POWER WINDOW CONTROL SYSTEM TERMINALS OF ECU

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

1. 

   *A	for LHD
   *B	for RHD

   Disconnect the U2*1 or T2*2 multiplex network master switch assembly connector.

   
   

   • *1: for LHD

   • *2: for RHD

2. Measure the voltage and resistance according to the value(s) in the table below.

   Tech Tips

   Measure the values on the wire harness side with the connector disconnected.

   for LHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   U2-11 (B) - U2-12 (GND)	LA-GR - LA-R	Power supply	Always	11 to 14 V
   U2-12 (GND) - Body ground	LA-R - Body ground	Ground	Always	Below 1 Ω

   for RHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   T2-11 (B) - T2-12 (GND)	LA-GR - LA-R	Power supply	Always	11 to 14 V
   T2-12 (GND) - Body ground	LA-R - Body ground	Ground	Always	Below 1 Ω

3. Reconnect the U2*1 or T2*2 multiplex network master switch assembly connector.

   
   

   • *1: for LHD

   • *2: for RHD

4. Measure the voltage according to the value(s) in the table below.

   for LHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   U2-15 (DOWN) - U2-12 (GND)	G - LA-R	Power window motor DOWN output	Engine switch on (IG), driver door power window regulator switch not pushed or pulled	11 to 14 V
   			Engine switch on (IG), driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation)	Below 1 V
   U2-20 (UP) - U2-12 (GND)	R - LA-R	Power window motor UP output	Engine switch on (IG), driver door power window regulator switch not pushed or pulled	11 to 14 V
   			Engine switch on (IG), driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation)	Below 1 V

   for RHD

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   T2-15 (DOWN) - T2-12 (GND)	G - LA-R	Power window motor DOWN output	Engine switch on (IG), driver door power window regulator switch not pushed or pulled	11 to 14 V
   			Engine switch on (IG), driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation)	Below 1 V
   T2-20 (UP) - T2-12 (GND)	R - LA-R	Power window motor UP output	Engine switch on (IG), driver door power window regulator switch not pushed or pulled	11 to 14 V
   			Engine switch on (IG), driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation)	Below 1 V

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for LHD)

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for RHD)

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for LHD)

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for RHD)

CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH

1. Disconnect the S9 front multiplex network door ECU LH connector.

2. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   S9-6 (BDR) - S9-1 (GND)	R - W-B	Battery power supply	Always	11 to 14 V
   S9-16 (BCUT) - S9-1 (GND)*	V - W-B	Battery power supply	Always	11 to 14 V
   S9-3 (SIG) - S9-1 (GND)	LA-B - W-B	Engine switch power supply	Engine switch on (IG)	11 to 14 V
   S9-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

   
   

   • *: for LHD

3. Reconnect the S9 front multiplex network door ECU LH connector.

4. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   S9-5 (BDRJ) - S9-1 (GND)	L - W-B	Power window regulator motor power supply	Always	11 to 14 V
   S9-2 (PWE) - Body ground	B - Body ground	Ground	Always	Below 1 V
   S9-15 (CPBJ) - S9-1 (GND)*	GR - W-B	Multiplex network master switch assembly power supply	Always	11 to 14 V
   S9-9 (SGND) - Body ground	R - Body ground	Ground	Always	Below 1 Ω

   
   

   • *: for LHD

CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH

1. Disconnect the R9 front multiplex network door ECU RH connector.

2. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   R9-6 (BDR) - R9-1 (GND)	R - W-B	Battery power supply	Always	11 to 14 V
   R9-16 (BCUT) - R9-1 (GND)*	V - W-B	Battery power supply	Always	11 to 14 V
   R9-3 (SIG) - R9-1 (GND)	LA-B - W-B	Engine switch power supply	Engine switch on (IG)	11 to 14 V
   R9-1 (GND) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

   
   

   • *: for RHD

3. Reconnect the R9 front multiplex network door ECU RH connector.

4. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   R9-5 (BDRJ) - R9-1 (GND)	L - W-B	Power window regulator motor power supply	Always	11 to 14 V
   R9-2 (PWE) - Body ground	B - Body ground	Ground	Always	Below 1 V
   R9-15 (CPBJ) - R9-1 (GND)*	GR - W-B	Multiplex network master switch assembly power supply	Always	11 to 14 V
   R9-9 (SGND) - Body ground	R - Body ground	Ground	Always	Below 1 Ω

   
   

   • *: for RHD

CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

   Click here

2. Reconnect the driver side junction block assembly connectors.

3. Measure the voltage and resistance according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   A-11 (GND1) - Body ground	None - Body ground	Ground	Always	Below 1 Ω
   A-31 (BECU) - Body ground	None - Body ground	Battery power supply	Always	11 to 14 V
   A-30 (ACC) - Body ground	None - Body ground	ACC power supply	Engine switch on (ACC)	11 to 14 V
   			Engine switch off	Below 1 V
   A-32 (IG) - Body ground	None - Body ground	IG power supply	Engine switch on (IG)	11 to 14 V
   			Engine switch off	Below 1 V

4. Install the main body ECU (multiplex network body ECU) to the driver side junction block assembly.

   Click here

5. Measure the voltage and waveform according to the value(s) in the table below.

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
   P7-1 (FLCY) - Body ground	R - Body ground	Courtesy light switch LH input	Front door LH open	Below 1 V
   			Front door LH closed	4.7 to 5.3 V
   P7-6 (FRCY) - Body ground	SB - Body ground	Courtesy light switch RH input	Front door RH open	Below 1 V
   			Front door RH closed	4.7 to 5.3 V
   P9-18 (L2) - Body ground	Y - Body ground	Driver door key-linked lock input	Driver door key cylinder turned to lock	Below 1 V
   			Driver door key cylinder off	Pulse generation
   P9-17 (UL3) - Body ground	LG - Body ground	Driver door key-linked unlock input	Driver door key cylinder turned to unlock	Below 1 V
   			Driver door key cylinder off	Pulse generation