POWER DOOR LOCK CONTROL SYSTEM > TERMINALS OF ECU

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CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


  1. Disconnect the P19 switch connector.


    B069873E03

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

    Standard voltage and resistance:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    CPUB (P19-9) - Body ground
    		L-B - Body ground
    		+B (CPUB) power supply
    		Constant
    		10 to 14 V
    BDR (P19-10) - Body ground
    		G - Body ground
    		+B (BDR) power supply
    		Constant
    		10 to 14 V
    SIG (P19-20) - Body ground
    		BR - Body ground
    		+B (SIG) power supply
    		Ignition switch
    OFF → ON
    		Below 1 V → 10 to 14 V
    GND (P19-2) - Body ground
    		W-B - Body ground
    		Ground
    		Constant
    		Below 1 Ω
    KL (P19-4) - Body ground
    		BR - Body ground
    		Driver door key linked door lock input
    		Driver door key cylinder
    OFF → LOCK
    		10 kΩ or higher → Below 1 Ω
    KUL (P19-14) - Body ground
    		GR - Body ground
    		Driver door key linked door unlock input
    		Driver door key cylinder
    OFF → UNLOCK
    		10 kΩ or higher → Below 1 Ω
    LSW (P19-16) - Body ground
    		P - Body ground
    		Driver door lock position switch input
    		Driver door
    UNLOCK → LOCK
    		10 kΩ or higher → Below 1 Ω

    HINT:
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the switch connector and measure the voltage according to the value(s) in the table below.

    Standard voltage:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    KL (P19-4) - Body ground
    		BR - Body ground
    		Driver door key linked door lock input
    		Driver door key cylinder
    OFF → LOCK
    		10 to 14 V → Below 1 V
    KUL (P19-14) - Body ground
    		GR - Body ground
    		Driver door key linked door unlock input
    		Driver door key cylinder
    OFF → UNLOCK
    		10 to 14 V → Below 1 V
    LSW (P19-16) - Body ground
    		P - Body ground
    		Driver door lock position switch input
    		Driver door
    UNLOCK → LOCK
    		Below 1 V →
    10 to 14 V (or pulse generation)

    HINT:
    1. Use an oscilloscope to check the output voltages of terminal LSW.
    2. If the result is not as specified, the switch (door ECU) may have a malfunction.


CHECK INSTRUMENT PANEL J/B ASSEMBLY (BODY ECU)


  1. Disconnect the 1A, 1D, 1F, 1J, 1M, 1O, B5, B6 and B7 connectors.


    B111692E02

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

    Standard voltage and resistance:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BECU (1D-10) - Body ground
    		W - Body ground
    		+B (BECU) power supply
    		Constant
    		10 to 14 V
    ALTB (1D-16) - Body ground
    		W*1, R-Y*2 - Body ground
    		+B (power system, generator system) power supply
    		Constant
    		10 to 14 V
    BATB*3 (1K-9) - Body ground
    		R - Body ground
    		+B (power system, battery system)power supply
    		Constant
    		10 to 14 V
    KSW (B6-21) - Body ground
    		B - Body ground
    		Key unlock warning switch input
    		No key in ignition key cylinder →
    Key inserted
    		10 kΩ or higher →
    Below 1 Ω
    GND1 (1F-10) - Body ground
    		W-B - Body ground
    		Ground
    		Constant
    		Below 1 Ω
    GND2 (1M-9) - Body ground
    		W-B - Body ground
    		Ground
    		Constant
    		Below 1 Ω
    L1 (1J-3)*1, (1K-15)*2 - Body ground
    		V - Body ground
    		Passenger door control switch LOCK input
    		Passenger door control switch
    OFF → LOCK
    		10 kΩ or higher →
    Below 1 Ω
    UL1 (1J-4)*1, (1K-12)*2 - Body ground
    		BR - Body ground
    		Passenger door control switch UNLOCK input
    		Passenger door control switch
    OFF → UNLOCK
    		10 kΩ or higher →
    Below 1 Ω
    DCTY (B5-14) - Body ground
    		L - Body ground
    		Driver door courtesy switch input
    		Driver door
    CLOSED → OPEN
    		10 kΩ or higher →
    Below 1 Ω
    PCTY (B7-23) - Body ground
    		L - Body ground
    		Passenger door courtesy switch input
    		Passenger door
    CLOSED → OPEN
    		10 kΩ or higher →
    Below 1 Ω
    LCTY (1O-7) - Body ground
    		B - Body ground
    		Rear left door courtesy switch input
    		Rear left door
    CLOSED → OPEN
    		10 kΩ or higher →
    Below 1 Ω
    RCTY (B5-16) - Body ground
    		GR - Body ground
    		Rear right door courtesy switch input
    		Rear right door
    CLOSED → OPEN
    		10 kΩ or higher →
    Below 1 Ω
    BCTY (B7-25) - Body ground
    		P - Body ground
    		Back door courtesy switch input
    		Back door
    CLOSED → OPEN
    		10 kΩ or higher →
    Below 1 Ω

    HINT:
    1. *1: LHD Models
    2. *2: RHD Models
    3. *3: w/ Double Locking System
    4. If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the J/B and ECU connectors and measure the voltage according to the value(s) in the table below.

    Standard voltage:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    IG (1F-11) - Body ground
    		Y - Body ground
    		Ignition power supply
    		Ignition switch
    OFF → ON
    		10 to 14 V → Below 1 V
    ACT+ (1K-2) - Body ground
    		L - Body ground
    		Door lock motor LOCK drive output (Front left door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    LOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT+ (1J-1) - Body ground
    		L - Body ground
    		Door lock motor LOCK drive output (Front right door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    LOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT+ (1P-11) - Body ground
    		R-Y - Body ground
    		Door lock motor LOCK drive output (Rear left door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    LOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT+ (1F-5) - Body ground
    		L - Body ground
    		Door lock motor LOCK drive output (Rear right door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    LOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT- (1F-18) - Body ground
    		R - Body ground
    		Door lock motor UNLOCK drive output (Front left and rear right door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    UNLOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT- (1J-2) - Body ground
    		R - Body ground
    		Door lock motor UNLOCK drive output (Front right door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    UNLOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    ACT- (1P-6) - Body ground
    		P - Body ground
    		Door lock motor UNLOCK drive output (Rear left door)
    		Door control switch (Master switch or passenger side switch) or driver side door key cylinder
    OFF →
    UNLOCK →
    OFF
    		Below 1 V →
    10 to 14 V →
    Below 1 V
    LSWP (B7-27) - Body ground
    		Y - Body ground
    		Passenger door lock position switch input
    		Passenger door
    UNLOCK →
    LOCK
    		Below 1 V →
    10 to 14 V (or pulse generation)
    LSWL (1P-5) - Body ground
    		GR - Body ground
    		Rear left door lock position switch input
    		Rear left door
    UNLOCK →
    LOCK
    		Below 1 V →
    10 to 14 V (or pulse generation)
    LSWR (B7-5) - Body ground
    		B - Body ground
    		Rear right door lock position switch input
    		Rear right door
    UNLOCK →
    LOCK
    		Below 1 V →
    10 to 14 V (or pulse generation)

    HINT:
    1. Use an oscilloscope to check the output voltages of terminals LSWP, LSWL and LSWR.
    2. If the result is not as specified, the J/B (body ECU) may have a malfunction.


CHECK POWER BACK DOOR ECU (w/ Power back door system)


  1. Disconnect the P10 and P11 ECU connectors.


    B068464E03

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

    Standard voltage and resistance:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    ECUB (P10-10) - Body ground
    		BR - Body ground
    		ECU (ECUB) power supply
    		Constant
    		10 to 14 V
    B (P11-2) - Body ground
    		Y - Body ground
    		+B (ECUB) power supply
    		Constant
    		10 to 14 V
    GND (P11-8) - Body ground
    		W-B - Body ground
    		Ground
    		Constant
    		Below 1 Ω
    IG (P10-9) - Body ground
    		GR - Body ground
    		Ignition switch input
    		Ignition switch OFF → ON
    		Below 1 V → 10 to 14 V
    CTYE (P10-7) - Body ground
    		P - Body ground
    		Back door courtesy switch input
    		Back door
    CLOSED → OPEN
    		10 kΩ or higher → Below 1 Ω
    CTYO (P10-19) - Body ground
    		BR - Body ground
    		Back door courtesy switch output
    		Back door
    CLOSED → OPEN
    		10 kΩ or higher → Below 1 Ω

    HINT:
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the ECU connectors and measure the voltage according to the value(s) in the table below.

    Standard voltage:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    POS (P10-21) - Body ground
    		LG - Body ground
    		Back door lock position switch input
    		Back door OPEN →
    Closer in operation →
    CLOSED
    		Below 1 V →
    10 to 14 V →
    Below 1 V →
    FUL (P10-18) - Body ground
    		V - Body ground
    		Back door lock full-latch switch input
    		Back door
    CLOSED → OPEN
    		10 to 14 V → Below 1 V
    HAF (P10-8) - Body ground
    		R - Body ground
    		Back door lock half-latch switch input
    		Back door OPEN →
    Closer in operation →
    CLOSED
    		Below 1 V →
    10 to 14 V →
    Below 1 V →
    DC+ (P10-12) - Body ground
    		G - Body ground
    		Back door lock closer motor drive output (Close)
    		Back door OPEN →
    Not completely closed →
    Motor in normal rotation →
    Motor in reverse rotation →
    Operation completed (Back door CLOSED)
    		Below 1 V →
    Below 1 V →
    10 to 14 V →
    Below 1 V →
    Below 1 V →
    DC- (P10-11) - Body ground
    		B - Body ground
    		Back door lock closer motor drive output (Release)
    		Back door OPEN →
    Not completely closed →
    Motor in normal rotation →
    Motor in reverse rotation →
    Operation completed (Back door CLOSED)
    		Below 1 V →
    Below 1 V →
    Below 1 V →
    10 to 14 V →
    Below 1 V →

    HINT:
    If the result is not as specified, the ECU may have a malfunction.


w/ DOUBLE LOCKING SYSTEM
CHECK DOOR OPENING RELAY (DOUBLE LOCK CONTROL RELAY)


  1. Disconnect the D2 switch connector.


    B064460E03

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

    Standard voltage and resistance:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    +B (D2-1) - Body ground
    		R - Body ground
    		+B power suspply
    		Constant
    		10 to 14 V
    CPUB (D2-7) - Body ground
    		SB - Body ground
    		+B (CPUB) power supply
    		Constant
    		10 to 14 V
    GND (D2-14) - Body ground
    		W-B - Body ground
    		Ground
    		Constant
    		Below 1 Ω
    MPX1 (D2-9) - Body ground
    		LG - Body ground
    		BEAN signal input/output
    		Constant
    		10 kΩ or higher

    HINT:
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the D2 relay connector.

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

    Standard voltage:

    Symbols
    (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    DLPD (D2-5) - Body ground
    		GR*1 or P*2- Body ground
    		Front RH double lock position switch input
    		Double lock UNSET → SET
    		5 V or higher → Below 1 V
    DLPP (D2-6) - Body ground
    		P*1 or GR*2- Body ground
    		Front LH double lock position switch input
    		Double lock UNSET → SET
    		5 V or higher → Below 1 V
    DLPR (D2-11) - Body ground
    		W - Body ground
    		Rear RH double lock position switch input
    		Double lock UNSET → SET
    		5 V or higher → Below 1 V
    DLPL (D2-12) - Body ground
    		V - Body ground
    		Rear LH double lock position switch input
    		Double lock UNSET → SET
    		5 V or higher → Below 1 V
    ACTS (D2-3) - Body ground
    		B - Body ground
    		All door double lock motor set on output
    		Double lock UNSET → SET
    		Below 1 V → 10 to 14 V
    ACTR (D2-4) - Body ground
    		L - Body ground
    		All door double lock motor set off output
    		Double lock SET → UNSET
    		Below 1 V → 10 to 14 V

    HINT:
    1. *1: LHD models
    2. *2: RHD models
    3. If the result is not as specified, the relay may have a malfunction.