2009 Acura TL BaseFACTORY OEM SERVICE PROCEDURE

Driver's Power Window Motor Test

Motor Test 

  1. Remove the driver's door panel (see FRONT DOOR PANEL REMOVAL/INSTALLATION ), and disconnect the driver's door wire harness connectors (A) from the driver's door subharness
    Fig 1: Identifying Driver's Door Wire Harness Connectors
    G05989008Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. At the driver's door wire harness 28P connector, test the power window motor in each direction by connecting battery power and ground according to the table When the motor stops running, disconnect one lead immediately
    Fig 2: Power Window Motor Connector Terminals Chart
    G05989009Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. If the motor does not run or fails to run smoothly, go to step 4, if the motor runs smoothly, go to step  7
  4. Disconnect the 6P connector (A) from the driver's power window motor (B)
    Fig 3: Identifying Driver's Power Window Motor And 6P Connector
    G05989010Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Check for continuity between driver's door harness 28P connector terminals No 2 and No 16, and driver's power window motor 6P connector terminals No 1 and No 4 respectively There should be continuity

    DRIVER'S DOOR HARNESS 28P CONNECTOR 

    Terminal No 2

    Terminal No 16

    DRIVER'S POWER WINDOW MOTOR 6P CONNECTOR 

    Terminal No 1

    Terminal No 4

    Fig 4: Checking Continuity Between Driver's Door Harness 28P Connector Terminals And Driver's Power Window Motor 6P Connector Terminals
    G05989011Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. If there is no continuity, repair open in the wires If the wire harness is OK, replace the driver's power window motor

    Pulser Test 

  7. Check for continuity between driver's power window motor 6P connector terminal No 2 and body ground There should be continuity
    • If there is continuity, go to step 8
    • If there is no continuity, check for an open in the BLK and/or GRY wire or poor ground (G401)
    Fig 5: Checking Continuity Between Driver's Power Window Motor 6P Connector Terminal And Body Ground
    G05989012Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Do the power window master switch input test terminals No 3, No 20, and No 22 (see POWER WINDOW MASTER SWITCH INPUT TEST )
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.