POWER DOOR LOCK CONTROL SYSTEM > TERMINALS OF ECU



CHECK INSTRUMENT PANEL JUNCTION BLOCK (INTEGRATION RELAY)

B088964E03

  1. Disconnect the 2A, 2D, 2H and 2L junction block connectors.

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    BECU (2L-12) - Body ground
    		L - Body ground
    		+B (BECU) power supply
    		Always
    		10 to 14 V
    ALTB (2H-4) - Body ground
    		LG - Body ground
    		+B (power system, generator system) power supply
    		Always
    		10 to 14 V
    GND (2D-9, 18) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    L1 (2A-4) - Body ground
    		L - Body ground
    		Door control switch lock input
    		Door control switch OFF
    		10 kΩ or higher
    L1 (2A-4) - Body ground
    		L - Body ground
    		Door control switch lock input
    		Door control switch LOCK
    		Below 1 Ω
    UL1 (2D-4) - Body ground
    		L-W - Body ground
    		Door control switch unlock input
    		Door control switch OFF
    		10 kΩ or higher
    UL1 (2D-4) - Body ground
    		L-W - Body ground
    		Door control switch unlock input
    		Door control switch UNLOCK
    		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, 2H and 2L junction block connectors.

  4. Measure the voltage of the 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 door and rear LH door*1 or rear RH door*2)
Door control switch or driver door key cylinder OFF
Below 1 V
ACT+ (2R-28) - Body ground
L - Body ground
Door lock motor LOCK drive output (driver door and rear LH door*1 or rear RH door*2)
Door control switch or driver door key cylinder LOCK
10 to 14 V
ACT+ (2K-11) - Body ground
L - Body ground
Door lock motor LOCK drive output (passenger door and rear RH door*1 or rear LH door*2)
Door control switch or driver door key cylinder OFF
Below 1 V
ACT+ (2K-11) - Body ground
L - Body ground
Door lock motor LOCK drive output (passenger door and rear RH door*1 or rear LH door*2)
Door control switch or driver door key cylinder LOCK
10 to 14 V
ACT- (2R-27) - Body ground
L-Y - Body ground
Door lock motor UNLOCK drive output (driver door and rear LH door*1 or rear RH door*2)
Door control switch or driver door key cylinder OFF
Below 1 V
ACT- (2R-27) - Body ground
L-Y - Body ground
Door lock motor UNLOCK drive output (driver door and rear LH door*1 or rear RH door*2)
Door control switch or driver door key cylinder UNLOCK
10 to 14 V
ACT- (2K-10) - Body ground
L-Y - Body ground
Door lock motor UNLOCK drive output (passenger door and rear RH door*1 or rear LH door*2)
Door control switch or driver door key cylinder OFF
Below 1 V
ACT- (2K-10) - Body ground
L-Y - Body ground
Door lock motor UNLOCK drive output (passenger door and rear RH door*1 or rear LH door*2)
Door control switch or driver door key cylinder UNLOCK
10 to 14 V
DCTY (2O-27) - Body ground
R-B - Body ground
Driver side courtesy switch input
Driver side door closed
Below 1 V
DCTY (2O-27) - Body ground
R-B - Body ground
Driver side courtesy switch input
Driver side door open
10 to 14 V

HINT:
*1: LHD (Double cab)
*2: RHD (Double cab)

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