Master Switch Test/Replacement

2008 Acura CSX Base, K20Z1SECTION Master Switch Test/Replacement
  1. Carefully pry out the master switch (A).
    Fig 1: Identifying Master Switch Connector
    G06268799Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Disconnect the 22P connector (B) from the power window master switch.
  3. Check for continuity between the terminals in each switch position according to the tables.

    Driver's Switch 

    The driver's switch is combined with the control unit, so you cannot isolate the switch to test it. Instead, run the master switch input test procedures (see MASTER SWITCH INPUT TEST  ). If the tests are normal, the driver's switch must be faulty. Replace the switch.

    Front Passenger's Switch 

    Fig 2: Front Passenger's Switch Continuity Chart
    G06278103Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Left Rear Switch 

    Fig 3: Left Rear Switch Continuity Chart
    G06278104Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Right Rear Switch 

    Fig 4: Right Rear Switch Continuity Chart
    G06278105Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the continuity is not as specified, remove the screws and replace the switch.
  5. Install the switch in the reverse order of removal.
RENDER: 1.0x

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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.