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Rear Window

WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
  1. Before testing the wiper/washer control functions, troubleshoot the multiplex control system (see TROUBLESHOOTING ).

    2. Passenger's Multiplex Control Unit 

  2. Remove the passenger's multiplex control unit from the passenger's under-dash fuse/relay box, and disconnect its connector.
  3. Inspect all 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.
      Fig 1: Identifying Passenger's Multiplex Control Unit Connector Terminals
      G04247275Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. With the passenger's multiplex control unit still disconnected, make these input tests at the connector and passenger's under-dash fuse/relay box sockets.
    • 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 control unit.
      TERMINALS REFERENCE TABLE

      Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
      A22 Fuse/relay box socket Ignition switch ON (II) Check for voltage to ground:
      There should be battery voltage.
      • Blown No. 9 (10 A) fuse in the driver's under-dash fuse/relay box
      • Faulty driver's fuse/relay box
      • An open in the wire
      B22(1) BLK Under all conditions Check for voltage to ground:
      There should be less than 1 V.
      • Poor ground (G503)
      • An open in the wire
      B16 RED/BLU Ignition switch ON (II) Attach to ground:
      The rear window wiper motor should run.
      • Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty rear window intermittent wiper relay
      • An open in the wire
      B14
      B16      		 LT GRN/BLK and RED/BLU Ignition switch ON (II) Attach B16 to ground, check for voltage between B14 and ground:
      There should be 4 V or more with the wiper in the park position and 0 V as it sweeps.
      • Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty rear window intermittent wiper relay
      • Faulty rear window wiper motor
      • An open in the wire
      B15(1) BLU/GRN Ignition switch ON (II) and rear wiper switch ON Check for voltage to ground:
      There should be battery voltage.
      • Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty wiper/washer switch
      • An open in the wire
      B18(1) GRN/YEL Ignition switch ON (II) and washer switch ON Check for voltage to ground:
      There should be battery voltage.
      • Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box
      • Faulty wiper/washer switch
      • An open in the wire
      (1) Make this test at passenger's multiplex control unit connector B with all connectors reconnected
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