POWER WINDOW CONTROL SYSTEM Auto Up / Down Function does not Operate

DESCRIPTION

If the auto up/down function does not operate, the cause may be one or more of the following:

• The recorded power window fully closed position, which is stored in the power window regulator master switch assembly, was erased as a result of: 1) the PWR H-fuse or DOOR fuse being replaced; or 2) the battery cable and the master switch's connector being disconnected.

• The power window regulator master switch assembly has a malfunction.

• The pulse sensors in the front power window regulator motor assembly (for driver side)*1 or front door window regulator sub-assembly*2 have a malfunction.

• The wiring between the power window regulator master switch assembly and the front power window regulator motor assembly (for driver side)*1 or front door window regulator sub-assembly*2 is open or short-circuited.

• *1: w/o Regulator

• *2: w/ Regulator

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK MANUAL UP/DOWN FUNCTION (FOR DRIVER SIDE)

   
   

   1. Check that the manual up/down function operates normally.

      OK
      Manual up/down function operates normally.

   
   

   NG

   GO TO DRIVER SIDE POWER WINDOW MANUAL FUNCTION DOES NOT OPERATE WITH POWER WINDOW MASTER SWITCH Click here

   OK

2. CHECK LIGHT OF POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

   
   

   1. Turn the ignition switch ON.

      

      Text in Illustration

      *A	for LHD	*B	for RHD
      *1	AUTO Light	-	-

   2. Operate the master switch's driver side power window switch for 2 seconds or more.

   3. Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration.

      

      Result

      Blinking Pattern	Proceed to
      1 or 3	A
      2	B
      4	C

   
   

   B

   CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR [FOR DRIVER SIDE] OR FRONT DOOR WINDOW REGULATOR [FOR DRIVER SIDE]) Click here

   C

   REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

   A

3. RESET FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER SIDE) OR FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY (FOR DRIVER SIDE)

   
   

   1. Check that the power window operates normally after reset Click here.

      OK
      Power window operates normally.

   
   

   NG

   CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR [FOR DRIVER SIDE] OR FRONT DOOR WINDOW REGULATOR [FOR DRIVER SIDE]) Click here

   OK

   END

4. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR [FOR DRIVER SIDE] OR FRONT DOOR WINDOW REGULATOR [FOR DRIVER SIDE])

   
   

   • *1: for LHD

   • *2: for RHD

   • *3: for Double Cab

   • *4: except Double Cab

   
   

   1. Disconnect the P4 power window regulator master switch assembly connector.

   2. w/o Regulator:

      
      

      1. Disconnect the P5*1 or P6*2 front power window regulator motor assembly (for driver side) connector.

   3. w/ Regulator:

      
      

      1. Disconnect the P5*1 or P6*2 front door window regulator sub-assembly (for driver side) connector.

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

      Standard Resistance
      for LHD Tester Connection Condition Specified Condition P4-3 (VCC) - P5-4 (SSRB)*3 P4-10 (VCC) - P5-4 (SSRB)*4 Always Below 1 Ω P4-14 (PLS) - P5-5 (PLS)*3 P4-11 (PLS) - P5-5 (PLS)*4 Always Below 1 Ω P4-17 (PLS2) - P5-3 (PLS2)*3 P4-14 (PLS2) - P5-3 (PLS2)*4 Always Below 1 Ω P4-2 (GND) - P5-6 (E) Always Below 1 Ω P4-3 (VCC) or P5-4 (SSRB) - Body ground*3 P4-10 (VCC) or P5-4 (SSRB) - Body ground*4 Always 10 kΩ or higher P4-14 (PLS) or P5-5 (PLS) - Body ground*3 P4-11 (PLS) or P5-5 (PLS) - Body ground*4 Always 10 kΩ or higher P4-17 (PLS2) or P5-3 (PLS2) - Body ground*3 P4-14 (PLS2) or P5-3 (PLS2) - Body ground*4 Always 10 kΩ or higher
      for RHD Tester Connection Condition Specified Condition P4-3 (VCC) - P6-4 (SSRB)*3 P4-10 (VCC) - P6-4 (SSRB)*4 Always Below 1 Ω P4-14 (PLS) - P6-5 (PLS)*3 P4-11 (PLS) - P6-5 (PLS)*4 Always Below 1 Ω P4-17 (PLS2) - P6-3 (PLS2)*3 P4-14 (PLS2) - P6-3 (PLS2)*4 Always Below 1 Ω P4-2 (GND) - P6-6 (E) Always Below 1 Ω P4-3 (VCC) or P6-4 (SSRB) - Body ground*3 P4-10 (VCC) or P6-4 (SSRB) - Body ground*4 Always 10 kΩ or higher P4-14 (PLS) or P6-5 (PLS) - Body ground*3 P4-11 (PLS) or P6-5 (PLS) - Body ground*4 Always 10 kΩ or higher P4-17 (PLS2) or P6-3 (PLS2) - Body ground*3 P4-14 (PLS2) or P6-3 (PLS2) - Body ground*4 Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (PLS, PLS2 SIGNAL)

   
   
   1. 

      Text in Illustration

      *A	for Double Cab
      *B	except Double Cab
      *a	Component with harness connected (Power Window Regulator Master Switch Assembly)

      Remove the power window regulator master switch assembly with its connectors still connected.

   2. Using an oscilloscope, check the waveform.

      OK
      for Double Cab Tester Connection Switch Condition Specified Condition P4-14 (PLS) - Body ground Ignition switch ON, driver side power window switch off → up or down Pulse waveform is output P4-17 (PLS2) - Body ground Ignition switch ON, driver side power window switch off → up or down Pulse waveform is output
      except Double Cab Tester Connection Switch Condition Specified Condition P4-11 (PLS) - Body ground Ignition switch ON, driver side power window switch off → up or down Pulse waveform is output P4-14 (PLS2) - Body ground Ignition switch ON, driver side power window switch off → up or down Pulse waveform is output

      Result

      Result	Proceed to
      NG	A
      OK (w/o Regulator)	B
      OK (w/ Regulator)	C

   
   

   B

   REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER SIDE)

   C

   REPLACE FRONT DOOR WINDOW REGULATOR SUB-ASSEMBLY (FOR DRIVER SIDE)

   A

   REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY