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Power Window Master Switch Input Test

NOTE: Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Turn the ignition switch to LOCK (0), and remove the power window master switch (see REAR POWER WINDOW SWITCH TEST/REPLACEMENT ).
  2. Disconnect the 37P connector (A) from the power window master switch (B).
    Fig 1: Identifying Power Window Master Switch & 37P Connector
    G05966521Courtesy of AMERICAN HONDA MOTOR CO., INC.

    *: With mirror defogger 

  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 connector still disconnected, do 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, go to step  5.
      WIRE CONDITION TABLE

      Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
      9 PNK Ignition switch ON (II), power mirror switch in RIGHT mirror position Measure the voltage to ground:
      There should be battery voltage when the power mirror switch LEFT or DOWN is pressed.
      • Blown No. 36 (10 A) fuse in the under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      • Faulty under-dash fuse/relay box
      10 LT GRN Ignition switch ON (II), power mirror switch in RIGHT mirror position Measure the voltage to ground:
      There should be battery voltage when the power mirror switch RIGHT or DOWN is pressed.
      • Blown No. 36 (10 A) fuse in the under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      • Faulty under-dash fuse/relay box
      11 GRN Ignition switch ON (II), power mirror switch in RIGHT mirror position Measure the voltage to ground:
      There should be battery voltage when the power mirror switch UP or LEFT is pressed.
      • Blown No. 36 (10 A) fuse in the under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      • Faulty under-dash fuse/relay box
      1(1) ORN Ignition switch ON (II), connect terminals No. 14 and No. 1 with a jumper wire Check the left power mirror defogger operation:
      The left power mirror defogger should work (the inside lower edge becomes warm).
      • Faulty left power mirror defogger
      • Poor ground (G401)or an open in the ground wire
      • An open or high resistance in the wire
      26 LT BLU Ignition switch ON (II), connect terminals No. 14 and No. 26 with a jumper wire Check the power mirror switch light operation:
      The power mirror switch light should come on.
      • Faulty LED
      • Faulty power mirror switch
      • Poor ground (G401) or an open in the ground wire
      • An open or high resistance in the wire
      (1) With mirror defogger
  5. Reconnect the connector to the power window master switch, turn the ignition switch to ON (II), and do the following input tests at the following connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, the door multiplex control unit is faulty; replace the power window master switch (see REAR POWER WINDOW SWITCH TEST/REPLACEMENT ).
    NOTE: After replacing the power window master switch, reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
    WIRE CONDITION TABLE

    Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
    32 BLK In all ignition switch positions Measure the voltage to ground:
    There should be less than 0.2 V.
    • Poor ground (G401)
    • An open or high resistance in the ground wire
    37 BLK In all ignition switch positions Measure the voltage to ground:
    There should be less than 0.2 V.
    • Poor ground (G401)
    • An open or high resistance in the ground wire
    14 YEL Ignition switch ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 36 (10 A) fuse in the under-dash fuse/relay box
    • An open or high resistance in the wire
    • Faulty under-dash fuse/relay box
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