Wireless Door Lock Control System (W/ Entry And Start System) -- Terminals Of Ecu |
CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |

*A | for LHD | *B | for RHD |
Remove the main body ECU (LandCruiser RM000003WBO05FX.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 A-30 (BECU) - Body ground - Auxiliary battery power supply Always 11 to 14 V A-31 (ALTB) - Body ground - Auxiliary battery power supply Always 11 to 14 V A-32 (IG) - Body ground - Engine switch power supply Engine switch on (IG) 11 to 14 V A-32 (IG) - Body ground - Engine switch power supply Engine switch off Below 1 V A-29 (ACC) - Body ground - ACC power supply Engine switch on (ACC) 11 to 14 V A-29 (ACC) - Body ground - ACC power supply Engine switch off Below 1 V A-11 (GND1) - Body ground - Ground Always Below 1 Ω G63-3 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω Install the main body ECU (LandCruiser RM000003WBM05CX.html).
Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 2I-27 (FLCY) - Body ground*1 R - Body ground Front door LH courtesy switch input Front door LH open Below 1 V 2I-27 (FLCY) - Body ground*1 R - Body ground Front door LH courtesy switch input Front door LH closed 11 to 14 V 2D-31 (FLCY) - Body ground*2 R - Body ground Front door LH courtesy switch input Front door LH open Below 1 V 2D-31 (FLCY) - Body ground*2 R - Body ground Front door LH courtesy switch input Front door LH closed 11 to 14 V 2D-15 (FRCY) - Body ground*1 B - Body ground Front door RH courtesy switch input Front door RH open Below 1 V 2D-15 (FRCY) - Body ground*1 B - Body ground Front door RH courtesy switch input Front door RH closed 11 to 14 V 2H-26 (FRCY) - Body ground*2 B - Body ground Front door RH courtesy switch input Front door RH open Below 1 V 2H-26 (FRCY) - Body ground*2 B - Body ground Front door RH courtesy switch input Front door RH closed 11 to 14 V G65-3 (LCTY) - Body ground*3 V - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V G65-3 (LCTY) - Body ground*3 V - Body ground Rear door LH courtesy light switch input Rear door LH closed 11 to 14 V G64-6 (RCTY) - Body ground*3 R - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V G64-6 (RCTY) - Body ground*3 R - Body ground Rear door RH courtesy light switch input Rear door RH closed 11 to 14 V G64-19 (BCTY) - Body ground G - Body ground Back door courtesy light switch input Back door open Below 1 V G64-19 (BCTY) - Body ground G - Body ground Back door courtesy light switch input Engine switch off, all doors closed and back door closed Pulse generation (see waveform 1 or 2) G64-1 (GCTY) - Body ground*4 V - Body ground Glass hatch courtesy switch input Glass hatch open Below 1 V G64-1 (GCTY) - Body ground*4 V - Body ground Glass hatch courtesy switch input Engine switch off, all doors closed and glass hatch closed Pulse generation (see waveform 3 or 4) G64-7 (LSFL) - Body ground G - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V G64-7 (LSFL) - Body ground G - Body ground Front door LH lock position switch input Engine switch off, all doors closed and front door LH locked Pulse generation (see waveform 5 or 6) G64-18 (LSFR) - Body ground G - Body ground Front door RH lock position switch input Front door RH unlocked Below 1 V G64-18 (LSFR) - Body ground G - Body ground Front door RH lock position switch input Engine switch off, all doors closed and front door RH locked Pulse generation (see waveform 7 or 8) 2I-25 (LSWL) - Body ground*1, *3 B - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V 2I-25 (LSWL) - Body ground*1, *3 B - Body ground Rear door LH lock position switch input Engine switch off, all doors closed and rear door LH locked Pulse generation (see waveform 9 or 10) 2D-16 (LSWL) - Body ground*2, *3 B - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V 2D-16 (LSWL) - Body ground*2, *3 B - Body ground Rear door LH lock position switch input Engine switch off, all doors closed and rear door LH locked Pulse generation (see waveform 11 or 12) G63-2 (LSWR) - Body ground*3 V - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V G63-2 (LSWR) - Body ground*3 V - Body ground Rear door RH lock position switch input Engine switch off, all doors closed and rear door RH locked Pulse generation (see waveform 13 or 14) G65-13 (LSWB) - Body ground SB - Body ground Back door lock position switch input Back door lock unlocked Below 1 V G65-13 (LSWB) - Body ground SB - Body ground Back door lock position switch input Engine switch off, all doors closed and back door locked Pulse generation (see waveform 15 or 16) 2F-13 (BZR) - Body ground GR - Body ground Wireless door lock buzzer signal Wireless door lock buzzer off Below 1 V 2F-13 (BZR) - Body ground GR - Body ground Wireless door lock buzzer signal Wireless door lock buzzer on Pulse generation G64-3 (HAZ) - Body ground W - Body ground Hazard warning signal light signal output Hazard warning signal switch off Below 1 V G64-3 (HAZ) - Body ground W - Body ground Hazard warning signal light signal output Hazard warning signal switch on 11 to 14 V - *1: for LHD
- *2: for RHD
- *3: for 5 Door
- *4: w/ Glass Hatch Opener System
- *1: for LHD
Using an oscilloscope, check waveform 1.
Waveform 1 (Reference) Item Content Terminal No. (Symbol) G64-19 (BCTY) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and back door closed Using an oscilloscope, check waveform 2.
Waveform 2 (Reference) Item Content Terminal No. (Symbol) G64-19 (BCTY) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and back door closed Using an oscilloscope, check waveform 3.
Waveform 3 (Reference) Item Content Terminal No. (Symbol) G64-1 (GCTY) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and glass hatch closed Using an oscilloscope, check waveform 4.
Waveform 4 (Reference) Item Content Terminal No. (Symbol) G64-1 (GCTY) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and glass hatch closed Using an oscilloscope, check waveform 5.
Waveform 5 (Reference) Item Content Terminal No. (Symbol) G64-7 (LSFL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and front door LH locked Using an oscilloscope, check waveform 6.
Waveform 6 (Reference) Item Content Terminal No. (Symbol) G64-7 (LSFL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and front door LH locked Using an oscilloscope, check waveform 7.
Waveform 7 (Reference) Item Content Terminal No. (Symbol) G64-18 (LSFR) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and front door RH locked Using an oscilloscope, check waveform 8.
Waveform 8 (Reference) Item Content Terminal No. (Symbol) G64-18 (LSFR) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and front door RH locked Using an oscilloscope, check waveform 9.
Waveform 9 (Reference) Item Content Terminal No. (Symbol) 2I-25 (LSWL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door LH locked Using an oscilloscope, check waveform 10.
Waveform 10 (Reference) Item Content Terminal No. (Symbol) 2I-25 (LSWL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door LH locked Using an oscilloscope, check waveform 11.
Waveform 11 (Reference) Item Content Terminal No. (Symbol) 2D-16 (LSWL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door LH locked Using an oscilloscope, check waveform 12.
Waveform 12 (Reference) Item Content Terminal No. (Symbol) 2D-16 (LSWL) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door LH locked Using an oscilloscope, check waveform 13.
Waveform 13 (Reference) Item Content Terminal No. (Symbol) G63-2 (LSWR) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door RH locked Using an oscilloscope, check waveform 14.
Waveform 14 (Reference) Item Content Terminal No. (Symbol) G63-2 (LSWR) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and rear door RH locked Using an oscilloscope, check waveform 15.
Waveform 15 (Reference) Item Content Terminal No. (Symbol) G65-13 (LSWB) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and back door locked Using an oscilloscope, check waveform 16.
Waveform 16 (Reference) Item Content Terminal No. (Symbol) G65-13 (LSWB) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Engine switch off, all doors closed and back door locked
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CHECK CERTIFICATION ECU |

Disconnect the G38 ECU connector.
Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G38-1 (+B) - G38-15 (E) V - W-B +B power supply Always 11 to 14 V G38-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω G38-16 (IG) - G38-15 (E) W - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V G38-17 (CUTB) - G38-15 (E) L - W-B +B power supply Always 11 to 14 V - If the result is not as specified, there may be a malfunction in the wire harness.
- If the result is not as specified, there may be a malfunction in the wire harness.
Reconnect the G38 ECU connector.
Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G39-5 (RCO) - G38-15 (E) L - W-B Door control receiver power source Engine switch off, all doors closed and transmitter switch not pressed → pressed Below 1 V → 4.5 to 5.5 V G39-15 (RDA) - G38-15 (E) G - W-B Door control receiver data input signal Engine switch off 11 to 14 V pulse generation at regular intervals G39-16 (RSSI) - G38-15 (E) P - W-B Door control receiver electric wave existence signal All doors locked, all doors closed and transmitter switch not pressed → pressed 11 to 14 V → Below 2 V - If the result is not as specified, the certification ECU may have a malfunction.
- If the result is not as specified, the certification ECU may have a malfunction.