Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - DOOR / HATCH
TAIL GATE CLOSER SYSTEM - TERMINALS OF ECU
| CHECK NO. 2 MAIN BODY ECU |
Disconnect the L50 and L51 No. 2 main body ECU connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| L50-14 (BECU) - Body ground | R - Body ground | BECU power supply | Always | 11 to 14 V |
| L50-13 (SIG) - Body ground | G - Body ground | SIG power supply | Engine switch on (IG) | 11 to 14 V |
| L50-13 (SIG) - Body ground | G - Body ground | SIG power supply | Engine switch off | Below 1 V |
| L51-5 (B) - Body ground | B - Body ground | Lower tail gate lock motor RH power supply | Always | 11 to 14 V |
| L51-6 (B) - Body ground | W - Body ground | Lower tail gate lock motor LH power supply | Always | 11 to 14 V |
| L50-7 (GND) - Body ground | W-B - Body ground | Body ground | Always | Below 1 Ω |
| L51-7 (GND) - Body ground | W-B - Body ground | Body ground | Always | Below 1 Ω |
| L50-19 (BDSU) - Body ground | V - Body ground | Back door remote control signal circuit | Back door remote control pulled (on) | Below 1 Ω |
| L50-19 (BDSU) - Body ground | V - Body ground | Back door remote control signal circuit | Back door remote control free (off) | 10 kΩ or higher |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the L50 and L51 No. 2 main body ECU connectors.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| L51-3 (DC+) - L51-7 (GND) | R - W-B | Lower tail gate lock motor LH circuit | Lower tail gate lock motor LH operating (close) | 11 to 14 V |
| L51-3 (DC+) - L51-7 (GND) | R - W-B | Lower tail gate lock motor LH circuit | Lower tail gate lock motor LH stopped | Below 1 V |
| L51-8 (DC-) - L51-7 (GND) | B - W-B | Lower tail gate lock motor LH circuit | Lower tail gate lock motor LH operating (open) | 11 to 14 V |
| L51-8 (DC-) - L51-7 (GND) | B - W-B | Lower tail gate lock motor LH circuit | Lower tail gate lock motor LH stopped | Below 1 V |
| L51-2 (DC+) - L51-7 (GND) | G - W-B | Lower tail gate lock motor RH circuit | Lower tail gate lock motor RH operating (close) | 11 to 14 V |
| L51-2 (DC+) - L51-7 (GND) | G - W-B | Lower tail gate lock motor RH circuit | Lower tail gate lock motor RH stopped | Below 1 V |
| L51-1 (DC-) - L51-7 (GND) | W - W-B | Lower tail gate lock motor RH circuit | Lower tail gate lock motor RH operating (open) | 11 to 14 V |
| L51-1 (DC-) - L51-7 (GND) | W - W-B | Lower tail gate lock motor RH circuit | Lower tail gate lock motor RH stopped | Below 1 V |
| L51-9 (HAF) - L51-7 (GND) | GR - W-B | Half-latch switch LH signal circuit | Lower tail gate open | Below 1 V |
| L51-9 (HAF) - L51-7 (GND) | GR - W-B | Half-latch switch LH signal circuit | Lower tail gate closed | Pulse generation (See waveform 1) |
| L50-8 (HAF) - L51-7 (GND) | B - W-B | Half-latch switch RH signal circuit | Lower tail gate open | Below 1 V |
| L50-8 (HAF) - L51-7 (GND) | B - W-B | Half-latch switch RH signal circuit | Lower tail gate closed | Pulse generation (See waveform 1) |
| L51-4 (FUL) - L51-7 (GND) | G - W-B | Lower tail gate courtesy switch LH signal circuit | Lower tail gate open | Below 1 V |
| L51-4 (FUL) - L51-7 (GND) | G - W-B | Lower tail gate courtesy switch LH signal circuit | Lower tail gate closed | Pulse generation (See waveform 1) |
| L50-22 (FUL) - L51-7 (GND) | Y - W-B*1 P - W-B*2 | Lower tail gate courtesy switch RH signal circuit | Lower tail gate open | Below 1 V |
| L50-22 (FUL) - L51-7 (GND) | Y - W-B*1 P - W-B*2 | Lower tail gate courtesy switch RH signal circuit | Lower tail gate closed | Pulse generation (See waveform 1) |
| L51-10 (LMT) - L51-7 (GND) | Y - W-B*1 P - W-B*2 | Close position switch LH signal circuit | Lower tail gate closed | Below 1 V |
| L51-10 (LMT) - L51-7 (GND) | Y - W-B*1 P - W-B*2 | Close position switch LH signal circuit | Lower tail gate open | Pulse generation (See waveform 2) |
| L50-17 (LMT) - L51-7 (GND) | L - W-B | Close position switch RH signal circuit | Lower tail gate closed | Below 1 V |
| L50-17 (LMT) - L51-7 (GND) | L - W-B | Close position switch RH signal circuit | Lower tail gate open | Pulse generation (See waveform 2) |
| L50-15 (POL) - L51-7 (GND) | L - W-B | Pawl switch LH signal circuit | Lower tail gate lock motor LH is operating | Below 1 V |
| L50-15 (POL) - L51-7 (GND) | L - W-B | Pawl switch LH signal circuit | Lower tail gate open | Pulse generation (See waveform 2) |
| L50-16 (POL) - L51-7 (GND) | R - W-B | Pawl switch RH signal circuit | Lower tail gate lock motor RH is operating | Below 1 V |
| L50-16 (POL) - L51-7 (GND) | R - W-B | Pawl switch RH signal circuit | Lower tail gate open | Pulse generation (See waveform 2) |
| L50-19 (BDSU) - L51-7 (GND) | V - W-B | Back door remote control signal circuit | Back door remote control pulled (on) | Below 1 V |
| L50-19 (BDSU) - L51-7 (GND) | V - W-B | Back door remote control signal circuit | Back door remote control free (off) | Pulse generation (See waveform 3) |
*1: Model code: GRJ200L-GNANKC, URJ202L-GNTEKC
*2: Model code except: GRJ200L-GNANKC, URJ202L-GNTEKC
Using an oscilloscope, check waveform 1.
| Item | Content |
| Terminal (Symbol) | L51-9 (HAF) - L51-7 (GND) L50-8 (HAF) - L51-7 (GND) L51-4 (FUL) - L51-7 (GND) L50-22 (FUL) - L51-7 (GND) |
| Tool Setting | 5 V/DIV., 5 ms/DIV |
| Condition | Lower tail gate closed |
Using an oscilloscope, check waveform 2.
| Item | Content |
| Terminal (Symbol) | L51-10 (LMT) - L51-7 (GND) L50-17 (LMT) - L51-7 (GND) L51-15 (POL) - L51-7 (GND) L50-16 (POL) - L51-7 (GND) |
| Tool Setting | 5 V/DIV., 5 ms/DIV |
| Condition | Lower tail gate open |
Using an oscilloscope, check waveform 3.
| Item | Content |
| Terminal (Symbol) | L50-19 (BDSU) - L51-7 (GND) |
| Tool Setting | 5 V/DIV., 5 ms/DIV |
| Condition | Back door remote control free (off) |