WIRELESS DOOR LOCK CONTROL SYSTEM > TERMINALS OF ECU



CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY)

B087931E01

  1. Disconnect the 2A, 2D, 2L and 2O 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
    GND (2D-9) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    BECU (2L-12) - GND (2D-9)
    		L - W-B
    		+B (ECU - B) power source
    		Always
    		10 to 14 V
    RDA (2D-2) - Body ground
    		Y-R - Body ground
    		Door control receiver input
    		Transmitter switch ON → OFF (No key in ignition key cylinder, all doors closed)
    		Below 1 V →
    6 to 7 V →
    Below 1 V
    PRG (2D-2) - Body ground
    		Y-R - Body ground
    		Door control receiver output
    		Transmitter switch ON → OFF (No key in ignition key cylinder, all doors closed)
    		6 to 7 V →
    Below 1 V →
    6 to 7 V
    L1 (2A-4) - Body ground
    		L - Body ground
    		Door control switch (master switch) lock input
    		Door control switch (master switch) LOCK
    		10 kΩ or higher
    Door control switch (master switch) OFF
    		Below 1 Ω
    UL1 (2D-4) - Body ground
    		L-W - Body ground
    		Door control switch (master switch) unlock input
    		Door control switch (master switch) UNLOCK
    		10 kΩ or higher
    Door control switch (master switch) OFF
    		Below 1 Ω
    DCTY (2O-27) - Body ground
    		R-B - Body ground
    		Driver side door courtesy switch
    		Driver side door closed
    		10 kΩ or higher
    Driver side door open
    		Below 1 Ω
    PCTY (2O-15) - Body ground
    		R-L - Body ground
    		All door courtesy switches except driver side door
    		All doors are closed except driver side door
    		10 kΩ or higher
    One or more doors open except driver side door
    		Below 1 Ω

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

  3. Reconnect the 2A, 2D, 2L and 2O junction block connectors.

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    ACT+ (2R-28) - Body ground
    		L - Body ground
    		Door lock motor LOCK drive output (driver side door)
    		Door control switch (master switch) or driver side door key cylinder OFF
    		Below 1 V
    Door control switch (master switch) or driver side door key cylinder LOCK
    		10 to 14 V
    ACT- (2R-27) - Body ground
    		L-Y - Body ground
    		Door lock motor UNLOCK drive output (driver side door)
    		Door control switch (master switch) or driver side door key cylinder OFF
    		Below 1 V
    Door control switch (master switch) or driver side door key cylinder UNLOCK
    		10 to 14 V
    2O-25 - Body ground
    		G-O - Body ground
    		Hazard warning lights output
    		Hazard warning lights OFF
    		Below 1 V
    Hazard warning lights ON
    		Pulse generation

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