diagnostic mode)
      G55-13 (CLG2) - G55-1 (E) Output L - W-B Output to front passenger door electrical key antenna
      (request signal (challenge) is sent to door electrical key antenna from certification ECU (smart key ECU assembly) to form detection area)      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought inside detection area*1
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 1Fig 2) Over Head + Passenger Side (key diagnostic mode)
      Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2Fig 3) Over Head + Passenger Side (key diagnostic mode)
      G55-12 (CG2B) - G55-1 (E) Output P - W-B Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*2
      6. All doors locked through wireless operation
      		 Pulse generation (See waveform 2Fig 3) Over Head + Passenger Side (key diagnostic mode)
      G55-11 (CLG5) - G55-1 (E) Output P - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Front Room (key diagnostic mode)
      G55-10 (CG5B) - G55-1 (E) Output Y - W-B Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Front Room (key diagnostic mode)
      G54-7 (TSW1) - G55-1 (E) Input LG - W-B Driver door lock sensor signal input
      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) send 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Driver door lock sensor not touched → touched
      		 Pulse generation (See waveform 5Fig 6) D-Door Trigger Switch
      G54-8 (TSW2) - G55-1 (E) Input LG - W-B Front passenger door lock sensor signal input
      (Sends signal from door lock sensor on front door outside handle assembly to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Front passenger door lock sensor not touched → touched
      		 Pulse generation (See waveform 5Fig 6) P-Door Trigger Switch
      G55-3 (SEN1) - G55-1 (E) Input BE - W-B Driver door unlock sensor signal input
      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors locked
      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle
      5. Driver door unlock sensor not touched → touched
      		 Pulse generation (See waveform 5Fig 6) D-Door Touch Sensor
      G55-2 (SEN2) - G55-1 (E) Input R - W-B Front passenger door unlock sensor signal input
      (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal (sensing) to certification ECU (smart key ECU assembly))      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors locked
      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle
      5. Front passenger door unlock sensor not touched → touched
      		 Pulse generation (See waveform 5Fig 6) P-Door Touch Sensor
      G53-22 (TSW5) - G55-1 (E) Input L - W-B Back door opener switch assembly (unlock switch) signal input Back door opener switch assembly (unlock switch) off → on Pulse generation (See waveform 5Fig 6) Tr/B-Door Unlock SW
      G53-21 (TSW6) - G55-1 (E) Input G - W-B Back door opener switch assembly (lock switch) signal input Back door opener switch assembly (lock switch) off → on Pulse generation (See waveform 5Fig 6) Tr/B-Door Lock SW
      G53-14 (CLG6) - G55-1 (E) Output LG - W-B Output to No. 2 indoor electrical key antenna assembly (steering column) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Rear Room (key diagnostic mode)
      G53-5 (CG6B) - G55-1 (E) Output V - W-B Output to No. 2 indoor electrical key antenna assembly (steering column) (terminal on opposite side of component from CLG6 output terminal) Proceed:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Rear Room (key diagnostic mode)
      G53-4 (CLG7) - G55-1 (E) Output W - W-B Output to No. 3 indoor electrical key antenna assembly (rear floor) Proceed:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Back Door (inside) (key diagnostic mode)
      G53-3 (CG7B) - G55-1 (E) Output BR - W-B Output to No. 3 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG7 output terminal) Proceed:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
      		 Pulse generation (See waveform 3Fig 4) Over Head + Back Door (inside) (key diagnostic mode)
      G55-15 (POS1) - G55-1 (E) Output W - W-B Driver door unlock sensor power source (12 V (drops when power switch turned on (IG))) Power switch off → on (IG) 9 to 14 V → Below 2 V -
      G55-16 (POS2) - G55-1 (E) Output GR - W-B Front passenger door unlock sensor power source (12 V (drops when power switch turned on (IG))) Power switch off → on (IG) 9 to 14 V → Below 2 V -
      G53-15 (RCO) - G55-1 (E) Output L - W-B Output to door control & tire pressure monitoring
      (Power supply for door control & tire pressure monitoring. Certification ECU (smart key ECU assembly) outputs 5 V when receiver starts operating.)      		 Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. Electrical key transmitter sub-assembly brought outside detection area*2 but kept inside wireless function operational area*3
      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed
      		 Pulse generation (See waveform 6Fig 7) -
      G53-6 (RDAM) - G55-1 (E) Input LG - W-B Door control & tire pressure monitoring verifies data received from electrical key transmitter sub-assembly. Door control & tire pressure monitoring sends data to ECU and intermittently grounds 12 V signal from certification ECU (smart key ECU assembly). Proceed:
      1. Power switch off
      2. All doors locked
      3. Electrical key transmitter sub-assembly brought outside detection area*2 but kept inside wireless function operational area*3
      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed
      		 Pulse generation (See waveform 7 k) -
      G53-7 (CSEL) - G55-1 (E) Output R - W-B Communication channel switching circuit. Procedure:
      1. Power switch off
      2. All doors closed
      		 Below 1 V → 4.5 to 6 V → Below 1 V Key diagnostic mode
      G53-2 (CLG8) - G55-1 (E) Output V - W-B Output to electrical key antenna (outside luggage) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
      		 Pulse generation (See waveform 4Fig 5) Over Head + Back Door
      or
      Over Head + Back Door (key diagnostic mode)
      G53-1 (CG8B) - G55-1 (E) Output L - W-B Output to electrical key antenna (outside luggage) (terminal on opposite side of component from CLG8 output terminal) Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
      		 Pulse generation (See waveform 4Fig 5) Over Head + Back Door
      or
      Over Head + Back Door (key diagnostic mode)
      • *1: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
      • *2: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
      • *3: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
    5. Using an oscilloscope, check waveform 1.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 2: Waveform 1
      GTY265256Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection
      • G55-5 (CLG1) - G55-1 (E)
      • G55-13 (CLG2) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought inside detection area*
      6. All doors locked through wireless operation
      • *: For details about the areas that are inside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
    6. Using an oscilloscope, check waveform 2.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 3: Waveform 2
      GTY258883Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection
      • G55-5 (CLG1) - G55-1 (E)
      • G55-13 (CLG2) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*
      6. All doors locked through wireless operation
      • *: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection
      • G55-4 (CG1B) - G55-1 (E)
      • G55-12 (CG2B) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Electrical key transmitter sub-assembly not inside vehicle
      5. Electrical key transmitter sub-assembly brought outside detection area*
      6. All doors locked through wireless operation
      • *: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
    7. Using an oscilloscope, check waveform 3.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 4: Waveform 3
      GTY262798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Door open
      *b After approximately 30 seconds from when the door is closed
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection
      • G55-11 (CLG5) - G55-1 (E)
      • G55-10 (CG5B) - G55-1 (E)
      • G53-14 (CLG6) - G55-1 (E)
      • G53-5 (CG6B) - G55-1 (E)
      • G53-4 (CLG7) - G55-1 (E)
      • G53-3 (CG7B) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly not inside vehicle
      3. Door is open
      4. Door is closed
      5. Within 30 seconds
    8. Using an oscilloscope, check waveform 4.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 5: Waveform 4
      GTY315145Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Power switch off, all doors closed and back door opener switch assembly off → on
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection
      • G53-2 (CLG8) - G55-1 (E)
      • G53-1 (CG8B) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Back door opener switch assembly off → on
    9. Using an oscilloscope, check waveform 5.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 6: Waveform 5
      GTY279494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a In actuality, sampling is being performed
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G54-7 (TSW1) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Driver door lock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G54-8 (TSW2) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors closed
      4. Front passenger door lock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G55-3 (SEN1) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors locked
      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle
      5. Driver door unlock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G55-2 (SEN2) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. All doors locked
      4. Electrical key transmitter sub-assembly not sufficiently close to vehicle
      5. Front passenger door unlock sensor not touched → touched
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G53-22 (TSW5) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Back door opener switch assembly (unlock switch) off → on
      WAVEFORM 5 (REFERENCE)

      Item Content
      Tester Connection G53-21 (TSW6) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV
      Condition Back door opener switch assembly (lock switch) off → on
    10. Using an oscilloscope, check waveform 6.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 7: Waveform 6
      GTY278665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Before lock or unlock button of electrical key transmitter sub-assembly pressed
      *b After lock or unlock button of electrical key transmitter sub-assembly pressed
      WAVEFORM 6 (REFERENCE)

      Item Content
      Tester Connection G53-15 (RCO) - G55-1 (E)
      Tool Setting 2 V/DIV., 500 ms/DIV.
      Condition Procedure:
      1. Power switch off
      2. Electrical key transmitter sub-assembly brought outside vehicle
      3. Electrical key transmitter sub-assembly brought outside detection area*1 but kept inside wireless function operational area*2
      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed
      • *1: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
      • *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
    11. Using an oscilloscope, check waveform 7.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 8: Waveform 7
      GTY277201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Before lock or unlock button of electrical key transmitter sub-assembly pressed
      *b After lock or unlock button of electrical key transmitter sub-assembly pressed
      WAVEFORM 7 (REFERENCE)

      Item Content
      Tester Connection G53-6 (RDAM) - G55-1 (E)
      Tool Setting 5 V/DIV., 500 ms/DIV.
      Condition Proceed:
      1. Power switch off
      2. All doors locked
      3. Electrical key transmitter sub-assembly brought outside detection area*1 but kept inside wireless function operational area*2
      4. Lock or unlock button of electrical key transmitter sub-assembly not pressed → pressed
      • *1: For details about the areas that are outside the entry function detection area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
      • *2: For details about the areas that are inside the wireless function operational area, refer to Operation Check. Refer to OPERATION CHECK [12/2013 - ] .
  2. CHECK POWER MANAGEMENT CONTROL ECU 
    Fig 9: A39, G57 And G58 Connectors
    GTY340223Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A39, G57 and G58 connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      A39-2 (IG2D) - Body ground P - Body ground IG2 relay operation signal Always 131 to 387 Ω
      A39-23 (STP) - Body ground L - Body ground Stop light switch signal Brake pedal depressed 11 to 14 V
      A39-23 (STP) - Body ground L - Body ground Stop light switch signal Brake pedal released Below 1 V
      G57-1 (AM22) - Body ground B - Body ground +B power supply Always 11 to 14 V
      G58-7 (AM21) - Body ground B - Body ground +B power supply Always 11 to 14 V
      G58-16 (SLP) - Body ground P - Body ground Steering lock actuator assembly position signal Always 10 kΩ or higher
      G57-6 (E1) - Body ground BR - Body ground Ground Always Below 1 Ω
      G58-17 (SSW2) - Body ground SB - Body ground Power switch signal Power switch pushed Below 1 Ω
      G58-17 (SSW2) - Body ground SB - Body ground Power switch signal Power switch not pushed 10 kΩ or higher
      G57-7 (SSW1) - Body ground V - Body ground Power switch signal Power switch pushed Below 1 Ω
      G58-2 (IG1D) - Body ground SB - Body ground IG1 relay operation signal Always 50.87 to 72.17 Ω

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

    3. Reconnect the A39, G57 and G58 connectors.
    4. Measure the voltage and check pulses according to the value(s) in the table below.
      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      A39-2 (IG2D) - G57-6 (E1) P - BR IG2 signal Power switch on (IG) Output voltage at terminal AM21 or AM22 is -2 V or more
      A39-2 (IG2D) - G57-6 (E1) P - BR IG2 signal Power switch on (ACC) Below 1 V
      G58-16 (SLP) - G57-6 (E1) P - BR Steering lock actuator assembly signal Steering lock released Below 1.2 V
      G58-16 (SLP) - G57-6 (E1) P - BR Steering lock actuator assembly signal Shift lever in P
      Steering lock locked      		 11 to 14 V
      G57-15 (P2) - G57-6 (E1) G - BR Shift lock signal Shift lever in P 9 V or higher
      G57-15 (P2) - G57-6 (E1) G - BR Shift lock signal Shift lever not in P Below 1.5 V
      G58-17 (SSW2) - G57-6 (E1) SB - BR Power switch signal Power switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more
      G58-17 (SSW2) - G57-6 (E1) SB - BR Power switch signal Power switch pushed Below 1 V
      G57-7 (SSW1) - G57-6 (E1) V - BR Power switch signal Power switch not pushed Output voltage at terminal AM21 or AM22 is -2 V or more
      G57-7 (SSW1) - G57-6 (E1) V - BR Power switch signal Power switch pushed Below 1 V
      G58-1 (ACCD) - G57-6 (E1) L - BR ACC signal Power switch on (ACC) 8 to 14 V
      G58-1 (ACCD) - G57-6 (E1) L - BR ACC signal Power switch off Below 1 V
      G58-2 (IG1D) - G57-6 (E1) SB - BR IG1 signal Power switch on (IG) 8 to 14 V
      G58-2 (IG1D) - G57-6 (E1) SB - BR IG1 signal Power switch on (ACC) Below 1 V
      G57-14 (SPDI) - G57-6 (E1) SB - BR Vehicle speed signal Power switch on (IG), wheel rotated slowly Pulse generation
      (See waveform 1 1)

      If the result is not as specified, the ECU may be malfunctioning.

    5. Using an oscilloscope, check the signal waveform of the ECU.
      1. Waveform 1
        Fig 10: Waveform 1
        GTY138951Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Tester Connection G57-14 (SPDI) - G57-6 (E1)
        Tool Setting 5 V/DIV., 10 ms./DIV.
        Vehicle Condition Driving at approx. 20 km/h (12 mph)

        HINT: 

        The wavelength becomes shorter as the vehicle speed increases.

  3. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 
    Fig 11: Main Body ECU (Multiplex Network Body ECU) Connector End View
    GTY338678Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      HINT: 

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      MB-11 (GND1) - Body ground - - Ground Always Below 1 Ω -
      MB-30 (BECU) - Body ground Input - Auxiliary battery power supply (for CPU) Always 11 to 14 V -
      MB-29 (ACC) - Body ground Input - ACC power supply Power switch on (ACC) 11 to 14 V ACC SW
      MB-32 (IG) - Body ground Input - Power switch power supply Power switch on (IG) 11 to 14 V IG SW

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

    3. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.
    4. Measure the voltage according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item
      3D-36 (FLCY) - Body ground Input R - Body ground Front door LH courtesy light switch input Front door LH open Below 1 V FL Door Courtesy
      Front door LH closed Pulse generation (See waveform 3 or 4Fig 14)
      G59-19 (FRCY) - Body ground Input R - Body ground Front door RH courtesy light switch input Front door RH open Below 1 V FR Door Courtesy
      Front door RH closed Pulse generation (See waveform 3 or 4Fig 14)
      G59-1 (LCTY) - Body ground Input L - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V RL Door Courtesy
      Rear door LH closed Pulse generation (See waveform 3 or 4Fig 14)
      G59-6 (RCTY) - Body ground Input G - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V RR Door Courtesy
      Rear door RH closed Pulse generation (See waveform 1 or 2Fig 13)
      3D-35 (BCTY) - Body ground Input B - Body ground Back door courtesy light switch input Back door open Below 1 V Back door Courtesy SW
      Power switch off, all doors closed and back door closed Pulse generation (See waveform 1 or 2Fig 12)
      G59-11 (L2) - Body ground Input SB - Body ground Driver door key-linked lock input Driver door key cylinder in lock position Below 1 V Door Key SW-Lock
      Power switch off, all doors closed and driver door key cylinder in neutral position Pulse generation (See waveform 3 or 4Fig 14)
      G59-24 (UL3) - Body ground Input G - Body ground Driver door key-linked unlock input Driver door key cylinder in unlock position Below 1 V D Door Key SW-UL
      Power switch off, all doors closed and driver door key cylinder in neutral position Pulse generation (See waveform 1 or 2Fig 12)
      3D-11 (ACT+) - Body ground Output GR - Body ground Door lock motor lock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Lock side of driver door control switch pushed or driver door key cylinder in lock position 11 to 14 V
      3B-1 (ACT+) - Body ground Output Y - Body ground Door lock motor lock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Lock side of driver door control switch pushed or driver door key cylinder in lock position 11 to 14 V
      3B-2 (ACT+) - Body ground Output V - Body ground Door lock motor lock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Lock side of driver door control switch pushed or driver door key cylinder in lock position 11 to 14 V
      3D-12 (ACT+) - Body ground Output L - Body ground Door lock motor lock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Lock side of driver door control switch pushed or driver door key cylinder in lock position 11 to 14 V
      3B-4 (ACTD) - Body ground Output L - Body ground Driver door lock motor unlock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position 11 to 14 V
      3D-9 (TR+) - Body ground Output Y - Body ground Driver door lock motor unlock drive output Back door closed Below 1 V -
      Back door open 11 to 14 V
      3D-7 (ACT-) - Body ground Output LG - Body ground Door lock motor unlock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position 11 to 14 V
      3B-3 (ACT-) - Body ground Output R - Body ground Door lock motor unlock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position 11 to 14 V
      3D-8 (ACT-) - Body ground Output P - Body ground Door lock motor unlock drive output Driver door control switch not pushed and driver door key cylinder in neutral position Below 1 V -
      Unlock side of driver door control switch pushed or driver door key cylinder in unlock position 11 to 14 V
      G59-7 (LSFL) - Body ground Input L - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V FL Door Lock Pos
      Power switch off, all doors closed and front door LH locked Pulse generation (See waveform 3 or 4Fig 14)
      G59-18 (LSFR) - Body ground Input L - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V FR Door Lock Pos
      Power switch off, all doors closed and front door RH locked Pulse generation (See waveform 1 or 2Fig 12)
      3D-24 (LSR) - Body ground Input Y - Body ground Rear door LH unlock detection switch input Rear door LH or RH unlocked Below 1 V RL-Door Lock Pos SW
      Power switch off, all doors closed and rear door LH and RH locked Pulse generation (See waveform 3 or 4Fig 14)
      3D-25 (LSR) - Body ground Input V - Body ground Rear door RH unlock detection switch input Rear door RH or LH unlocked Below 1 V RR-Door Lock Pos SW
      Power switch off, all doors closed and rear door RH and LH locked Pulse generation (See waveform 3 or 4Fig 15)

      If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may be malfunctioning.

    5. Using an oscilloscope, check waveform 1.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 12: Waveform 1
      GTY319360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection 3D-35 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and back door closed
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection G59-6 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Rear door RH closed
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection G59-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and driver door key cylinder in neutral position
      WAVEFORM 1 (REFERENCE)

      Item Content
      Tester Connection G59-18 (LSFR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and front door RH locked
    6. Using an oscilloscope, check waveform 2.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 13: Waveform 2
      GTY322547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection 3D-35 (BCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and back door closed
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection G59-6 (RCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Rear door RH closed
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection G59-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and driver door key cylinder in neutral position
      WAVEFORM 2 (REFERENCE)

      Item Content
      Tester Connection G59-18 (LSFR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and front door RH locked
    7. Using an oscilloscope, check waveform 3.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 14: Waveform 3
      GTY318716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection 3D-36 (FLCY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Front door LH closed
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection G59-19 (FRCY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Front door RH closed
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection G59-1 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Rear door LH closed
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection G59-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and driver door key cylinder in neutral position
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection G59-7 (LSFL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and front door LH locked
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection 3D-24 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and rear door LH and RH locked
      WAVEFORM 3 (REFERENCE)

      Item Content
      Tester Connection 3D-25 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and rear door RH and LH locked
    8. Using an oscilloscope, check waveform 4.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      Fig 15: Waveform 4
      GTY322687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection 3D-36 (FLCY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Front door LH closed
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection G59-19 (FRCY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Front door RH closed
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection G59-1 (LCTY) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Rear door LH closed
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection G59-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and driver door key cylinder in neutral position
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection G59-7 (LSFL) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and front door LH locked
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection 3D-24 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and rear door LH and RH locked
      WAVEFORM 4 (REFERENCE)

      Item Content
      Tester Connection 3D-25 (LSR) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and rear door RH and LH locked
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