Terminals Of Ecu

CHECK POWER WINDOW REGULATOR MASTER SWITCH (DRIVER SIDE)

Fig 1: Checking Power Window Regulator Master Switch (Driver's Side)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the P9 switch connector.

Measure the voltage and resistance of the wire harness side connector.

Standard:

POWER WINDOW REGULATOR MASTER SWITCH (DRIVER SIDE) TERMINAL VOLTAGE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
GND (P9-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
B (P9-10) - GND (P9-2)	B - W-B	+B (B) power supply	Always	10 to 14 V
IG (P9-20) - GND (P9-2)	R - W-B	Ignition power supply	Ignition switch OFF -> ON	0 V -> 10 to 14 V

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the P9 switch connector.
Reset the power window motor (See INITIALIZATION ).
Measure the voltage of the connector.
Standard:

Fig 2: Measuring Voltage Of Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, the master switch may have a malfunction.

CHECK POWER WINDOW REGULATOR SWITCH (PASSENGER SIDE)

Fig 3: Checking Power Window Regulator Switch (Passenger's Side)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the P12 switch connector.

Measure the voltage and resistance of the wire harness side connector.

Standard:

POWER WINDOW REGULATOR SWITCH (PASSENGER SIDE) TERMINAL VOLTAGE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
GND (P12-7) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
B (P12-12) - GND (P12-7)	P - W-B	+B (B) power supply	Always	10 to 14 V

If the result is not as specified, there may be a malfunction on the wire harness side.

Reconnect the P12 switch connector.
Reset the power window motor (See INITIALIZATION ).
Measure the voltage of the connector.
Standard:

Fig 4: Measuring Voltage Of Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, the regulator switch may have a malfunction.

HINT:

*: An operation permission signal is output from terminal PCT of the master switch to the power window regulator switch. If the value is not as specified, there may be a malfunction on the wire harness side. An operation permission signal is also output through the MPX line to the power window regulator switch. Even if both signals are not output, the power windows will function normally.