ENTRY AND START SYSTEM > TERMINALS OF ECU

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CHECK CERTIFICATION ECU

B106648E13

  1. Disconnect the V28 ECU connector.

  2. Measure the voltage and resistance of the wire harness side connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    +B1 (V28-1) - Body ground
    		R - Body ground
    		+B power supply
    		Always
    		10 to 14 V
    IG (V28-18) - Body ground
    		B - Body ground
    		Ignition power supply
    		Engine switch off
    		Below 1 V
    IG (V28-18) - Body ground
    		B - Body ground
    		Ignition power supply
    		Engine switch on (IG)
    		10 to 14 V
    E (V28-17) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the V28 ECU connector.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    CLG1 (V28-33) - CG1B (V28-34)
    		W - R
    		Door electrical key oscillator (front LH) sensor signal
    		All doors closed, all doors locked and engine switch off
    		Alternating between 5 V and below 1 V
    CLG1 (V28-33) - CG1B (V28-34)
    		W - R
    		Door electrical key oscillator (front LH) sensor signal
    		Door unlocked or door open
    		Below 1 V
    SEN1 (V28-22) - E (V28-17)
    		V - W-B
    		Touch sensor detection signal
    		Outside door handle touched
    		10 to 14 V
    SEN1 (V28-22) - E (V28-17)
    		V - W-B
    		Touch sensor detection signal
    		Outside door handle not touched
    		Below 1 V
    SEL1 (V28-5) - E (V28-17)
    		B - W-B
    		Touch sensor activation control signal
    		Key at least 3 m (9.8 ft.) away from door
    		10 to 14 V
    SEL1 (V28-5) - E (V28-17)
    		B - W-B
    		Touch sensor activation control signal
    		Close to door
    		Below 1 V
    CLG2 (V28-35) - CG2B (V28-36)
    		B - W*1
    W - R*2
    		Door electrical key oscillator (front RH) sensor signal
    		All doors closed, all doors locked and engine switch off
    		Alternating between 5 V and below 1 V
    CLG2 (V28-35) - CG2B (V28-36)
    		B - W*1
    W - R*2
    		Door electrical key oscillator (front RH) sensor signal
    		Door unlocked or door open
    		Below 1 V
    SEN2 (V28-23) - E (V28-17)
    		R - W-B*1
    V - W-B*2
    		Touch sensor detection signal
    		Outside door handle touched
    		10 to 14 V
    SEN2 (V28-23) - E (V28-17)
    		R - W-B*1
    V - W-B*2
    		Touch sensor detection signal
    		Outside door handle not touched
    		Below 1 V
    SEL2 (V28-6) - E (V28-17)
    		G - W-B*1
    B - W-B*2
    		Touch sensor activation control signal
    		Key at least 3 m (9.8 ft.) away from door
    		10 to 14 V
    SEL2 (V28-6) - E (V28-17)
    		G - W-B*1
    B - W-B*2
    		Touch sensor activation control signal
    		Close to door
    		Below 1 V
    CLG3 (V33-8) - CG3B (V28-9)
    		R - W*1
    B - Y*2
    		Door electrical key oscillator (rear LH) sensor signal
    		All doors closed, all doors locked and engine switch off
    		Alternating between 5 V and below 1 V
    CLG3 (V33-8) - CG3B (V28-9)
    		R - W*1
    B - Y*2
    		Door electrical key oscillator (rear LH) sensor signal
    		Door unlocked or door open
    		Below 1 V
    SEN3 (V33-28) - E (V28-17)
    		BR - W-B*1
    SB - W-B*2
    		Touch sensor detection signal
    		Outside door handle touched
    		10 to 14 V
    SEN3 (V33-28) - E (V28-17)
    		BR - W-B*1
    SB - W-B*2
    		Touch sensor detection signal
    		Outside door handle not touched
    		Below 1 V
    SEL3 (V33-1) - E (V28-17)
    		O - W-B*1
    LG - W-B*2
    		Touch sensor activation control signal
    		Key at least 3 m (9.8 ft.) away from door
    		10 to 14 V
    SEL3 (V33-1) - E (V28-17)
    		O - W-B*1
    LG - W-B*2
    		Touch sensor activation control signal
    		Close to door
    		Below 1 V
    CLG4 (V33-10) - CG4B (V33-11)
    		B - Y*1
    R - W*2
    		Door electrical key oscillator (rear RH) sensor signal
    		All doors closed, all doors locked and engine switch off
    		Alternating between 5 V and below 1 V
    CLG4 (V33-10) - CG4B (V33-11)
    		B - Y*1
    R - W*2
    		Door electrical key oscillator (rear RH) sensor signal
    		Door unlocked or door open
    		Below 1 V
    SEN4 (V33-27) - E (V28-17)
    		O - W-B*1
    BR - W-B*2
    		Touch sensor detection signal
    		Outside door handle touched
    		10 to 14 V
    SEN4 (V33-27) - E (V28-17)
    		O - W-B*1
    BR - W-B*2
    		Touch sensor detection signal
    		Outside door handle not touched
    		Below 1 V
    SEL4 (V33-2) - E (V28-17)
    		LG - W-B*1
    O - W-B*2
    		Touch sensor activation control signal
    		Key at least 3 m (9.8 ft.) away from door
    		10 to 14 V
    SEL4 (V33-2) - E (V28-17)
    		LG - W-B*1
    O - W-B*2
    		Touch sensor activation control signal
    		Close to door
    		Below 1 V
    CLG5 (V28-11) - CG5B (V28-12)
    		GR - BR
    		Indoor electrical key oscillator (front) sensor signal
    		30 seconds after driver side door opened and closed, engine switch off
    		Alternating between 5 V and below 1 V
    CLG5 (V28-11) - CG5B (V28-12)
    		GR - BR
    		Indoor electrical key oscillator (front) sensor signal
    		Within 30 seconds driver side door opened and closed, engine switch off
    		Below 1 V
    CLG6 (V28-13) - CG6B (V28-14)
    		Y - L
    		Indoor electrical key oscillator (rear) sensor signal
    		30 seconds after driver side door opened and closed, engine switch off
    		Alternating between 5 V and below 1 V
    CLG6 (V28-13) - CG6B (V28-14)
    		Y - L
    		Indoor electrical key oscillator (rear) sensor signal
    		Within 30 seconds driver side door opened and closed, engine switch off
    		Below 1 V
    CLG7 (V28-15) - CG7B (V28-16)
    		P - V
    		Luggage electrical key oscillator (inner) sensor signal
    		Luggage compartment door opening switch OFF
    		Alternating between 5 V and below 1 V
    CLG7 (V28-15) - CG7B (V28-16)
    		P - V
    		Luggage electrical key oscillator (inner) sensor signal
    		Luggage compartment door opening switch ON
    		Below 1 V
    CLG8 (V28-31) - CG8B (V28-32)
    		L - LG
    		Luggage electrical key oscillator (outer) sensor signal
    		Luggage compartment door opening switch OFF
    		Alternating between 5 V and below 1 V
    CLG8 (V28-31) - CG8B (V28-32)
    		L - LG
    		Luggage electrical key oscillator (outer) sensor signal
    		Luggage compartment door opening switch ON
    		Below 1 V
    RCO (V28-29) - E (V28-17)
    		P - W-B
    		Entry door control receiver power source
    		All doors closed, all doors locked and engine switch off
    		0 to 6 V
    RCO (V28-29) - E (V28-17)
    		P - W-B
    		Entry door control receiver power source
    		Door unlocked or door open
    		Below 1 V
    RSSI (V28-39) - E (V28-17)
    		O - W-B
    		Entry door control receiver electric wave existence signal
    		All doors closed, all doors locked and engine switch off
    		0 to 5 V
    RSSI (V28-39) - E (V28-17)
    		O - W-B
    		Entry door control receiver electric wave existence signal
    		Door unlocked or door open
    		Below 1 V
    RDA (V28-38) - E (V28-17)
    		G - W-B
    		Entry door control receiver data input signal
    		All doors closed, all doors locked and engine switch off
    		Below 1 V
    RDA (V28-38) - E (V28-17)
    		G - W-B
    		Entry door control receiver data input signal
    		Door unlocked or door open
    		Approx. 6 to 7 V

    HINT:
    *1: LHD
    *2: RHD

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


CHECK COWL SIDE JUNCTION BLOCK RH ASSEMBLY (MULTIPLEX NETWORK BODY ECU)

B108037E02

  1. Disconnect the DD, DK, DM and DN junction block connectors.

  2. Measure the voltage and resistance of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BECU (DK-5) - Body ground
    		G-R - Body ground
    		+B (ECUB) engine supply
    		Always
    		10 to 14 V
    ALTB (DM-1) - Body ground
    		B - Body ground
    		+B (power system, generator system) power supply
    		Always
    		10 to 14 V
    BATB (DN-1) - Body ground
    		R - Body ground
    		+B (power system, generator system) power supply
    		Always
    		10 to 14 V
    GND2 (DD-7) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the DD, DK, DM and DN junction block connectors.

  4. Measure the resistance of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    TSW (L68-2) - GND2 (DD-7)
    		BR - W-B
    		Luggage compartment door opener cancel switch signal
    		Luggage compartment door opener cancel switch not pushed
    		10 kΩ or higher
    TSW (L68-2) - GND2 (DD-7)
    		BR - W-B
    		Luggage compartment door opener cancel switch signal
    		Luggage compartment door opener cancel switch pushed
    		Below 1 Ω

    1. If the result is not as specified, the junction block may have a malfunction.


CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH

E106667E28

  1. Disconnect the O3 and O4 ECU connectors.

  2. Measure the resistance and voltage of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (O3-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (O3-4) - GND (O3-1)
    		LG - W-B*1
    G - W-B*2
    		CPUB power supply
    		Always
    		10 to 14 V
    BDR (O3-6) - GND (O3-1)
    		L - W-B
    		BDR power supply
    		Always
    		10 to 14 V
    SIG (O3-3) - GND (O3-1)
    		Y - W-B
    		IG power supply
    		Engine switch on (IG)
    		10 to 14 V
    TRG+ (O4-18) - GND (O3-1)
    		L - W-B
    		Lock switch signal
    		Lock switch not pushed
    		10 kΩ or higher
    TRG+ (O4-18) - GND (O3-1)
    		L - W-B
    		Lock switch signal
    		Lock switch pushed
    		Below 1 Ω

    HINT:
    *1: LHD
    *2: RHD

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the O3 and O4 connectors.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    OSCB (O4-7) - OSCE (O4-20)
    		SB - G*1
    R - G*2
    		Power source supply
    		Always
    		10 to 14 V

    HINT:
    *1: LHD
    *2: RHD

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


CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH

E106667E29

  1. Disconnect the N3 and N4 ECU connectors.

  2. Measure the resistance and voltage of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (N4-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (N4-4) - GND (N4-1)
    		LG - W-B*1
    B - W-B*2
    		CPUB power supply
    		Always
    		10 to 14 V
    BDR (N4-6) - GND (N4-1)
    		L - W-B*1
    R - W-B*2
    		BDR power supply
    		Always
    		10 to 14 V
    SIG (N4-3) - GND (N4-1)
    		L - W-B*1
    O - W-B*2
    		IG power supply
    		Engine switch on (IG)
    		10 to 14 V
    TRG+ (N3-18) - GND (N4-1)
    		L - W-B
    		Lock switch signal
    		Lock switch not pushed
    		10 kΩ or higher
    TRG+ (N3-18) - GND (N4-1)
    		L - W-B
    		Lock switch signal
    		Lock switch pushed
    		Below 1 Ω

    HINT:
    *1: LHD
    *2: RHD

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the N3 and N4 connectors.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    OSCB (N3-7) - OSCE (N3-20)
    		R - G
    		Power source supply
    		Always
    		10 to 14 V

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


CHECK MULTIPLEX NETWORK DOOR ECU REAR LH

E106667E30

  1. Disconnect the Q2 and Q3 ECU connectors.

  2. Measure the resistance and voltage of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (Q2-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (Q2-4) - GND (Q2-1)
    		BR - W-B
    		CPUB power supply
    		Always
    		10 to 14 V
    BDR (Q2-6) - GND (Q2-1)
    		L - W-B
    		BDR power supply
    		Always
    		10 to 14 V
    SIG (Q2-3) - GND (Q2-1)
    		G - W-B
    		IG power supply
    		Engine switch on (IG)
    		10 to 14 V
    TRG+ (Q3-18) - GND (Q2-1)
    		L - W-B
    		Lock switch signal
    		Lock switch not pushed
    		10 kΩ or higher
    TRG+ (Q3-18) - GND (Q2-1)
    		L - W-B
    		Lock switch signal
    		Lock switch pushed
    		Below 1 Ω

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the Q2 and Q3 connectors.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    OSCB (Q3-7) - OSCE (Q3-20)
    		R - G
    		Power source supply
    		Always
    		10 to 14 V

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


CHECK MULTIPLEX NETWORK DOOR ECU REAR RH

E106667E31

  1. Disconnect the P2 and P3 ECU connectors.

  2. Measure the resistance and voltage of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (P3-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (P3-4) - GND (P3-1)
    		G - W-B
    		CPUB power supply
    		Always
    		10 to 14 V
    BDR (P3-6) - GND (P3-1)
    		L - W-B
    		BDR power supply
    		Always
    		10 to 14 V
    SIG (P3-3) - GND (P3-1)
    		L - W-B
    		IG power supply
    		Engine switch on (IG)
    		10 to 14 V
    TRG+ (P2-18) - GND (P3-1)
    		L - W-B
    		Lock switch signal
    		Lock switch not pushed
    		10 kΩ or higher
    TRG+ (P2-18) - GND (P3-1)
    		L - W-B
    		Lock switch signal
    		Lock switch pushed
    		Below 1 Ω

    1. If the result is not as specified, the wire harness side may have a malfunction.

  3. Reconnect the P2 and P3 connectors.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    OSCB (P2-7) - OSCE (P2-20)
    		R - G
    		Power source supply
    		Always
    		10 to 14 V

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


CHECK NO. 1 JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK REAR ECU)

B108038E01

  1. Disconnect the LC and LF junction block connectors.

  2. Measure the resistance and voltage of the wire harness side connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    ECUB (LC-15) - Body ground
    		B - Body ground
    		+B power supply
    		Always
    		10 to 14 V
    PGND (LF-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    SG (LC-3) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω

    1. If the result is not as specified, the wire harness side may have a malfunction.