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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.
  • Before testing, make sure the No. 26 (20 A), No. 30 (20 A), No. 32 (20 A), and No. 33 (20 A) fuses in the under-dash fuse/relay box are OK.
  1. Remove the master switch (A) (see MASTER SWITCH TEST/REPLACEMENT  ).
    Fig 1: Identifying Master Switch & 22P Connector
    G05534422Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Disconnect the 22P connector (B) from the master switch.
  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, go to step  4
  4. With the master switch 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.
    TERMINAL REFERENCE TABLE

    Cavity Wire Test condition Test: Desired result Possible cause if desired result is hot obtained
    9 GRN Connect the No. 4 and the No. 9 terminals and No. 10 and No. 11 terminals momentarily with jumper wires Check driver's power window motor operation:
    The window should go down.
    • Faulty driver's power window motor
    • An open in the wire
    10 YEL Connect the No. 4 and the No. 10 terminals and No. 9 and No. 11 terminals momentarily with jumper wires Check driver's power window motor operation:
    The window should go up.
    1 ORN Connect the No. 3 and the No. 2 terminals and No. 1 and No. 12 terminals momentarily with jumper wires Check front passenger's power window motor operation:
    The window should go down.
    • Faulty front passenger's power window motor
    • Faulty front passenger's power window switch
    • An open in the wire
    2 BRN Connect the No. 3 and the No. 1 terminals and No. 2 and No. 12 terminals momentarily with jumper wires Check front passenger's power window motor operation:
    The window should go up.
    13 LT BLU Connect the No. 15 and the No. 14 terminals and No. 13 and No. 12 terminals momentarily with jumper wires Check right rear power window motor operation:
    The window should go down.
    • Faulty right rear power window motor
    • Faulty right rear power window switch
    • An open in the wire
    14 RED Connect the No. 15 and the No. 13 terminals and No. 14 and No. 12 terminals momentarily with jumper wires Check right rear power window motor operation:
    The window should go up.
    21 PUR Connect the No. 20 and the No. 21 terminals and No. 22 and No. 12 terminals momentarily with jumper wires Check left rear power window motor operation:
    The window should go down.
    • Faulty left rear power window motor
    • Faulty left rear power window switch
    • An open in the wire
    22 GRN Connect the No. 20 and the No. 22 terminals and No. 21 and No. 12 terminals momentarily with jumper wires Check left rear power window motor operation:
    The window should go up.
  5. Reconnect the 22P connector to the power window master switch. Turn the ignition switch ON (II), and 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, the control unit must be faulty; replace the power window master switch.
    TERMINAL REFERENCE TABLE

    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    3 GRN Ignition switch to ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 30 (20 A) fuse in the under-dash fuse/relay box
    • Faulty power window relay
    • Faulty MICU
    • An open in the wire
    4 WHT Under all conditions Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 26 (20 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    15 RED Ignition switch to ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 32 (20 A) fuse in the under-dash fuse/relay box
    • Faulty power window relay
    • Faulty MICU
    • An open in the wire
    20 PUR Ignition switch to ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 33 (20 A) fuse in the under-dash fuse/relay box
    • Faulty power window relay
    • Faulty MICU
    • An open in the wire
    7 BRN Under all conditions Measure the voltage to ground:
    There should be less than 0.2 V.
    • Poor ground (G503)
    • An open in the wire
    11 BLK Ignition switch to ON (II), and driver's power window moving up or down Measure the voltage to ground:
    There should be less than 0.2 V.
    • Poor ground (G503)
    • An open in the wire
    12 BLK Ignition switch to ON (II), main switch on, and a passenger's power window moving up or down Measure the voltage to ground:
    There should be less than 0.2 V.
    • Poor ground (G503)
    • An open in the wire
    16 PUR Ignition switch to ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Faulty power window master switch
    • A short to ground in the wire
    5 PNK Ignition switch to ON (II), and driver's power window switch moving up or down Measure the voltage between the No. 5 and No. 7 terminals:
    An analog meter should alternate between 0 V and about 5 V(a digital voltmeter should read about 2.5 V while the window moves).
    • Faulty power window master switch
    • Faulty driver's power window motor
    • An open in the wire
    • A short to ground in the wire
    6 ORN Ignition switch to ON (II), and driver's power window switch moving up or down Measure the voltage between the No. 6 and No. 7 terminals:
    An analog meter should alternate between 0 V and about 5 V(a digital voltmeter should read about 2.5 V while the window moves).
  6. RESETTING THE POWER WINDOW CONTROL UNIT  .
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