POWER WINDOW CONTROL SYSTEM Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH

DESCRIPTION

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

• The ECU in the door window regulator determines that the door window regulator motor has not been initialized.

• The rear power window regulator switch LH has a malfunction.

• The Hall IC in the door window regulator motor has a malfunction.

• There is an open or short in the wiring between the rear power window regulator switch LH and the door window regulator motor.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

   
   

   1. Check for DTCs Click here.

      Result

      Result	Proceed to
      DTC is not output	A
      DTC B2311 is output	B
      DTC B2312 is output	C
      DTC B2313 is output	D
      LIN communication system DTCs are output	E

   
   

   B

   GO TO DTC B2311 Click here

   C

   GO TO DTC B2312 Click here

   D

   GO TO DTC B2313 Click here

   E

   GO TO LIN COMMUNICATION SYSTEM Click here

   A

2. CHECK MANUAL UP/DOWN FUNCTION (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH)

   
   

   1. Check that the manual up/down function using the rear power window regulator switch LH can operate the rear door power window LH Click here.

      OK
      Manual up/down function operates.

   
   

   NG

   GO TO "Rear Power Window LH does not Operate with Rear Power Window Switch LH" Click here

   OK

3. READ VALUE USING INTELLIGENT TESTER (REAR DOOR WINDOW REGULATOR ASSEMBLY LH)

   
   

   1. Use the Data List to check if the rear door window regulator is functioning properly Click here.

      RL-Door Motor

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      RL Door P/W Auto SW	Rear power window LH auto up/down signal / ON or OFF	ON: Rear power window LH auto up/down switch operated OFF: Rear power window LH switch not operated	-

      OK
      Display changes according to operation of rear power window switch LH.

   
   

   NG

   INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Click here

   OK

   REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY LH Click here

4. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

   
   

   1. 

      Remove the rear power window regulator switch LH Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 8 (AUTO) - 1 (GND) Auto up/down operation Below 1 Ω 1 (GND) - Body ground Always Below 1 Ω

   
   

   NG

   REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH Click here

   OK

5. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH - REAR DOOR WINDOW REGULATOR ASSEMBLY LH)

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector (to Rear Power Window Regulator Switch LH)
      *2	Front view of wire harness connector (to Rear Door Window Regulator LH)

      Disconnect the M1 switch connector.

   2. Disconnect the M3 regulator connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition M1-8 (AUTO) - M3-4 (AUTO) Always Below 1 Ω M1-8 (AUTO) or M3-4 (AUTO) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY LH Click here