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Terminals Of Ecu [12/2013 - ]

  1. CHECK POWER MANAGEMENT CONTROL ECU 
    Fig 1: Identifying Power Management Control ECU Connector End View
    GTY340216Courtesy 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.

      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
      A39-2 (IG2D) - Body ground Output P - Body ground IG2 signal 20°C (68°F) Approximately 302.97 Ω IG2 Relay Monitor(Outside)
      A39-23 (STP) - Body ground Input L - Body ground Stop light switch signal Brake pedal released → Brake pedal depressed 9 V or higher → 1 V or less Stop Light Switch1
      G57-1 (AM22) - Body ground Input B - Body ground Power source Power switch off 11 to 14 V -
      G58-7 (AM21) - Body ground Input B - Body ground Power source Power switch off 11 to 14 V -
      G58-16 (SLP) - Body ground Input P - Body ground Steering lock position signal Always 10 kΩ or higher Steering Unlock Switch
      G57-5 (E01) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G58-5 (E02) - Body ground - W-B - Body ground Ground Always Below 1 Ω -
      G57-6 (E1) - Body ground - BR - Body ground Ground Always Below 1 Ω -
      G58-17 (SSW2) - Body ground Input SB - Body ground SSW2 contact signal
      HINT: 
      Backup for SSW1. Behaves the same way as SSW1.      		 Power switch pushed → Power switch not pushed Below 1 Ω → 10 kΩ or higher Start Switch2
      G57-7 (SSW1) - Body ground Input V - Body ground SSW1 contact signal Power switch pushed → Power switch not pushed Below 1 Ω → 10 kΩ or higher Start Switch1
      G58-2 (IG1D) - Body ground Output SB - Body ground IG1 signal 20°C (68°F) 40.74 to 59.49 Ω IG1 Relay Monitor(Outside)
      G58-1 (ACCD) - Body ground Output L - Body ground ACC signal 20°C (68°F) 81.49 to 118.98 Ω ACC Relay Monitor
      G57-14 (SPDI) - G57-6 (E1) Input SB - BR Vehicle speed signal Always 30 kΩ or higher Vehicle Speed Signal
      G57-15 (P2) - G57-6 (E1) Input G - BR P position signal Always 40 kΩ or higher → 200 Ω or less Shift P Signal
    3. Reconnect the A39, G57 and G58 connectors.
    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
      A39-2 (IG2D) - G57-6 (E1) Output P - BR IG2 signal Power switch on (ACC) → Power switch on (IG) 1 V or less → 9 V or higher IG2 Relay Monitor(Outside)
      G58-16 (SLP) - G57-6 (E1) Input P - BR Steering lock position signal Steering wheel locked → Steering wheel unlocked*1 11 to 14 V → 1.2 V or less Steering Unlock Switch
      G58-6 (SLR+) - G57-6 (E1) Output L - BR Steering lock motor operation command signal (Steering lock motor operation permission signal sent from the certification ECU (smart key ECU assembly)) Steering lock motor stopped → Steering lock motor operating → Steering lock motor stopped*2 Pulse generation (See waveform 1Fig 2) -
      G58-17 (SSW2) - G57-6 (E1) Input SB - BR SSW2 contact signal
      HINT: 
      Backup for SSW1. Behaves the same way as SSW1.      		 Power switch not pushed → Power switch pushed 9 V or higher → 1 V or less Start Switch2
      G57-7 (SSW1) - G57-6 (E1) Input V - BR SSW1 contact signal Power switch not pushed → Power switch pushed 9 V or higher → 1 V or less Start Switch1
      G58-1 (ACCD) - G57-6 (E1) Output L - BR ACC signal Power switch off → Power switch on (ACC) 1 V or less → 8.5 V or higher ACC Relay Monitor
      G58-2 (IG1D) - G57-6 (E1) Output SB - BR IG1 signal Power switch on (ACC) → Power switch on (IG) 1 V or less → 9 V or higher IG1 Relay Monitor(Outside)
      G57-14 (SPDI) - G57-6 (E1) Input SB - BR Vehicle speed signal Vehicle being driven at approx. 5 km/h (3 mph) Pulse generation
      (See waveform 2Fig 3)      		 Vehicle Speed Signal
      G57-15 (P2) - G57-6 (E1) Input G - BR P position signal Shift lever in P → Shift lever not in P Pulse generation (See waveform 3Fig 4) Shift P Signal
      G58-20 (IMO) - G57-6 (E1) Output BE - BR ID code box communication output
      (Signal output from power management control ECU to ID code box)      		 Power switch off 11 to 14 V -
      Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected Pulse generation
      (See waveform 4Fig 5)
      G58-21 (IMI) - G57-6 (E1) Input LG - BR ID code box communication input
      (Signal input from ID code box to power management control ECU)      		 Power switch off 11 to 14 V
      Power switch on (IG) Pulse generation
      (See waveform 5Fig 6)

      HINT: 

      • *1: When the power switch is turned off with the shift lever in P and any of the doors are opened or closed, the steering wheel will be locked. When the power switch is turned on (ACC) or on (IG), the steering wheel will be unlocked.
      • *2: When all of the following conditions are met, open any of the doors to operate the steering lock motor.
        • The shift lever is in P.
        • The power switch is off.
        • While carrying the electrical key transmitter sub-assembly, the power switch is turned on (IG) and the steering is unlocked.
    5. Using an oscilloscope, check the waveform of the ECU.
      1. Waveform 1
        Fig 2: Waveform 1
        GTY261034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Tester Connection G58-6 (SLR+) - G57-6 (E1)
        Tool Setting 2 V/DIV., 200 ms./DIV.
        Vehicle Condition Steering lock motor stopped →
        Steering lock motor operating →
        Steering lock motor stopped
        TEXT IN ILLUSTRATION

        *a Steering lock motor not operating
        *b Steering lock motor operating

        HINT: 

        When all of the following conditions are met, open any of the doors to operate the steering lock motor.

        • The shift lever is in P.
        • While carrying the electrical key transmitter sub-assembly, the power switch is turned on (IG) and the steering is unlocked.
        • The power switch is off.
      2. Waveform 2
        Fig 3: Waveform 2
        GTY287230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Tester Connection G57-14 (SPDI) - G57-6 (E1)
        Tool Setting 5 V/DIV., 20 ms./DIV.
        Vehicle Condition Power switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)

        HINT: 

        The wavelength becomes shorter as the vehicle speed increases.

      3. Waveform 3
        Fig 4: Identifying Waveform 3
        GTY281423Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Item Content
        Tester Connection G57-15 (P2) - G57-6 (E1)
        Tool Setting 2 V/DIV., 50 ms./DIV.
        Vehicle Condition Shift lever in P →
        Shift lever not in P
        TEXT IN ILLUSTRATION

        *a Shift lever in P
        *b Shift lever not in P
      4. Waveform 4
        Fig 5: Waveform 4
        GTY320114Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection G58-20 (IMO) - G57-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Vehicle Condition Within 3 seconds of hybrid control system start or within 3 seconds of power switch turned on (IG) after auxiliary battery cable disconnected and reconnected
      5. Waveform 5
        Fig 6: Waveform 5
        GTY321629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Approximately 160 ms *b Approximately 270 ms
        MEASUREMENT CONDITION

        Item Content
        Tester Connection G58-21 (IMI) - G57-6 (E1)
        Tool Setting 2 V/DIV., 500 ms./DIV.
        Vehicle Condition Power switch on (IG)
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