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(a) Disconnect the DD and DB ECU connectors. (b) Measure the resistance and voltage according to the value(s) in the table below. TERMINAL NO. (SYMBOLS) WIRING COLOR TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION DD-21 (GND1) - Body ground B - Body ground Ground Always Below 1 Ω DB-13 (BECU) - DD-21 (GND1) GR - B BECU power supply Always 11 to 14 V If the result is not as specified, there may be a malfunction in the wire harness side. (c) Reconnect the DD and DB ECU connectors. (d) Measure the voltage and resistance according to the value(s) in the table below. TERMINAL NO. (SYMBOLS) WIRING COLOR TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION J1-5 (KSW) - DD-21 (GND1) B - B Key unlock warning switch signal Key inserted in the ignition key cylinder Below 1 Ω No key in the ignition key cylinder 10 kΩ or higher J4-24 (DCTY) - Body ground GR - Body ground Front door courtesy light switch LH signal Front door LH open Below 1 V Front door LH closed Pulse generation J3-21 (PCTY) - Body ground W - Body ground Front door courtesy light switch RH signal Front door RH open Below 1 V Front door RH closed Pulse generation DC-2 (LCTY) - Body ground*1, *2 B - Body ground Rear door courtesy light switch LH signal Rear door LH open Below 1 V Rear door LH closed Pulse generation J3-25 (RRCY) - Body ground*1, *2 L - Body ground Rear door courtesy light switch RH signal Rear door RH open Below 1 V Rear door RH closed Pulse generation DD-53 (L2) - Body ground G - Body ground Front door lock key switch LH input Front door key cylinder LH to LOCK Pulse generation Ignition switch OFF, all doors closed and front door key cylinder LH to neutral position Below 1 V J4-10 (UL3) - Body ground B - Body ground Front door lock key switch LH input Front door key cylinder LH to UNLOCK Pulse generation Ignition switch OFF, all doors closed and front door key cylinder LH to neutral position Below 1 V J4-5 (ACTD) - Body ground P - Body ground Front door lock motor LH unlock activation output Master switch (door control switch) or front door key cylinder LH to LOCK Below 1 V Master switch (door control switch) or front door key cylinder LH to UNLOCK Pulse generation DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: TERM... |