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Power Window Master Switch Input Test

NOTE: The power window control unit is built into the power window master switch, and it only controls the driver's window operations.
  1. Remove the power window master switch (A) (see POWER WINDOW MASTER SWITCH TEST/REPLACEMENT ).
  2. Disconnect the 20P connector (B) from the master switch.
    Fig 1: Identifying Power Window Master Switch 20P Connector Terminals
    G05456662Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
    • If the terminals look OK, make the following input tests at the connector.
      • If a test indicates a problem, find and correct the cause, then recheck the system.
      • If all the input tests prove OK, go to step  4.
  4. With the connector still disconnected, make these input tests at the connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, go to step  5.
    PROBLEM SYMPTOMS CHART

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    4 BLK Under all conditions Check for continuity to ground:
    There should be continuity.
    • Poor ground (G402)
    • An open in the wire
    8
    6 RED/YEL Connect the No. 14 and No. 6 terminals, and the No. 7 and No. 4 terminals, and turn the ignition switch ON (II). Check for driver's window motor operation:
    It should run (the driver's window moves down).
    • Faulty driver's window motor
    • An open in the wire
    7 RED/BLK
    1 BLU/RED Connect the No. 2 and No. 3 terminals, and the No. 1 and No. 8 terminals, and turn the ignition switch ON (II). Check for front passenger's window motor operation:
    It should run (the front passenger's window moves down).
    • Faulty front passenger's window motor
    • Faulty front passenger's window switch
    • An open in the wire
    3 BLU/WHT
    19 BRN/WHT Connect the No. 18 and No. 17 terminals, and the No. 19 and No. 8 terminals, and turn the ignition switch ON (II). Check for left rear window motor operation:
    It should run (the left rear window moves down).
    • Faulty left rear window motor
    • Faulty left rear window switch
    • An open in the wire
    17 BRN
    12 BLU/ORN Connect the No. 11 and No. 10 terminals, and the No. 12 and No. 8 terminals, and turn the ignition switch ON (II). Check for right rear window motor operation:
    It should run (the right rear window moves down).
    • Faulty right rear window motor
    • Faulty right rear window switch
    • An open in the wire
    10 BRN/YEL
  5. Reconnect the 20P connector to the switch, and perform the following input tests.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, the control unit must be faulty; replace the power window master switch.
    PROBLEM SYMPTOMS CHART

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    4 BLK Ignition switch ON (II), and driver's window moving up or down Measure the voltage to ground:
    There should be less than 0.5 V.
    • Poor ground (G402)
    • An open in the wire
    8 BLK Ignition switch ON (II), main switch on, and a passenger's window moving up or down Measure the voltage to ground:
    There should be less than 0.5 V.
    • Poor ground (G402)
    • An open in the wire
    14 GRN/WHT Under all conditions Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 29 (20 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    5 GRN Ignition switch ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 12 (10 A) fuse in the under-dash fuse/relay box
    • Blown No. 15, 16 or 17 (20 A) fuse in the under-dash fuse/relay box
    • Faulty power window relay
    • An open in the wire
    2 GRN/BLK
    18 YEL/RED
    11 YEL/BLU
    16 RED/WHT Ignition switch ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Faulty power window master switch
    • An open in the wire
    9 LT GRN Ignition switch ON (II), and the driver's window switch in AUTO DOWN Measure the voltage between the No. 20 and No. 9 terminals:
    The voltage should fluctuate between 0 V and about 5 V repeatedly.
    • Blown No. 29 (20 A) fuse in the under-dash fuse/relay box
    • Faulty power window master switch
    • An open in the wire
    20 BLU
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