Lin Communication System Terminals Of Ecu

Communication System. Camry. Acv40 Gsv40
Multiplex Communication. Camry. Acv40 Gsv40

  1. CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

  1. CHECK POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)

  1. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for FRONT PASSENGER SIDE) (for LHD)

  1. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR RH SIDE) (for LHD)

  1. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR LH SIDE) (for LHD)

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (for LHD)

  1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (w/ Sliding Roof System)

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

  1. CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ Entry and Start System)

  1. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) (w/ Entry and Start System)

Lin Communication System -- Terminals Of Ecu



CHECK MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)


  1. Disconnect the ID and IF instrument panel junction block connectors.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    ID-10 (BECU) - Body ground
    		BE - Body ground*1
    O - Body ground*2
    		Battery power supply
    		Always
    		11 to 14 V
    IF-10 (GND1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    1. *1: w/ Entry and Start System
    2. *2: w/o Entry and Start System
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the ID and IF instrument panel junction block connectors.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    IR-9 (LIN1) - IF-10 (GND1)*1
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    E8-10 (LIN2) - IF-10 (GND1)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    1. *1: w/ Entry and Start System
    If the result is not as specified, the main body ECU (Instrument panel junction block) may have a malfunction.

CHECK POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)


  1. Disconnect the I5*3 or H10*4 motor connector.

    1. *3: for LHD
    2. *4: for RHD

    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

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

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    I5-2 (B) - I5-1 (GND)*3
    H10-2 (B) - H10-1 (E)*4
    		GR - W-B*3
    W - W-B*4
    		Battery power supply
    		Always
    		11 to 14 V
    I5-1 (GND) - Body ground*3
    H10-1 (E) - Body ground*4
    		 W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    1. *3: for LHD
    2. *4: for RHD
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the I5*3 or H10*4 motor connector.

    1. *3: for LHD
    2. *4: for RHD

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    I5-9 (LIN) - I5-1 (GND)*3
    H10-9 (LIN) - H10-1 (E)*4
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    1. *3: for LHD
    2. *4: for RHD
    If the result is not as specified, the motor may be malfunctioning.

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for FRONT PASSENGER SIDE) (for LHD)


  1. Disconnect the H12 power window regulator motor assembly (for front passenger side) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H12-2 (B) - H12-1 (GND)
    		GR - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    H12-1 (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 H12 power window regulator motor assembly (for front passenger side) connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    H12-9 (LIN) - H12-1 (GND)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the power window regulator motor assembly (for front passenger side) may be malfunctioning.

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR RH SIDE) (for LHD)


  1. Disconnect the J7 power window regulator motor assembly (for rear RH side) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    J7-2 (B) - J7-1 (GND)
    		R - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    J7-1 (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 J7 power window regulator motor assembly (for rear RH side) connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    J7-9 (LIN) - J7-1 (GND)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the power window regulator motor assembly (for rear RH side) may be malfunctioning.

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for REAR LH SIDE) (for LHD)


  1. Disconnect the K7 power window regulator motor assembly (for rear LH side) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    K7-2 (B) - K7-1 (GND)
    		R - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    K7-1 (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 K7 power window regulator motor assembly (for rear LH side) connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    K7-9 (LIN) - K7-1 (GND)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the power window regulator motor assembly (for rear LH side) may be malfunctioning.

CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (for LHD)


  1. Disconnect the M2 power window regulator master switch assembly connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    M2-11 (B) - M2-12 (GND)
    		LG - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    M2-12 (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 M2 power window regulator master switch assembly connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    M2-17 (LIN1) - M2-12 (GND)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the power window regulator master switch assembly may be malfunctioning.

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (w/ Sliding Roof System)


  1. Disconnect the Q12 ECU connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

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

    Terminal No. (symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    Q12-1 (B) - Q12-2 (E)
    		B - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    Q12-2 (E) - Body ground
    		 W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the Q12 ECU connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    Q12-4 (MPX1) - Q12-2 (E)
    		P - W-B
    		LIN communication line
    		Ignition switch ON
    		Pulse generation
    If the result is not as specified, the motor may be malfunctioning.

CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)


  1. Disconnect the E74 certification ECU (smart key ECU assembly) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E74-1 (+B) - E74-17 (E)
    		W - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    E74-17 (E) - 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 E74 certification ECU (smart key ECU assembly) connector.

  4. 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
    E74-18 (IG) - E74-17 (E)
    		LG - W-B
    		Engine switch power supply
    		Engine switch on (IG)
    		11 to 14 V
    E74-18 (IG) - E74-17 (E)
    		LG - W-B
    		Engine switch power supply
    		Engine switch off
    		Below 1 V
    E74-10 (LIN) - E74-17 (E)
    		BE - W-B
    		LIN communication line
    		Engine switch on (IG)
    		Pulse generation
    If the result is not as specified, the certification ECU (smart key ECU assembly) may be malfunctioning.

CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ Entry and Start System)


  1. Disconnect the E68 ID code box (immobiliser code ECU) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E68-1 (+B) - E68-8 (GND)
    		W - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    E68-8 (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 E68 ID code box (immobiliser code ECU) connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E68-3 (LIN1) - E68-8 (GND)
    		BE - W-B
    		LIN communication line
    		Engine switch on (IG)
    		Pulse generation
    If the result is not as specified, the ID code box (immobiliser code ECU) may be malfunctioning.

CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) (w/ Entry and Start System)


  1. Disconnect the E69 steering lock ECU (steering lock actuator assembly) connector.


    Camry. Acv40 Gsv40.Multiplex Communication.Lin Communication System.Lin Communication System Terminals Of Ecu

  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.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E69-1 (GND) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    E69-6 (IG2) - E69-1 (GND)
    		B - W-B
    		Engine switch power supply
    		Engine switch on (IG)
    		11 to 14 V
    E69-6 (IG2) - E69-1 (GND)
    		B - W-B
    		Engine switch power supply
    		Engine switch off
    		Below 1 V
    E69-7 (B) - E69-1 (GND)
    		P - W-B
    		Battery power supply
    		Always
    		11 to 14 V
    If the result is not as specified, there may be a malfunction in the wire harness.

  3. Reconnect the E69 steering lock ECU (steering lock actuator assembly) connector.

  4. Check for pulses according to the value(s) in the table below.

    Terminal No. (Symbol)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E69-5 (LIN) - E69-1 (GND)
    		BE - W-B
    		LIN communication line
    		Engine switch on (IG)
    		Pulse generation
    If the result is not as specified, the steering lock ECU (steering lock actuator assembly) may be malfunctioning.