POWER DOOR LOCK CONTROL SYSTEM > TERMINALS OF ECU

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

E187247E11

  1. Disconnect the 2B and 2C instrument panel junction block assembly connector.

  2. Disconnect the MB and H17 main body ECU (multiplex network body ECU) connector.

  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
    2B-6 (GND1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    2C-18 (BECU) - Body ground
    		B - Body ground
    		Auxiliary battery power supply
    		Power switch off
    		11 to 14 V
    H17-3 (GND2) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    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
    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
    If the result is not as specified, there may be a malfunction in the wire harness.

  4. Reconnect the 2B and 2C instrument panel junction block assembly connector.

  5. Reconnect the MB and H17 main body ECU (multiplex network body ECU) connector.

  6. 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
    2A-47 (GSW) - Body ground
    		G - Body ground
    		Airbag sensor signal (collision detection signal)
    		Power switch on (IG) with airbag sensor assembly connector disconnected
    		4.5 to 5.5 V
    2B-1 (ACT-) - Body ground
    		B - Body ground
    		Door lock motor unlock drive output (except driver side)
    		Multiplex network master switch (door control switch) or driver door key cylinder off
    		Below 1 V
    2B-1 (ACT-) - Body ground
    		B - Body ground
    		Door lock motor unlock drive output (except driver side)
    		Multiplex network master switch (door control switch) or driver door key cylinder unlocked
    		11 to 14 V
    2B-8 (ACT+) - Body ground
    		L - Body ground
    		Door lock motor lock drive output (all doors)
    		Multiplex network master switch (door control switch) or driver door key cylinder off
    		Below 1 V
    2B-8 (ACT+) - Body ground
    		L - Body ground
    		Door lock motor lock drive output (all doors)
    		Multiplex network master switch (door control switch) or driver door key cylinder locked
    		11 to 14 V
    2B-5 (ACTD) - Body ground
    		B - Body ground
    		Driver door lock motor unlock drive output
    		Multiplex network master switch (door control switch) or driver door key cylinder off
    		Below 1 V
    2B-5 (ACTD) - Body ground
    		B - Body ground
    		Driver door lock motor unlock drive output
    		Multiplex network master switch (door control switch) or driver door key cylinder unlocked
    		11 to 14 V
    2D-36 (FRCY) - Body ground
    		BR - Body ground
    		Front door courtesy light switch RH input
    		Front passenger door open*1
    Driver door open*2
    		Below 1 V
    2D-36 (FRCY) - Body ground
    		BR - Body ground
    		Front door courtesy light switch RH input
    		Front passenger door closed*1
    Driver door closed*2
    		11 to 14 V
    2D-35 (FLCY) - Body ground
    		BR - Body ground
    		Front door courtesy light switch LH input
    		Driver door open*1
    Front passenger door open*2
    		Below 1 V
    2D-35 (FLCY) - Body ground
    		BR - Body ground
    		Front door courtesy light switch LH input
    		Driver door closed*1
    Front passenger door closed*2
    		11 to 14 V
    H18-3 (LCTY) - Body ground
    		G - Body ground
    		Rear door LH courtesy light switch input
    		Rear door LH open
    		Below 1 V
    H18-3 (LCTY) - Body ground
    		G - Body ground
    		Rear door LH courtesy light switch input
    		Rear door LH closed
    		Pulse generation
    H16-6 (RCTY) - Body ground
    		G - Body ground
    		Rear door RH courtesy light switch input
    		Rear door RH open
    		Below 1 V
    H16-6 (RCTY) - Body ground
    		G - Body ground
    		Rear door RH courtesy light switch input
    		Rear door RH closed
    		Pulse generation
    H16-9 (L1) - Body ground
    		LG - Body ground
    		Front passenger door control switch input
    		Front passenger door control switch locked
    		Below 1 V
    H16-9 (L1) - Body ground
    		LG - Body ground
    		Front passenger door control switch input
    		Front passenger door control switch off
    		Pulse generation
    H16-10 (+B1) - Body ground
    		BR - Body ground
    		Front passenger door control switch input
    		Front passenger door control switch unlocked
    		Below 1 V
    H16-10 (+B1) - Body ground
    		BR - Body ground
    		Front passenger door control switch input
    		Front passenger door control switch off
    		Pulse generation
    H16-11 (L2) - Body ground
    		G - Body ground
    		Driver door key-linked lock input
    		Driver door key cylinder turned to lock
    		Below 1 V
    H16-11 (L2) - Body ground
    		G - Body ground
    		Driver door key-linked lock input
    		Driver door key cylinder off
    		11 to 14 V
    H16-24 (UL3) - Body ground
    		V - Body ground
    		Driver door key-linked unlock input
    		Driver door key cylinder turned to unlock
    		Below 1 V
    H16-24 (UL3) - Body ground
    		V - Body ground
    		Driver door key-linked unlock input
    		Driver door key cylinder off
    		Pulse generation
    H16-7 (LSFL) - Body ground
    		GR - Body ground
    		Driver door unlock detection switch input*1
    Front passenger door unlock detection switch input*2
    		Driver door unlocked*1
    Front passenger door unlocked*2
    		Below 1 V
    H16-7 (LSFL) - Body ground
    		GR - Body ground
    		Driver door unlock detection switch input*1
    Front passenger door unlock detection switch input*2
    		Power switch off, all doors closed and driver door locked*1
    Power switch off, all doors closed and front passenger door locked*2
    		Pulse generation
    H16-18 (LSFR) - Body ground
    		SB - Body ground
    		Front passenger door unlock detection switch input*1
    Driver door unlock detection switch input*2
    		Front passenger door unlocked*1
    Driver door unlocked*2
    		Below 1 V
    H16-18 (LSFR) - Body ground
    		SB - Body ground
    		Front passenger door unlock detection switch input*1
    Driver door unlock detection switch input*2
    		Power switch off, all doors closed and front passenger door locked*1
    Power switch off, all doors closed and driver door locked*2
    		Pulse generation
    H17-2 (LSWR) - Body ground
    		GR - Body ground
    		Rear right door unlock detection switch input
    		Rear right door unlocked
    		Below 1 V
    H17-2 (LSWR) - Body ground
    		GR - Body ground
    		Rear right door unlock detection switch input
    		Power switch off, all doors closed and rear right door locked
    		11 to 14 V
    2D-25 (LSWL) - Body ground
    		GR - Body ground
    		Rear door LH unlock detection switch input
    		Rear door LH unlocked
    		Below 1 V
    2D-25 (LSWL) - Body ground
    		GR - Body ground
    		Rear door LH unlock detection switch input
    		Power switch off, all doors closed and rear door LH locked
    		Pulse generation
    H16-19 (BCTY) - Body ground
    		SB - Body ground
    		Back door courtesy light switch input
    		Back door open
    		Below 1 V
    H16-19 (BCTY) - Body ground
    		SB - Body ground
    		Back door courtesy light switch input
    		Back door closed
    		11 to 14 V
    H16-23 (BDSU) - Body ground*3
    		R - Body ground
    		Back door opener switch pushed
    		Back door opener switch pushed
    		Below 1 V
    H16-23 (BDSU) - Body ground*3
    		R - Body ground
    		Back door opener switch pushed
    		Back door opener switch not pushed
    		11 to 14 V
    *1: for LHD
    *2: for RHD
    *3: w/o Entry System Back Door Open Function
    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.


CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry System Back Door Open Function)

B203498E63

  1. Disconnect the H1 certification ECU (smart key ECU assembly) connector.

  2. Measure the 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
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H1-22 (TSW5) - Body ground
    		LG - Body ground
    		Back door opener switch signal
    		Back door opener switch on
    		Below 1 Ω
    H1-22 (TSW5) - Body ground
    		LG - Body ground
    		Back door opener switch signal
    		Back door opener switch off
    		10 kΩ or higher
    If the result is not as specified, there may be a malfunction in the wire harness.

  3. Reconnect the H1 certification ECU (smart key ECU assembly) connector.

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

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H1-22 (TSW5) - Body ground
    		LG - Body ground
    		Back door opener switch signal
    		Back door opener switch off
    		11 to 14 V (Pulse generation)
    H1-22 (TSW5) - Body ground
    		LG - Body ground
    		Back door opener switch signal
    		Back door opener switch on
    		Below 1 V
    If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.


CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)


  1. Disconnect the H140 double lock door control relay assembly connector.


    B064460E16

  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
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H140-1 (+B) - Body ground
    		B - Body ground
    		Auxiliary battery power supply
    		Power switch off
    		11 to 14 V
    H140-7 (CPUB) - Body ground
    		BR - Body ground
    		Auxiliary battery power supply
    		Power switch off
    		11 to 14 V
    H140-14 (GND) - 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.

  3. Reconnect the H140 double lock door control relay assembly connector.

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

    Tester Connection
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H140-5 (DLPD) - Body ground
    		Y - Body ground
    		Front RH double lock position switch input
    		Double lock unset
    		Pulse generation
    H140-5 (DLPD) - Body ground
    		Y - Body ground
    		Front RH double lock position switch input
    		Double lock set
    		Below 1 V
    H140-6 (DLPP) - Body ground
    		V - Body ground
    		Front LH double lock position switch input
    		Double lock unset
    		Pulse generation
    H140-6 (DLPP) - Body ground
    		V - Body ground
    		Front LH double lock position switch input
    		Double lock set
    		Below 1 V
    H140-11 (DLPR) - Body ground
    		B - Body ground
    		Rear RH double lock position switch input
    		Double lock unset
    		Pulse generation
    H140-11 (DLPR) - Body ground
    		B - Body ground
    		Rear RH double lock position switch input
    		Double lock set
    		Below 1 V
    H140-12 (DLPL) - Body ground
    		L - Body ground
    		Rear LH double lock position switch input
    		Double lock unset
    		Pulse generation
    H140-12 (DLPL) - Body ground
    		L - Body ground
    		Rear LH double lock position switch input
    		Double lock set
    		Below 1 V
    H140-3 (ACTS) - Body ground
    		LG - Body ground
    		All door double lock motor set on output
    		Double lock unset
    		Below 1 V
    H140-3 (ACTS) - Body ground
    		LG - Body ground
    		All door double lock motor set on output
    		Double lock set
    		11 to 14 V
    H140-4 (ACTR) - Body ground
    		GR - Body ground
    		All door double lock motor set off output
    		Double lock set
    		Below 1 V
    H140-4 (ACTR) - Body ground
    		GR - Body ground
    		All door double lock motor set off output
    		Double lock unset
    		11 to 14 V
    If the result is not as specified, the double lock door control relay assembly may have a malfunction.