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Terminals Of Ecu

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WIPER CONTROL ECU 

Fig 1: Identifying Terminals Of Wiper Control ECU
G02987799Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
WIPER CONTROL ECU TERMINALS REFERENCE

Symbols (Terminal No.) Wiring Color Condition STD Voltage (V)
S/S --> Body ground (A50-1 --> Body ground) L-B --> Body ground Ignition switch ON and front wiper switch except LO --> LO Below 1 V --> 10- 14 V
+2 --> Body ground (A50-2 --> Body ground) L-R --> Body ground Ignition switch ON and front wiper switch except HI --> HI Below 1 V --> 10- 14 V
S/M --> Body ground (A50-5 --> Body ground) L-W --> Body ground Ignition switch ON and front wiper stop position --> Except stop Below2V --> 10- 14 V
WSHI --> Body ground (A50-6 --> Body ground) L-R --> Body ground Ignition switch ON and front wiper switch except HI --> HI 10- 14 V --> Below 1 V
WSLO --> Body ground (A50-7 --> Body ground) L-B --> Body ground Ignition switch ON and front wiper switch except LO --> LO 10- 14 V --> Below 1 V
WSE --> Body ground (A50-8 --> Body ground) L --> Body ground Always Below 1 V
WIG --> Body ground (A50-10 --> Body ground) L --> Body ground Ignition switch OFF --> ON 0V --> 10- 14 V
MPX1 (A51-1) R-Y Multiplex communication circuit signals -
MPX2 (A51-2) B Multiplex communication circuit signals -
VR --> Body ground (A51-3 --> Body ground) L-W --> Body ground Ignition switch ON and sensitivity volume "FAST" "SLOW" Below 1 V 4.4 V
N --> Body ground (A51-4 --> Body ground) G-R --> Body ground Ignition switch ON and PNP switch except N --> N Below 1 V --> 10- 14 V
WASH --> Body ground (A51-6 --> Body ground) L-Y --> Body ground Ignition switch ON and front washer switch OFF --> ON 10- 14 V --> Below 1 V
WSAU --> Body ground (A51-7 --> Body ground) R-L --> Body ground Ignition switch ON and front wiper switch except AUTO --> AUTO 10- 14 V --> Below 1 V
+B --> Body ground (A51-8 --> Body ground) L-W --> Body ground Always 10 - 14V
EVR --> Body ground (A51-9 --> Body ground) R-W --> Body ground Always Below 1 V
STP --> Body ground (A51 -10 --> Body ground) G-W --> Body ground Ignition switch ON and stop light switch OFF --> ON Below 1 V --> 10- 14 V
GND --> Body ground (A51 -12 --> Body ground) W-B --> Body ground Always Below 1 V

RAIN SENSOR 

Fig 2: Identifying Terminals Of Rain Sensor
G02987800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RAIN SENSOR TERMINALS REFERENCE

Symbols (Terminal No.) Wiring Color Condition STD Voltage (V)
SIG --> Body ground (R40-2 --> Body ground) B-W --> Body ground Ignition switch OFF or ACC --> ON Below 1 V --> 10- 14 V
MPX --> Body ground (R40-3 --> Body ground) R-Y --> Body ground Multiplex communication circuit signals -
ES --> Body ground (R40-4 --> Body ground) W-B --> Body ground Always Below 1 V