Terminals Of Ecu

Fig 1: Identifying Power Window Regulator Master Switch D18 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the D18 switch connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
   E (D18-2) - Body ground	W-B - Body ground	Ground	Always	Below 1 V
   BDR1 (D18-10) - Body ground	B-W - Body ground	Battery power supply	Always	10 to 14 V
   CPUB (D18-9) - Body ground	L - Body ground	Battery power supply	Always	10 to 14 V
   SIG (D18-20) - Body ground	W - Body ground	Ignition power supply	Ignition switch on (IG)	10 to 14 V
   U (D18-1) - E (D18-2)	L - W-B	Driver door power window motor UP output	Ignition switch on (IG), drive power window switch OFF	Below 1 V
   U (D18-1) - E (D18-2)	L - W-B	Driver door power window motor UP output	Ignition switch on (IG), drive power window switch UP (manual operation)	10 to 14 V
   U (D18-1) - E (D18-2)	L - W-B	Driver door power window motor UP output	Ignition switch on (IG), drive power window fully open	Below 1 V
   U (D18-1) - E (D18-2)	L - W-B	Driver door power window motor UP output	Ignition switch on (IG), drive power window switch UP (AUTO operation)	10 to 14 V
   U (D18-1) - E (D18-2)	L - W-B	Driver door power window motor UP output	Ignition switch on (IG), drive power window fully closed	Below 1 V
   D (D18-11) - E (D18-2)	L-B - W-B	Driver door power window motor DOWN output	Ignition switch on (IG), drive power window switch DOWN (manual operation)	10 to 14 V
   D (D18-11) - E (D18-2)	L-B - W-B	Driver door power window motor DOWN output	Ignition switch on (IG), drive power window fully closed	Below 1 V
   D (D18-11) - E (D18-2)	L-B - W-B	Driver door power window motor DOWN output	Ignition switch on (IG), drive power window switch DOWN (AUTO operation)	10 to 14 V
   D (D18-11) - E (D18-2)	L-B - W-B	Driver door power window motor DOWN output	Ignition switch on (IG), drive power window fully open	Below 1 V
   VCC (D18-19) - SGND (D18-12)	W-R - W-B	Driver door power window motor sensor power source Driver door power window motor sensor ground	Always	10 to 14 V
   LSWD (D18-16) - E (D18-2)	W-L - W-B	Window lock switch output	Driver door lock position ON	10 to 14 V
   			Driver door lock position OFF	Below 1 V

Fig 2: Identifying Power Window Regulator Switch P7 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the P7 switch connector.
2. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
   BDR (P7-12) - Body ground	B-R - Body ground	Power supply	Ignition switch on (IG)	10 to 14 V

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

3. Reconnect the P7 switch connector and reset the power window motor.
4. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
   UP (P7-6) - Body ground	L - Body ground	Power window motor UP output	Ignition switch on (IG), front passenger side power window switch OFF → UP (Manual operation)	0 → 10 to 14 V
   DN (P7-1) - Body ground	L-B - Body ground	Power window motor DOWN output	Ignition switch on (IG), front passenger side power window switch OFF → DOWN (Manual operation)	0 → 10 to 14 V

   If the result is not as specified, the power window regulator switch assembly may have a malfunction

Fig 3: Identifying Power Window Regulator Switch P8 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the P8 switch connector.
2. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Symbols (Terminal No)	Wiring Color	Terminal Description	Condition	Specified Condition
   BDR (P8-12) - Body ground	G-Y - Body ground	Power supply	Ignition switch on (IG)	10 to 14 V

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

3. Reconnect the P8 switch connector and reset the power window motor.
4. Measure the voltage according to the value (s) in the table below.

Standard voltage 

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

Fig 4: Identifying Power Window Regulator Switch P9 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the P9 switch connector
2. Measure the voltage according to the value (s) in the table below.

   Standard voltage 

   VOLTAGE SPECIFIED CONDITION
   
   

   Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
   BDR (P9-12) - Body ground	G - Body ground	Power supply	Ignition switch on (IG)	10 to 14 V

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

3. Reconnect the P9 switch connector and reset the power window motor.
4. Measure the voltage according to the value (s) in the table below.

Standard voltage 

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