Sliding Roof System -- Terminals Of Ecu |
CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) |

Disconnect the W2 ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
- HINT:
- Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition W2-1 (B) - W2-2 (E) W - W-B Battery power supply Always 11 to 14 V W2-5 (IG) - W2-2 (E) L - W-B IG power supply Ignition switch off Below 1 V W2-5 (IG) - W2-2 (E) L - W-B IG power supply Ignition switch ON 11 to 14 V W2-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω - If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the W2 ECU connector.
Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition W2-7 (OPN) - W2-2 (E) LG - W-B Sliding roof motor open Ignition switch ON, sliding roof closed
Slide open switch off11 to 14 V W2-7 (OPN) - W2-2 (E) LG - W-B Sliding roof motor open Ignition switch ON, sliding roof closed
Slide open switch onBelow 1 V W2-9 (CLS) - W2-2 (E) B - W-B Sliding roof motor close Ignition switch ON, sliding roof open
Slide close switch off11 to 14 V W2-9 (CLS) - W2-2 (E) B - W-B Sliding roof motor close Ignition switch ON, sliding roof open
Slide close switch onBelow 1 V W2-10 (UP) - W2-2 (E) R - W-B Sliding roof motor up Ignition switch ON, sliding roof tilted downward
Tilt up switch off11 to 14 V W2-10 (UP) - W2-2 (E) R - W-B Sliding roof motor up Ignition switch ON, sliding roof tilted downward
Tilt up switch onBelow 1 V W2-8 (DWN) - W2-2 (E) P - W-B Sliding roof motor down Ignition switch ON, sliding roof tilted upward
Tilt down switch off11 to 14 V W2-8 (DWN) - W2-2 (E) P - W-B Sliding roof motor down Ignition switch ON, sliding roof tilted upward
Tilt down switch onBelow 1 V - If the result is not as specified, the sliding roof drive gear sub-assembly may have a malfunction.
- If the result is not as specified, the sliding roof drive gear sub-assembly may have a malfunction.
CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |

*A | for LHD | *B | for RHD |
Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly (LandCruiser RM000003WBO05FX.html).
Measure the voltage and resistance according to the value(s) in the table below.
- HINT:
- Measure the values on the wire harness side with the connector disconnected.
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 - Battery power supply Always 11 to 14 V A-31 (ALTB) - Body ground - Battery power supply Always 11 to 14 V A-32 (IG) - Body ground - Ignition switch power supply Ignition switch ON 11 to 14 V A-32 (IG) - Body ground - Ignition switch power supply Ignition switch off Below 1 V A-29 (ACC) - Body ground - ACC power supply Ignition switch ACC 11 to 14 V A-29 (ACC) - Body ground - ACC power supply Ignition 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 (multiplex network body ECU).
Measure the voltage according to the value(s) in the table below.
for LHD: Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 2I-27 (FLCY) - Body ground R - Body ground Front door LH courtesy switch input Front door LH open Below 1 V 2I-27 (FLCY) - Body ground R - Body ground Front door LH courtesy switch input Front door LH closed 11 to 14 V G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 1 or 2) G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 3 or 4) G64-26 (RDA) - Body ground* P - Body ground Door control receiver input No key in ignition key cylinder, all doors closed and transmitter switch off → on Pulse generation for RHD: Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition 2H-26 (FRCY) - Body ground B - Body ground Front door RH courtesy switch input Front door RH open Below 1 V 2H-26 (FRCY) - Body ground B - Body ground Front door RH courtesy switch input Front door RH closed 11 to 14 V G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 1 or 2) G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 3 or 4) G64-26 (RDA) - Body ground* P - Body ground Door control receiver input No key in ignition key cylinder, all doors closed and transmitter switch off → on Pulse generation - *: w/o Entry and Start System
- *: w/o Entry and Start System
Using an oscilloscope, check waveform 1.
Waveform 1 (Reference) Item Content Terminal No. (Symbol) G64-11 (L2) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Ignition switch off, all doors closed and front door key cylinder in neutral position Using an oscilloscope, check waveform 2.
Waveform 2 (Reference) Item Content Terminal No. (Symbol) G64-11 (L2) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Ignition switch off, all doors closed and front door key cylinder in neutral position Using an oscilloscope, check waveform 3.
Waveform 3 (Reference) Item Content Terminal No. (Symbol) G64-24 (UL3) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Ignition switch off, all doors closed and driver side door key cylinder in neutral position Using an oscilloscope, check waveform 4.
Waveform 4 (Reference) Item Content Terminal No. (Symbol) G64-24 (UL3) - Body ground Tool Setting 5 V/DIV., 20 ms/DIV. Condition Ignition switch off, all doors closed and driver side door key cylinder in neutral position
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CHECK CERTIFICATION ECU (w/ Smart Key System) |

Disconnect the G38 ECU connector.
Measure the voltage and resistance according to the value(s) in the table below.
- HINT:
- Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G38-1 (+B) - G38-15 (E) V - W-B Battery 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 Ignition switch off Below 1 V G38-16 (IG) - G38-15 (E) W - W-B IG power supply Ignition switch ON 11 to 14 V G38-17 (CUTB) - G38-15 (E) L - W-B Battery power supply Always 11 to 14 V - 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 Ignition switch off, all doors closed and transmitter switch not pressed Below 1 V G39-5 (RCO) - G38-15 (E) L - W-B Door control receiver power source Ignition switch off, all doors closed and transmitter switch pressed 4.5 to 5.5 V G39-15 (RDA) - G38-15 (E) G - W-B Door control receiver data input signal Ignition 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 11 to 14 V 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 pressed 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.