Vehicle Interior. Yaris. Ncp93, 131
Theft Deterrent Keyless Entry. Yaris. Ncp93, 131
Theft Deterrent System (For Hatchback) -- Terminals Of Ecu |
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU |

*1 | Instrument Panel Junction Block Assembly | *2 | Main Body ECU |
Remove the main body ECU (YARIS_NCP93 RM000003TOE00CX.html).
Measure the voltage and resistance according to the value(s) in the table below.
If the result is not as specified, there may be a malfunction in the wire harness.Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition MB-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω MB-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V MB-32 (IG) - Body ground None - Body ground Ignition switch power supply Ignition switch ON 11 to 14 V Ignition switch off Below 1 V MB-29 (ACC) - Body ground None - Body ground ACC power supply Ignition switch ACC 11 to 14 V Ignition switch off Below 1 V Install the main body ECU (YARIS_NCP93 RM000003TOC00CX.html).
Measure the voltage and check for pules according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 3D-36 (FLCY) - Body ground L - Body ground Front door LH courtesy switch input Front door LH open Below 1 V Front door LH closed Pulse generation D143-19 (FRCY) - Body ground Y - Body ground Front door RH courtesy switch input Front door RH open Below 1 V Front door RH closed Pulse generation D143-6 (LRCY) - Body ground*1 G - Body ground Rear door courtesy light switch input Rear door LH or RH open Below 1 V Rear door LH and RH closed Pulse generation 3D-35 (BCTY) - Body ground B - Body ground Back door courtesy light switch input Back door open Below 1 V Back door closed Pulse generation D143-7 (LSFL) - Body ground L - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V Front door LH locked Pulse generation D143-18 (LSFR) - Body ground LG - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V Front door RH locked Pulse generation 3D-24 (LSR) - Body ground*1 Y - Body ground Rear door LH unlock detection switch input Rear door LH or RH unlocked Below 1 V Rear door LH and RH locked Pulse generation 3D-25 (LSR) - Body ground*1 V - Body ground Rear door RH unlock detection switch input Rear door RH or LH unlocked Below 1 V Rear door RH and LH locked Pulse generation D144-22 (IND) - Body ground SB - Body ground Theft warning indicator light signal Theft warning indicator light illuminates (It illuminates only for 57 sec. in alarm sounding state.) 3 V to 10 V D144-5 (HCTY) - Body ground GR - Body ground Engine hood courtesy switch input Engine hood open Below 1 V Engine hood closed Pulse generation 3C-19 (HORN) - Body ground LG - Body ground Vehicle horn signal Vehicle horn sounding (Theft deterrent system in alarm sounding state) Pulse generation Vehicle horn not sounding (Theft deterrent system in armed state) 11 to 14 V 3C-20 (SHRN) - Body ground GR - Body ground Security horn signal Security horn sounding (Theft deterrent system in alarm sounding state) Pulse generation Security horn not sounding (Theft deterrent system in armed state) 11 to 14 V - *1: for 5 Door
- *1: for 5 Door