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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), then open and close the driver's door.
  2. Remove the power window master switch.
  3. Disconnect the 37P connector (A) from the power window master switch (B).
    NOTE: The illustration shows 4-door.
    Fig 1: Identifying Power Window Master Switch Connector Terminals
    G07344815Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. 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 5.
  5. Reconnect the connector to the power window master switch.
  6. Turn the ignition switch to ON (II), and 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 7.
      TROUBLE SYMPTOMS CHART

      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 (501)
      • 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 (502)
      • An open or high resistance in the ground wire
      14 LT GRN Ignition switch ON (II) Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • An open or high resistance in the wire
  7. Turn the ignition switch to LOCK (0), then open and close the driver's door.
  8. Disconnect the 37P connector from the power window master switch again.
  9. 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, the power window master switch must be faulty, replace the power window master switch.
      NOTE:
      • After replacing the power window master switch, reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
      • When testing for defogger function, holding a cup of hot water near the mirror glass will form steam that can assist in diagnosing a broken or under-performing defogger.
      TROUBLE SYMPTOMS CHART

      Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
      9 WHT Ignition switch ON (II), power mirror switch in RIGHT mirror position and the power mirror switch LEFT or DOWN is pressed Measure the voltage to ground:
      There should be battery voltage when the power mirror switch LEFT or DOWN is pressed.
      • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      10 RED Ignition switch ON (II), power mirror switch in RIGHT mirror position and the power mirror switch RIGHT is pressed Measure the voltage to ground:
      There should be battery voltage when the power mirror switch RIGHT is pressed.
      • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      11 GRY Ignition switch ON (II), power mirror switch in RIGHT mirror position and the power mirror switch UP is pressed Measure the voltage to ground:
      There should be battery voltage when the power mirror switch UP is pressed.
      • Blown No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty power mirror switch
      • An open or high resistance in the wire
      1(1) ORN Ignition switch ON (II), connect power window master switch 37P connector 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 (501) or an open in the ground wire
      • An open or high resistance in the wire
      26 PNK Ignition switch ON (II), connect power window master switch 37P connector 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 (501) or an open in the ground wire
      • An open or high resistance in the wire
      27 BLU Disconnect the connectors front passenger's power window switch 37P connector and moonroof unit/motor 14P connector Check the continuity between terminal No. 27 and front passenger's power window switch 37P connector terminal No. 29:
      There should be continuity.      		 An open in the UART wire
      Check the continuity between terminal No. 27 and moonroof control unit/motor 14P connector terminal No. 11:
      There should be continuity.      		 An open in the UART wire
      Check the continuity between terminal No. 27 and body ground:
      There should be no continuity.      		 A short to ground in the UART wire
      (1) With mirror defogger
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