Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - WIPER / WASHER
WIPER AND WASHER SYSTEM (w/ Rain Sensor) - TERMINALS OF ECU
| CHECK WINDSHIELD WIPER ECU |
Disconnect the E83 and E85 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 |
| E83-5 (IG1I) - E85-10 (E) | G - W-B | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| E85-10 (E) - Body ground | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the E83 and E85 ECU connectors.
Measure the voltage and waveform according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E83-7 (+SM) - Body ground | W - Body ground | Front wiper motor operation signal | Front wiper is operated | 11 to 14 V |
| Front wiper is stopped | Below 1 V | |||
| E83-8 (WIG) - Body ground | B - Body ground | Front wiper motor power source circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| E83-10 (1S) - Body ground | P - Body ground | Front wiper motor power supply circuit | Front wiper switch off | Below 1 V |
| Front wiper switch LO | 11 to 14 V | |||
| E83-9 (2S) - Body ground | R - Body ground | Front wiper motor power supply circuit (HI signal) | Front wiper switch off | Below 1 V |
| Front wiper switch HI | 11 to 14 V | |||
| E85-2 (W) - Body ground | L - Body ground | Front washer motor power source circuit | Front washer switch off | Below 1 V |
| Front washer switch on | 11 to 14 V | |||
| E85-5 (CANL) - Body ground | R - Body ground | CAN communication signal | Engine switch on (IG) | Pulse generation |
| E85-6 (CANH) - Body ground | LG - Body ground | CAN communication signal | Engine switch on (IG) | Pulse generation |
| E85-7 (MPX1) - Body ground | R - Body ground | LIN communication signal | Engine switch on (IG) | Pulse generation |
| CHECK WINDSHIELD WIPER SWITCH |
Disconnect the E16 switch 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 |
| E16-2 (+B) - E16-10 (E)*1 | B - W-B | Power source circuit (from battery) | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| E16-3 (+B) - E16-5 (E)*2 | B - W-B | Power source circuit (from battery) | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| E16-10 (E) - Body ground*1 | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
| E16-5 (E) - Body ground*2 | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
- HINT:
*1: for LH Side
*2: for RH Side
| CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH) |
Disconnect the 2D, E2 and E1 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 |
| E1-6 (AM1) - 2D-62 (GND2) | W - W-B | Power source circuit (from battery) | Always | 11 to 14 V |
| E2-11 (IG2D) - 2D-62 (GND2) | B - W-B | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| 2B-22 (STP) - 2D-62 (GND2) | R - W-B | Stop light switch circuit | Stop light switch off | Below 1 V |
| Stop light switch on | 11 to 14 V | |||
| 2D-62 (GND2) - Body ground | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
Reconnect the 2D, E2 and E1 main body ECU connectors.
Measure the voltage and waveform according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| E2-13 (HDLO) - Body ground | L - Body ground | Headlight low beam operation signal | Engine switch on (IG) Headlight dimmer switch in head | 11 to 14 V |
| Engine switch on (IG) Headlight dimmer switch not in head | Below 1 V | |||
| E3-15 (CANN) - Body ground | R - Body ground | CAN communication signal | Engine switch on (IG) | Pulse generation |
| E3-16 (CANP) - Body ground | GR - Body ground | CAN communication signal | Engine switch on (IG) | Pulse generation |
| CHECK MAP LIGHT |
Disconnect the R7 map light 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 |
| R7-14 (IG) - R7-3 (GND5) | G - W-B | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| R7-3 (GND5) - Body ground | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
| CHECK RAIN SENSOR |
Disconnect the R11 rain sensor 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 |
| R11-4 (SIG) - Body ground | G - Body ground | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| R11-1 (ES) - Body ground | W - Body ground | Ground circuit | Always | Below 1 Ω |
Reconnect the R11 rain sensor connector.
Measure the waveform according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| R11-3 (MPX) - Body ground | R - Body ground | LIN communication signal | Engine switch on (IG) | Pulse generation |
| CHECK HEADLIGHT CLEANER CONTROL RELAY (w/ Headlight Cleaner System) |
- HINT:
- The headlight cleaner control relay uses waterproof connector. Therefore, voltage cannot be checked with the connector connected to the vehicle.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
| 3 (IG) - 4 (E) | - | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| 4 (E) - Body ground | - | Ground circuit | Always | Below 1 Ω |
| 6 (PB) - 4 (E) | - | Headlight cleaner motor operation signal | Headlight cleaner motor is stopped | 11 to 14 V |
| Headlight cleaner motor is operating | Below 1 V | |||
| 2 (H) - 4 (E) | - | Headlight cleaner switch and headlight switch operation signal | Engine switch on (IG) Headlight cleaner switch is off | Below 1 V |
| Engine switch on (IG) Headlight switch is off | Below 1 V | |||
| Engine switch on (IG) Headlight cleaner switch is on and headlight dimmer switch in HEAD | 11 to 14 V | |||
| 5 (FRWA) - 4 (E)* | - | Front washer switch operation signal | Engine switch on (IG) Front washer switch is off | 11 to 14 V |
| Engine switch on (IG) Front washer switch is on | Below 1 V | |||
| 1 (HDLO) - 4 (E)* | - | Headlight low beam operation signal | Engine switch on (IG) Headlight dimmer switch in HEAD | 11 to 14 V |
| Engine switch on (IG) Headlight dimmer switch not in HEAD | Below 1 V |
*: w/ Headlight Auto Leveling
| NO. 2 MULTIPLEX NETWORK BODY ECU (w/ Washer Nozzle Heater System) |
Disconnect the L50 and L51 No. 2 multiplex network 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 | Power source circuit | Always | 11 to 14 V |
| L50-13 (SIG) - Body ground | G - Body ground | IG signal circuit | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| L50-7 (GND) - Body ground | W-B - Body ground | Ground circuit | Always | Below 1 Ω |
Reconnect the L50 and L51 No. 2 multiplex network 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 |
| L50-25 (WHTR) - Body ground | GR - Body ground | Washer nozzle heater signal circuit | Engine switch on (IG), ambient temperature 6°C (42°F) or higher | 11 to 14 V |
| Engine switch on (IG), ambient temperature 5°C (41°F) or less | Below 1 V |