ENTRY AND START SYSTEM (for Entry Function) TERMINALS OF ECU


  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Disconnect the L56 certification ECU (smart key ECU assembly) connector.

      A0041ZCE83

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L56-1 (+B) - Body ground B - Body ground +B power supply Power switch off 11 to 14 V
      L56-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L56-17 (CUTB) - Body ground Y - Body ground Dark current cut fuse pin input signal Always 11 to 14 V

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

    3. Reconnect the L56 certification ECU (smart key ECU assembly) connector.

    4. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L56-3 (CLG1) - L56-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      		 No pulse generation
      L56-3 (CLG1) - L56-15 (E) G - W-B Door electrical key oscillator (for driver side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • All doors locked by wireless lock function

      		 Pulse generation
      L56-4 (CG1B) - L56-15 (E) R - W-B Door electrical key oscillator (for driver side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      		 No pulse generation
      L56-4 (CG1B) - L56-15 (E) R - W-B Door electrical key oscillator (for driver side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • All doors locked by wireless lock function

      		 Pulse generation
      L56-5 (CLG2) - L56-15 (E)* G - W-B Door electrical key oscillator (for front passenger side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      		 No pulse generation
      L56-5 (CLG2) - L56-15 (E)* G - W-B Door electrical key oscillator (for front passenger side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • All doors locked by wireless lock function

      		 Pulse generation
      L56-6 (CG2B) - L56-15 (E)* R - W-B Door electrical key oscillator (for front passenger side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      		 No pulse generation
      L56-6 (CG2B) - L56-15 (E)* R - W-B Door electrical key oscillator (for front passenger side) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • All doors locked by wireless lock function

      		 Pulse generation
      L56-7 (CLG5) - L56-15 (E) G - W-B Indoor electrical key oscillator (for front floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-7 (CLG5) - L56-15 (E) G - W-B Indoor electrical key oscillator (for front floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-8 (CG5B) - L56-15 (E) R - W-B Indoor electrical key oscillator (for front floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-8 (CG5B) - L56-15 (E) R - W-B Indoor electrical key oscillator (for front floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-16 (IG) - Body ground BE - Body ground IG power supply Power switch off Below 1 V
      L56-16 (IG) - Body ground BE - Body ground IG power supply Power switch on (IG) 11 to 14 V
      L56-18 (TSW1) - L56-15 (E) B - W-B Lock sensor (for driver side) detection signal

      • Power switch off

      • All doors closed

      • Lock sensor (for driver side) not touched

      		 Pulse generation
      L56-18 (TSW1) - L56-15 (E) B - W-B Lock sensor (for driver side) detection signal

      • Power switch off

      • All doors closed

      • Lock sensor (for driver side) touched

      		 Below 2 V
      L56-19 (TSW2) - L56-15 (E)* B - W-B Lock sensor (for front passenger side) detection signal

      • Power switch off

      • All doors closed

      • Lock sensor (for front passenger side) not touched

      		 Pulse generation
      L56-19 (TSW2) - L56-15 (E)* B - W-B Lock sensor (for front passenger side) detection signal

      • Power switch off

      • All doors closed

      • Lock sensor (for front passenger side) touched

      		 Below 2 V
      L56-20 (SEN1) - L56-15 (E) Y - W-B Touch sensor (for driver side) detection signal

      • Power switch off

      • All doors closed

      • Key not in detection area

      • Touch sensor (for driver side) not touched

      		 Pulse generation
      L56-20 (SEN1) - L56-15 (E) Y - W-B Touch sensor (for driver side) detection signal

      • Power switch off

      • All doors closed

      • Key not in detection area

      • Touch sensor (for driver side) touched

      		 Below 2 V
      L56-21 (SEN2) - L56-15 (E)* Y - W-B Touch sensor (for front passenger side) detection signal

      • Power switch off

      • All doors closed

      • Key not in detection area

      • Touch sensor (for front passenger side) not touched

      		 Pulse generation
      L56-21 (SEN2) - L56-15 (E)* Y - W-B Touch sensor (for front passenger side) detection signal

      • Power switch off

      • All doors closed

      • Key not in detection area

      • Touch sensor (for front passenger side) touched

      		 Below 2 V
      L56-22 (TSW5) - L56-15 (E)* GR - W-B Back door opener switch assembly (opener switch) signal Back door opener switch assembly (opener switch) not pushed Pulse generation
      L56-22 (TSW5) - L56-15 (E)* GR - W-B Back door opener switch assembly (opener switch) signal Back door opener switch assembly (opener switch) pushed Below 1 V
      L56-23 (TSW6) - L56-15 (E)* LG - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) not pushed Pulse generation
      L56-23 (TSW6) - L56-15 (E)* LG - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) pushed Below 1 V
      L56-24 (CLG6) - L56-15 (E) GR - W-B Indoor electrical key oscillator (for center floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-24 (CLG6) - L56-15 (E) GR - W-B Indoor electrical key oscillator (for center floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-25 (CG6B) - L56-15 (E) BR - W-B Indoor electrical key oscillator (for center floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-25 (CG6B) - L56-15 (E) BR - W-B Indoor electrical key oscillator (for center floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-26 (CLG7) - L56-15 (E) G - W-B Indoor electrical key oscillator (for rear floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-26 (CLG7) - L56-15 (E) G - W-B Indoor electrical key oscillator (for rear floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-27 (CG7B) - L56-15 (E) R - W-B Indoor electrical key oscillator (for rear floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) not touched

      		 No pulse generation
      L56-27 (CG7B) - L56-15 (E) R - W-B Indoor electrical key oscillator (for rear floor) sensor signal

      • Power switch off

      • All doors closed

      • Key not in cabin

      • Door outside handle assembly (lock sensor) touched

      		 Pulse generation
      L56-32 (POS1) - L56-15 (E) L - W-B Lock or unlock sensor (for driver side) output signal Power switch off 9 to 14 V
      L56-32 (POS1) - L56-15 (E) L - W-B Lock or unlock sensor (for driver side) output signal Power switch on (IG) Below 2 V
      L56-33 (POS2) - L56-15 (E)* L - W-B Lock or unlock sensor (for front passenger side) output signal Power switch off 9 to 14 V
      L56-33 (POS2) - L56-15 (E)* L - W-B Lock or unlock sensor (for front passenger side) output signal Power switch on (IG) Below 2 V
      L58-5 (RC0) - L56-15 (E) R - W-B Door control receiver power source

      • Power switch off

      • Lock or unlock switch on key not pushed

      		 Below 1 V
      L58-5 (RC0) - L56-15 (E) R - W-B Door control receiver power source

      • Power switch off

      • Lock or unlock switch on key pushed

      		 4.5 to 5.5 V
      L58-15 (RDA) - L56-15 (E) Y - W-B Door control receiver data input signal

      • Power switch off

      • All doors locked

      • Lock or unlock switch on key pushed

      		 Pulse between 11 to 14 V occurs regularly
      L58-16 (RSSI) - L56-15 (E) V - W-B Door control receiver electric wave existence signal

      • Power switch off

      • All doors locked

      • Lock or unlock switch on key not pushed

      		 11 to 14 V
      L58-16 (RSSI) - L56-15 (E) V - W-B Door control receiver electric wave existence signal

      • Power switch off

      • All doors locked

      • Lock or unlock switch on key pushed

      		 Below 2 V
      L58-19 (CLG8) - L56-15 (E)* G - W-B Outside electrical key oscillator (for rear side) sensor signal

      • Power switch off

      • All doors closed

      • Back door opener switch assembly off

      		 No pulse generation
      L58-19 (CLG8) - L56-15 (E)* G - W-B Outside electrical key oscillator (for rear side) sensor signal

      • Power switch off

      • All doors closed

      • Back door opener switch assembly on

      		 Pulse generation
      L58-20 (CG8B) - L56-15 (E)* R - W-B Outside electrical key oscillator (for rear side) sensor signal

      • Power switch off

      • All doors closed

      • Back door opener switch assembly off

      		 No pulse generation
      L58-20 (CG8B) - L56-15 (E)* R - W-B Outside electrical key oscillator (for rear side) sensor signal

      • Power switch off

      • All doors closed

      • Back door opener switch assembly on

      		 Pulse generation

      • *: w/ Entry System Back Door Open Function

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

  2. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Disconnect the 2B and 2C junction block connectors.

      A004337E16

    2. Disconnect the A main body ECU connector.

    3. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-6 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2C-18 (BECU) - Body ground Y - Body ground BECU power supply Power switch off 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      A-31 (ALTB) - Body ground - ALTB power supply Power switch off 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V

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

    4. Reconnect the 2B and 2C junction block connectors.

    5. Reconnect the A main body ECU connector.

    6. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch off Below 1 V
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch unlocked 11 to 14 V
      2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Driver side door control switch off Below 1 V
      2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Driver side door control switch locked 11 to 14 V

      2D-36 (FRCY) - Body ground*1

      2D-35 (FLCY) - Body ground*2

      		 BR - Body ground Front passenger side door courtesy switch input Front passenger side door open Below 1 V

      2D-36 (FRCY) - Body ground*1

      2D-35 (FLCY) - Body ground*2

      		 BR - Body ground Front passenger side door courtesy switch input Front passenger side door closed 11 to 14 V

      2D-35 (FLCY) - Body ground*1

      2D-36 (FRCY) - Body ground*2

      		 V - Body ground Driver side door courtesy switch input Driver side door open Below 1 V

      2D-35 (FLCY) - Body ground*1

      2D-36 (FRCY) - Body ground*2

      		 V - Body ground Driver side door courtesy switch input Driver side door closed 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
      L7-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door open Below 1 V
      L7-6 (LRCY) - Body ground G - Body ground Rear door courtesy light switch input Rear door closed 11 to 14 V
      L7-7 (LSFL) - Body ground GR - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V
      L7-7 (LSFL) - Body ground GR - Body ground Front door LH lock position switch input Power switch off, all doors closed and front door LH locked 11 to 14 V
      L7-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
      L7-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V
      L7-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Front door RH unlocked Below 1 V
      L7-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Power switch off, all doors closed and front door RH locked 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
      L7-12 (UL2) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
      L7-12 (UL2) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V

      • *1: for LHD

      • *2: for RHD

      If the result is not as specified, the main body ECU (multiplex network body ECU) may have a malfunction.

  3. COMBINATION METER ASSEMBLY


    1. Disconnect the L23 combination meter assembly connector.

      A0040OAE04

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Tech Tips

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L23-18 (B) - Body ground R - Body ground B power supply Power switch off 11 to 14 V
      L23-30 (ES) - Body ground BR - Body ground Ground (Signal ground) Always Below 1 Ω

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

    3. Reconnect the L23 combination meter assembly connector.

    4. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      L23-19 (IG+) - Body ground L - Body ground Power switch signal Power switch off Below 1 V
      L23-19 (IG+) - Body ground L - Body ground Power switch signal Power switch on (IG) 11 to 14 V

      If the result is not as specified, the combination meter assembly may have a malfunction.