Wireless Door Lock Control System Terminals Of Ecu

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Door Lock. Lexus Gs430, Gs300. Uzs190 Grs190

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

  1. CHECK CERTIFICATION ECU ASSEMBLY

Wireless Door Lock Control System -- Terminals Of Ecu



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

Lexus Gs430, Gs300. Uzs190 Grs190.Door Lock.Power Door Lock Control System.Wireless Door Lock Control System Terminals Of Ecu

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

  2. Disconnect the L68 and V1 ECU connectors.

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BECU (DK-5) - GND2 (DD-7)
    		G-R - W-B
    		BECU power supply
    		Always
    		10 to 14 V
    ACC (DM-1) - GND2 (DD-7)
    		B - W-B
    		ACC power supply
    		Always
    		10 to 14 V
    IG (DM-1) - GND2 (DD-7)
    		B - W-B
    		IG power supply
    		Always
    		10 to 14 V
    DCTY (V1-14) - Body ground
    		R - Body ground
    		Driver side door courtesy light switch input
    		Driver side door open
    		Below 1 Ω
    DCTY (V1-14) - Body ground
    		R - Body ground
    		Driver side door courtesy light switch input
    		Driver side door closed
    		10 kΩor higher
    PCTY (L68-23) - Body ground
    		R - Body ground
    		Passenger side door courtesy light switch input
    		Passenger side door open
    		Below 1 Ω
    PCTY (L68-23) - Body ground
    		R - Body ground
    		Passenger side door courtesy light switch input
    		Passenger side door closed
    		10 kΩor higher
    RCTY (V1-16) - Body ground
    		L - Body ground
    		Rear RH side door courtesy light switch input
    		Rear RH side door open
    		Below 1 Ω
    RCTY (V1-16) - Body ground
    		L - Body ground
    		Rear RH side door courtesy light switch input
    		Rear RH side door closed
    		10 kΩor higher
    LCTY (DA-11) - Body ground
    		G - Body ground
    		Rear LH side door courtesy light switch input
    		Rear LH side door open
    		Below 1 Ω
    LCTY (DA-11) - Body ground
    		G - Body ground
    		Rear LH side door courtesy light switch input
    		Rear LH side door closed
    		10 kΩor higher
    GND2 (DD-7) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    GND2 (DA-5) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  4. Reconnect the DA, DD, DK and DM junction connectors.

  5. Reconnect the L68 and V1 ECU connectors.

  6. Measure the voltage of the wire harness side connectors.


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
HAZ (L67-2) - Body ground
O - Body ground
Hazard warning light drive
Answer-back ON
Pulse generation
HAZ (L67-2) - Body ground
O - Body ground
Hazard warning light drive
Answer-back OFF
10 to 14 V
BZR (A41-2) - Body ground
G - Body ground
Wireless warning buzzer drive
Answer-back ON
Pulse generation
BZR (A41-2) - Body ground
G - Body ground
Wireless warning buzzer drive
Answer-back OFF
10 to 14 V
  1. If the result is not as specified, the junction block (ECU) may have a malfunction.

CHECK CERTIFICATION ECU ASSEMBLY

Lexus Gs430, Gs300. Uzs190 Grs190.Door Lock.Power Door Lock Control System.Wireless Door Lock Control System Terminals Of Ecu

  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) - E (V28-17)
    		G - W-B
    		Battery power supply
    		Always
    		10 to 14 V
    IG (V28-18) - E (V28-17)
    		B - W-B
    		IG power supply
    		Engine switch on (IG)
    		10 to 14 V
    IG (V28-18) - E (V28-17)
    		B - W-B
    		IG power supply
    		Engine switch off
    		Below 1 V
    E (V28-17) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    1. If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the V28 ECU connector.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    RSS1 (V28-39) - E (V28-17)
    		O - W-B
    		Door control receiver output signal
    		Engine switch off, all doors closed and transmitter switch not pressed
    		10 to 14 V
    RSS1 (V28-39) - E (V28-17)
    		O - W-B
    		Door control receiver output signal
    		Engine switch off, all doors closed and transmitter switch pressed
    		Below 1 V
    RDA (V28-38) - E (V28-17)
    		LG - W-B
    		Door control receiver output signal
    		Engine switch off, all doors closed and transmitter switch not pressed
    		10 to 14 V
    RDA (V28-38) - E (V28-17)
    		LG - W-B
    		Door control receiver output signal
    		Engine switch off, all doors closed and transmitter switch pressed
    		Pulse generation
    1. If the result is not as specified, the ECU may have a malfunction.