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

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DESCRIPTION

  1. If the AUTO UP/DOWN function does not operate, the cause may be one or more of the following:
  1. The recorded power window fully closed position, which is stored in the multiplex network switch, was erased as a result of: 1) a fuse or relay to the rear door LH power window being replaced; or 2) the battery cable and the switch's connector being disconnected.
  2. The switch has a malfunction.
  3. The pulse sensors in the rear power window regulator motor LH have a malfunction.
  4. The wiring between the switch and the rear power window regulator motor LH is open or short.

WIRING DIAGRAM


B105751E12


INSPECTION PROCEDURE

1.CHECK MANUAL UP/DOWN FUNCTION (REAR LH)

  1. Check that the manual UP/DOWN function operates normally.

    OK:
    Manual UP/DOWN function operates normally.



NG
OTHER PROBLEM
OK


2.CHECK LIGHT OF MULTIPLEX NETWORK SWITCH ASSEMBLY (REAR LH) (AUTO LIGHT)
B108107E03

  1. Turn the engine switch on (IG).

  1. Operate the switch for 2 seconds or more.



  1. Check the blinking pattern of the AUTO light. Compare the blinking pattern with the illustration below.


    B105775E01

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



B
Go to step 4

C
REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (REAR LH)
A


3.RESET REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

  1. Check that the power window operates normally after it is reset.

    OK:
    Power window operates normally.



NG
Go to step 4
OK

END 

4.CHECK WIRE HARNESS (SWITCH ASSEMBLY (REAR LH) - REAR MOTOR ASSEMBLY LH)
B108108E25

  1. Disconnect the U1 switch connector.

  1. Disconnect the Q4 power window motor connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    U1-8 (VCC) - Q4-4 (SSRB)
    		Below 1 Ω
    U1-2 (PLS1) - Q4-3 (PLS)
    		Below 1 Ω
    U1-3 (PLS2) - Q4-5 (PLS2)
    		Below 1 Ω
    U1-5 (SGND) - Q4-6 (E)
    		Below 1 Ω
    U1-8 (VCC) or Q4-4 (SSRB) - Body ground
    		10 kΩ or higher
    U1-2 (PLS1) or Q4-3 (PLS) - Body ground
    		10 kΩ or higher
    U1-3 (PLS2) or Q4-5 (PLS2) - Body ground
    		10 kΩ or higher
    U1-5 (SGND) or Q4-6 (E) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH