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Terminals Of Ecu [08/2013 - 08/2016]

WARNING: This page is about a different car, the 2018 Toyota Corolla, 2017 Toyota Corolla, 2016 Toyota Corolla, 2015 Toyota Corolla, and 2014 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ENGINE SWITCH 
    Fig 1: Engine Switch Connector End View
    GTY440086Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage and resistance 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/DTC
      E60-6 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω -
      E60-7 (TXCT) - E60-6 (AGND) Input L - BR Immobilizer communication input Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      E60-8 (CODE) - E60-6 (AGND) Output P - BR Immobilizer communication output Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -
      E60-10 (VC5) - E60-6 (AGND) Input W - BR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V -

      *1: except Manual Transaxle

      *2: for Manual Transaxle

    2. Check for pulses according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      E60-7 (TXCT) - E60-6 (AGND) Input L - BR Signal input from certification ECU (smart key ECU assembly)
      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
      (See waveform 1)
      • BCC Malfunction
      • Abnormal Status
      • Different Encrypt Code
      • Different Serial Number
      • Frame Error
      • Response

        HINT: 

        If immobilizer key code verification communication is not performed correctly, the malfunction may be indicated by one or more of the Data List items listed above
      E60-8 (CODE) - E60-6 (AGND) Output P - BR Signal output to certification ECU (smart key ECU assembly)
      (Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly)      		 Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch* Pulse generation
      (See waveform 2)
      E60-10 (VC5) - E60-6 (AGND) Input W - BR Transponder key amplifier power supply
      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
      (See waveform 3)

      HINT: 

      *: Remove the transmitter battery before performing this inspection.

    3. Using an oscilloscope, check the waveform.

      HINT: 

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

      1. Waveform 1 (Reference)
        GTY429541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E60-7 (TXCT) - E60-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed
      2. Waveform 2 (Reference)
        GTY423391Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Electrical key transmitter sub-assembly held near engine switch
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E60-8 (CODE) - E60-6 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

        HINT: 

        *: Remove the transmitter battery before performing this inspection.

      3. Waveform 3 (Reference)
        GTY426468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E60-10 (VC5) - E60-6 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed
  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    Fig 2: Certification ECU (Smart Key ECU Assembly) Connector End View
    GTY454576Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E57 certification ECU (smart key ECU assembly) connector.
    2. Measure the resistance and 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/DTC
      E57-2 (+B) - E57-11 (E) Input L- W-B +B power supply Always 11 to 14 V -
      E57-10 (CUTB) - E57-11 (E) Input LG - W-B Stand-by power Always 11 to 14 V -
      E57-11 (E) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
    3. Reconnect the E57 certification ECU (smart key ECU assembly) connector.
    4. Measure the voltage and resistance according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      E59-5 (IG) - E57-11 (E) Input GR - W-B Ignition power supply Engine switch off → on (IG) Below 1 V → 11 to 14 V Ignition Switch
      E59-9 (TXCT) - E59-24 (AGND) Output L - BR Signal output to transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      • BCC Malfunction
      • Abnormal Status
      • Different Encrypt Code
      • Different Serial Number
      • Frame Error
      • Response
      E59-7 (CODE) - E59-24 (AGND) Input P - BR Signal input from transponder key amplifier Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      E59-1 (VC5) - E59-24 (AGND) Output W - BR Transponder key amplifier power supply Engine switch off, brake pedal*1 or clutch pedal*2 not depressed, 30 seconds or more elapsed after driver door opened and then closed Below 1 V
      E59-24 (AGND) - Body ground - BR - Body ground Transponder key amplifier ground Always Below 1 Ω

      *1: except Manual Transaxle

      *2: for Manual Transaxle

    5. Measure the voltage and check for pulses according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      E59-18 (IND) - E57-11 (E) Output R - W-B Security indicator output Engine switch off → on (IG) Pulse generation
      → Below 2 V      		 -
      E59-9 (TXCT) - E59-24 (AGND) Output L - BR Signal output to transponder key amplifier
      (Code sent from certification ECU (smart key ECU assembly) to transponder key amplifier built into engine switch, and then transmitted by transponder key amplifier antenna as radio waves)      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
      (See waveform 1)
      • BCC Malfunction
      • Abnormal Status
      • Different Encrypt Code
      • Different Serial Number
      • Frame Error
      • Response
      E59-7 (CODE) - E59-24 (AGND) Input P - BR Signal input from transponder key amplifier
      (Radio waves from transponder key amplifier built into engine switch used to detect key information. Key information then sent to certification ECU (smart key ECU assembly)      		 Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch* Pulse generation
      (See waveform 2)
      E59-1 (VC5) - E59-24 (AGND) Output W - BR Transponder key amplifier power supply
      (Power supplied from certification ECU (smart key ECU assembly) when transponder key amplifier built into engine switch activated)      		 Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed Pulse generation
      (See waveform 3)

      HINT: 

      *: Remove the transmitter battery before performing this inspection.

    6. Using an oscilloscope, check the waveform.

      HINT: 

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

      1. Waveform 1 (Reference)
        GTY429542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E59-9 (TXCT) - E59-24 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed
      2. Waveform 2 (Reference)
        GTY423391Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Electrical key transmitter sub-assembly held near engine switch
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E59-7 (CODE) - E59-24 (AGND)
        Tool Setting 2 V/DIV., 20 ms./DIV.
        Condition Engine switch off, engine switch pressed with electrical key transmitter sub-assembly held near engine switch*

        HINT: 

        *: Remove the transmitter battery before performing this inspection.

      3. Waveform 3 (Reference)
        GTY426469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E59-1 (VC5) - E59-24 (AGND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Engine switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds after engine switch pressed
  3. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) 
    Fig 3: Steering Lock ECU Connector End View
    GTY441876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance and voltage and check for pulses to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      E61-1 (GND) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      E61-3 (IGE) - E61-1 (GND) Input P - W-B Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly) Steering lock motor operates when all conditions met, and then door opened:
      • Shift lever in P
      • Steering unlocked
      • Engine switch turned off
      		 Pulse generation
      (See waveform 1)
      • Power Supply Short
      • Unlock Request Receive
      • Lock Request Receive
      E61-4 (SLP1) - E61-1 (GND) Output G - W-B Steering lock bar position signal (signal output from steering unlock sensor) Steering locked → unlocked* 11 to 14 V → Below 1.2 V Sensor Value
      E61-6 (IG2) - E61-1 (GND) Input GR - W-B IG signal (IG2 power supply input for steering lock motor) Engine switch off → on (IG) Below 1 V → 11 to 14 V
      • B2788
      • Ignition Switch
      E61-7 (B) - Body ground Output L - Body ground Constant power supply Always 11 to 14 V B2788

      HINT: 

      *: The steering locks when any door is opened with the shift lever in P and the engine switch off. The steering unlocks when the engine switch is turned on (ACC).

    2. Using an oscilloscope, check the waveform.

      HINT: 

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

      1. Waveform 1 (Reference)
        GTY367544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Steering lock motor not operating
        *b Steering lock motor operating
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E61-3 (IGE) - E61-1 (GND)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Condition Steering lock motor operates when both conditions met, and then door opened:
        • Shift lever in P
        • Electrical key transmitter sub-assembly carried, engine switch turned on (IG), steering unlocked, and then engine switch turned off
  4. CHECK ID CODE BOX (IMMOBILIZER CODE ECU) 
    Fig 4: E56 ID Code Box (Immobilizer Code ECU) Connector End View
    GTY433360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the E56 ID code box (immobilizer code ECU) connector.
    2. Measure the resistance and 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/DTC
      E56-1 (+B) - E56-5 (GND) Input W - BR +B power supply Always 11 to 14 V B2789
      E56-5 (GND) - Body ground - BR - Body ground Ground Always Below 1 Ω B2789
    3. Reconnect the E56 ID code box (immobilizer code ECU) connector.
    4. Measure the voltage and check for pulses according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      E56-3 (EFII) - E56-5 (GND) Input LG - BR EFI communication input
      (Signal input from ECM to ID code box (immobilizer code ECU)      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
      (See waveform 1)
      • B2799
      • B279A
      • Engine Start Request
      • EFI Code Receive
      E56-3 (EFII) - E56-5 (GND) Input LG - BR EFI communication input
      (Signal input from ECM to ID code box (immobilizer code ECU)      		 Engine switch off 11 to 14 V
      E56-4 (EFIO) - E56-5 (GND) Output P - BR EFI communication output
      (Signal output from ID code box (immobilizer code ECU) to ECM)      		 Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
      (See waveform 2)
      E56-4 (EFIO) - E56-5 (GND) Output P - BR EFI communication output
      (Signal output from ID code box (immobilizer code ECU) to ECM)      		 Engine switch off 11 to 14 V
    5. Using an oscilloscope, check the waveform.

      HINT: 

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

      1. Waveform 1 (Reference)
        GTY367336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E56-3 (EFII) - E56-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected
      2. Waveform 2 (Reference)
        GTY384373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection E56-4 (EFIO) - E56-5 (GND)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected
  5. CHECK ECM 
    Fig 5: ECM Connector End View
    GTY450500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
      Tester Connection Input/Output Wiring Color Terminal Description Condition Specified Condition Related Data List Item/DTC
      B33-16 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      A40-1 (BATT) - B33-16 (E1) Input B - BR +B power supply Always 11 to 14 V -
      A40-2 (+B) - B33-16 (E1) Input B - BR +B power supply Engine switch on (IG) 11 to 14 V -
      A40-3 (+B2) - B33-16 (E1) Input B - BR +B power supply Engine switch on (IG) 11 to 14 V -
      A40-29 (IMO) - B33-16 (E1) Input LG - BR ID code box (immobilizer code ECU) communication input Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
      (See waveform 1)      		 -
      A40-29 (IMO) - B33-16 (E1) Input LG - BR ID code box (immobilizer code ECU) communication input Engine switch off 11 to 14 V -
      A40-28 (IMI) - B33-16 (E1) Output P - BR ID code box (immobilizer code ECU) communication output Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected Pulse generation
      (See waveform 2)      		 -
      A40-28 (IMI) - B33-16 (E1) Output P - BR ID code box (immobilizer code ECU) communication output Engine switch off 11 to 14 V -
    2. Using an oscilloscope, check the waveform.

      HINT: 

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

      1. Waveform 1 (Reference)
        GTY367336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection A40-29 (IMO) - B33-16 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected
      2. Waveform 2 (Reference)
        GTY384373Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection A40-28 (IMI) - B33-16 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Condition Within 3 seconds of engine start or within 3 seconds of engine switch turned on (IG) after battery cable disconnected and reconnected
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