LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2013 >> Prius Two >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Wireless Door Lock Control System (Diagnostics - Introduction) (Plug-In)) >> Wireless Door Lock Control System >> Terminals Of Ecu >> Terminals Of Ecu
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Terminals Of Ecu

WARNING: This page is about a different variant/trim than selected.
  1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Disconnect the 2B and 2C instrument panel junction block assembly connectors.
      Fig 1: Instrument Panel Junction Block Assembly & Main Body ECU Connector Terminal Identification
      GTY338660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the MB main body ECU (multiplex network body ECU) connectors.
    3. 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 connectors disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2C-18 (BECU) - Body ground Y - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      MB-31 (ALTB) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      MB-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      MB-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V
      MB-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      MB-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      2B-6 (GND1) - Body ground W-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 MB main body ECU (multiplex network body ECU) connectors.
    5. Reconnect the 2B and 2C instrument panel junction block assembly connectors.
    6. Measure the voltage according to the value(s) in the table below.
      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2D-35 (FLCY) - Body ground V - Body ground Driver side door courtesy switch input Driver side door open Below 1 V
      2D-35 (FLCY) - Body ground V - Body ground Driver side door courtesy switch input Driver side door closed 11 to 14 V
      2D-36 (FRCY) - Body ground BR - Body ground Front passenger side door courtesy switch input Front passenger side door open Below 1 V
      2D-36 (FRCY) - Body ground BR - Body ground Front passenger side door courtesy switch input Front passenger side door closed 11 to 14 V
      L7-6 (LRCY) - Body ground G - Body ground Rear door LH and RH courtesy light switch input Rear door LH or RH open Below 1 V
      L7-6 (LRCY) - Body ground G - Body ground Rear door LH and RH courtesy light switch input Rear door LH or RH closed 11 to 14 V
      L7-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door open Below 1 V
      L7-19 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      L7-11 (L2) - Body ground G - Body ground Driver side door key-linked lock input Driver side door key cylinder turned to lock Below 1 V
      L7-11 (L2) - Body ground G - Body ground Driver side door key-linked lock input Driver side door key cylinder off 11 to 14 V
      L7-24 (UL3) - Body ground V - Body ground Driver side door key-linked unlock input Driver side door key cylinder turned to unlock Below 1 V
      L7-24 (UL3) - Body ground V - Body ground Driver side door key-linked unlock input Driver side door key cylinder off 11 to 14 V
      L7-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch locked Below 1 V
      L7-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V
      L7-10 (UL1) - Body ground BR - Body ground Front passenger side door control switch input Front passenger side door control switch unlocked Below 1 V
      L7-10 (UL1) - Body ground BR - Body ground Front passenger side door control switch input Front passenger side door control switch off 11 to 14 V
      2B-3 (ACT+) - Body ground LG - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2B-3 (ACT+) - Body ground LG - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver side door key cylinder locked 11 to 14 V
      2B-5 (ACTD) - Body ground B - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2B-5 (ACTD) - Body ground B - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder unlocked 11 to 14 V
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver door) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver door) Multiplex network master switch (door control switch) or driver side door key cylinder unlocked 11 to 14 V
      L7-18 (LSFR) - Body ground LG - Body ground Front passenger side door lock position switch input Front passenger side door unlocked Below 1 V
      L7-18 (LSFR) - Body ground LG - Body ground Front passenger side door lock position switch input Power switch off, all doors closed and front passenger side door locked 11 to 14 V
      2D-25 (LSR) - Body ground GR - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V
      2D-25 (LSR) - Body ground GR - Body ground Rear door LH lock position switch input Power switch off, all doors closed and rear door LH locked 11 to 14 V
      2B-29 (LSR) - Body ground GR - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V
      2B-29 (LSR) - Body ground GR - Body ground Rear door RH lock position switch input Power switch off, all doors closed and rear door RH locked 11 to 14 V
      L7-7 (LSFL) - Body ground GR - Body ground Driver door lock position switch input Driver door unlocked Below 1 V
      L7-7 (LSFL) - Body ground GR - Body ground Driver door lock position switch input Power switch off, all doors closed and driver door locked 11 to 14 V
      2C-23 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer off Below 1 V
      2C-23 (BZR) - Body ground R - Body ground Wireless door lock buzzer signal Wireless door lock buzzer on Pulse generation
      L7-3 (HAZ) - Body ground Y - Body ground Turn signal flasher relay signal Any transmitter switch not pressed 11 to 14 V
      L7-3 (HAZ) - Body ground Y - Body ground Turn signal flasher relay signal Any transmitter switch pressed Below 1 V

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

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    Fig 2: L62 And L63 Certification ECU (Smart Key ECU Assembly) Connector Terminal Identification
    GTY219904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L62 and L63 certification ECU (smart key ECU assembly) connectors.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L62-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L62-1 (+B) - L62-15 (E) B - W-B Auxiliary battery power supply Power switch off 11 to 14 V
      L62-16 (IG) - L62-15 (E) BE - W-B IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      • If the result is not as specified, there may be a malfunction in the wire harness.
    3. Reconnect the L62 and L63 certification ECU (smart key ECU assembly) connectors.
    4. Measure the voltage according to the value(s) in the table below.
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      L63-16 (RSSI) - L62-15 (E) V - W-B Door control receiver output signal Power switch off, all doors closed and transmitter switch not pressed 11 to 14 V
      Power switch off, all doors closed and transmitter switch pressed Below 2 V
      L63-15 (RDA) - L62-15 (E) Y - W-B Door control receiver input signal Power switch off, all doors closed and transmitter switch not pressed 11 to 14 V pulse generation at regular intervals
      Power switch off, all doors closed and transmitter switch pressed Pulse generation
      L63-5 (RC0) - L62-15 (E) R - W-B Supply battery to door control receiver Power switch off, all doors closed and transmitter switch pressed 4.5 to 5.5 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