Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - DOOR LOCK
WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Entry and Start System) - TERMINALS OF ECU
| CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
Disconnect the 2A, 2D and E3 ECU connectors.
Measure the resistance and voltage according to value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| 2D-62 (GND2) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| E3-1 (GND3) - Body ground | BR - Body ground | Ground | Always | Below 1 Ω |
| 2A-1 (ACC) - 2D-62 (GND2) | B - W-B | ACC power supply | Engine switch on (ACC) | 11 to 14 V |
| 2A-1 (IG) - 2D-62 (GND2) | B - W-B | IG power supply | Engine switch on (IG) | 11 to 14 V |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the 2A, 2D and E3 ECU connectors.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E1-24 (DCTY) - Body ground | L - Body ground*1 Y - Body ground*2 | Driver side door courtesy light switch input | Driver side door open | Below 1 Ω |
| Driver side door closed | 10 kΩ or higher | |||
| E2-21 (PCTY) - Body ground | Y - Body ground*1 L - Body ground*2 | Passenger side door courtesy light switch input | Passenger side door open | Below 1 Ω |
| Passenger side door closed | 10 kΩ or higher | |||
| 2C-2 (LCTY) - Body ground | W - Body ground | Rear side door LH courtesy light switch input | Rear side door LH open | Below 1 Ω |
| Rear side door LH closed | 10 kΩ or higher | |||
| E2-7 (RCTY) - Body ground | G - Body ground | Rear side door RH courtesy light switch input | Rear side door RH open | Below 1 Ω |
| Rear side door RH closed | 10 kΩ or higher | |||
| E2-25 (BCTY) - Body ground | W - Body ground | Back door courtesy light switch input | Back door open | Below 1 Ω |
| Back door closed | 10 kΩ or higher | |||
| E3-7 (HZSW) - Body ground*4 | BE - Body ground | Turn signal light drive | Hazard warning signal switch on | Pulse generation |
| Hazard warning signal switch off | Below 1 V | |||
| E2-15 (DIM) - 2D-62 (GND2)*3 | L - W-B | Headlight low drive | Headlight dimmer switch low | 11 to 14 V |
| 2B-18 (HRLY) - 2D-62 (GND2)*3 | L - W-B | Headlight (high) drive | Headlight dimmer switch high | 11 to 14 V |
| 2A-1 (TRLY) - 2D-62 (GND2)*3 | B - W-B | Taillight drive | Headlight dimmer switch tail | 11 to 14 V |
*1: for LHD
*2: for RHD
*3: w/ Panic Switch
*4: for GRJ200L-GNANKC, URJ202L-GNTEKC
If the result is not as specified, the ECU may have a malfunction.
Using an oscilloscope, check waveform 1.
| Item | Content |
| Terminal No. (Symbol) | E1-24 (DCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and driver side door courtesy switch off |
Using an oscilloscope, check waveform 2.
| Item | Content |
| Terminal No. (Symbol) | E1-24 (DCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and driver side door courtesy switch off |
Using an oscilloscope, check waveform 3.
| Item | Content |
| Terminal No. (Symbol) | E2-21 (PCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and passenger side door courtesy switch off |
Using an oscilloscope, check waveform 4.
| Item | Content |
| Terminal No. (Symbol) | E2-21 (PCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and passenger side door courtesy switch off |
Using an oscilloscope, check waveform 5.
| Item | Content |
| Terminal No. (Symbol) | 2C-2 (LCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and rear LH side door courtesy switch off |
Using an oscilloscope, check waveform 6.
| Item | Content |
| Terminal No. (Symbol) | 2C-2 (LCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and rear LH side door courtesy switch off |
Using an oscilloscope, check waveform 7.
| Item | Content |
| Terminal No. (Symbol) | E2-7 (RCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and rear RH side door courtesy switch off |
Using an oscilloscope, check waveform 8.
| Item | Content |
| Terminal No. (Symbol) | E2-7 (RCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and rear RH side door courtesy switch off |
Using an oscilloscope, check waveform 9.
| Item | Content |
| Terminal No. (Symbol) | E2-25 (BCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and Back door closed |
Using an oscilloscope, check waveform 10.
| Item | Content |
| Terminal No. (Symbol) | E2-25 (BCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, and Back door closed |
| CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Disconnect the E29 and E30 ECU connectors.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E29-17 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| E29-1 (+B) - E29-17 (E) | B - W-B | Battery power supply | Always | 11 to 14 V |
| E29-18 (IG) - E29-17 (E) | B - W-B | IG power supply | Engine switch on (IG) | 11 to 14 V |
| Engine switch off | Below 1 V |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the E29 and E30 ECU connectors.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E29-39 (RSSI) - E29-17 (E) | L - W-B | Door control receiver electric wave existence signal | Engine switch off, all doors closed and transmitter switch not pressed → pressed | 11 to 14 V → Below 1 V |
| E29-38 (RDA) - E29-17 (E) | LG - W-B | Door control receiver data input signal | Engine switch off, all doors closed and transmitter switch not pressed → pressed | Below 1 V → 11 to 14 V → Below 1 V |
| E29-29 (RCO) - E29-17 (E) | B - W-B | Door control receiver power source | Engine switch off, all doors closed and transmitter switch not pressed → pressed | Below 1 V → 4.6 to 5.4 V → Below 1 V |
| E29-21 (BZR) - Body ground* | LG - Body ground | Wireless door lock buzzer output | Wireless door lock buzzer ON | 11 to 14 V |
| E29-21 (BZR) - Body ground* | LG - Body ground | Wireless door lock buzzer output | Wireless door lock buzzer OFF | Below 1 V |
- HINT:
- *: Except Europe and China
If the result is not as specified, the ECU may have a malfunction.
| CHECK DOOR CONTROL RECEIVER |
Disconnect the L21 receiver connector.
Measure the resistance and voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| L21-1 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| L21-4 (+5) - Body ground | B - Body ground | Battery power supply | Always | 4.6 to 5.4 V |
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK POWER BACK DOOR UNIT (w/ Power Back Door System) |
Disconnect the L52 unit 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 |
| L52-11 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
| L52-10 (ECUB) - Body ground | R - Body ground | Battery power supply | Always | 11 to 14 V |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the L52 unit connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| L52-26 (BZR+) - Body ground | L - Body ground | Power back door warning buzzer signal | Back door warning buzzer is sounding | 11 to 14 V Pulse generation |
| L52-26 (BZR+) - Body ground | L - Body ground | Power back door warning buzzer signal | Back door warning buzzer is stopped | Below 1 V |
If the result is not as specified, the ECU may have a malfunction.