GSIC - Global Service Information Center

# WIRELESS DOOR LOCK CONTROL SYSTEM > TERMINALS OF ECU

CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY)

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.