LEMON Manuals: Even more car manuals for everyone
Home >> Scion >> 2014 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System (Interior) (Diagnostics & Circuit Tests) >> Lighting System >> Terminals Of Ecu [12/2013 - ] >> Terminals Of Ecu [12/2013 - ]

Terminals Of Ecu [12/2013 - ]

  1. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (NETWORK GATEWAY ECU) 
    Fig 1: Identifying Instrument Panel Junction Block Assembly And Main Body ECU Connector Terminal Identification (Network Gateway ECU)
    GTY392266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *1 Instrument Panel Junction Block Assembly *2 Main Body ECU (Network Gateway ECU)
    1. Disconnect the D5 main body ECU (network gateway ECU) connector.
    2. Measure the voltage according to the value(s) in the table below.
      Terminal No. Wiring Color Terminal Description Condition Specified Condition
      D5-22 (ACC)*1 - Body ground W - Body ground ACC power supply Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V
      • *1: w/ Smart Key System
    3. Disconnect the 3A, 3C, 3E, A73 and D6 instrument panel junction block assembly and main body ECU (network gateway ECU) connectors.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. Wiring Color Terminal Description Condition Specified Condition
      3A-15 - Body ground W - Body ground IG power supply Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      3A-20 - Body ground SB - Body ground ACC power supply Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V
      3A-27 - Body ground G-R - Body ground Battery power supply Always 11 to 14 V
      3C-19 - Body ground L-R - Body ground Battery power supply Always 11 to 14 V
      3E-1 - Body ground B-R - Body ground Battery power supply Always 11 to 14 V

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

    5. Measure the resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3A-12 - Body ground B - Body ground Ground Always Below 1 Ω
      3A-13 - Body ground B - Body ground Ground Always Below 1 Ω
      A73-4 (GND) - Body ground B-Y - Body ground Ground Always Below 1 Ω
      D6-1 (GND) - Body ground B - Body ground Ground Always Below 1 Ω

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

    6. Reconnect the 3A, 3C, 3E, A73 and D6 instrument panel junction block assembly and main body ECU (network gateway ECU) connectors.
    7. Measure the voltage and check for pulses according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      3A-28 - Body ground V - Body ground Front door courtesy light switch LH input Front door LH open Below 1 V
      Front door LH closed 11 to 14 V
      3B-13 - Body ground GR - Body ground Front door courtesy light switch RH input Front door RH open Below 1 V
      Front door RH closed 11 to 14 V
      3D-26 - Body ground SB - Body ground Luggage compartment door courtesy light switch input Luggage compartment door open Below 1 V
      Luggage compartment door closed 11 to 14 V
      D5-7 (DOMR) - Body ground L - Body ground Illuminated entry drive output (to map light assembly) Map light switch in DOOR position and map light assembly on Below 1 V
      Map light switch in DOOR position and map light assembly off 11 to 14 V
      D5-28 (ILL)*2 - Body ground Y - Body ground Ignition key cylinder light drive output Ignition switch off, ignition key cylinder light off (when operated by illuminated entry system) 11 to 14 V
      Ignition switch off, ignition key cylinder light on (when operated by illuminated entry system) Below 1 V
      D6-11 (LSFD)*1 - Body ground W - Body ground Front door unlock detection switch LH input Ignition switch off, all doors closed and front door LH locked Pulse generation
      Front door LH unlocked Below 1 V
      D6-12 (LSFP)*1 - Body ground SB - Body ground Front door unlock detection switch RH input Ignition switch off, all doors closed and front door RH locked Pulse generation
      Front door RH unlocked Below 1 V
      • *1: w/ Smart Key System
      • *2: w/o Smart Key System

      If the result is not as specified, the main body ECU (network gateway ECU) or instrument panel junction block assembly may have a malfunction.

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    Fig 2: Checking Certification ECU (Smart Key ECU Assembly)
    GTY391326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D41 and D48 certification ECU (smart key ECU assembly) connectors.
    2. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D48-2 (+B) - D48-11 (GND) R - B +B power supply Always 9.5 to 16 V

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

    3. Measure the resistance according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D48-11 (GND) - Body ground B - Body ground Ground Always Below 1 Ω

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

    4. Reconnect the D41 and D48 certification ECU (smart key ECU assembly) connectors.
    5. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      D41-16 (SWIL) - D41-24 (AGND) LG - B Engine switch illumination drive output Engine switch illumination on 11 to 14 V
      Engine switch illumination off Below 1 V

      If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

scientia non olet · About LEMON Manuals