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Combination Switch Control Unit Input Test

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the steering column covers (see STEERING COLUMN REMOVAL AND INSTALLATION ).
  2. Disconnect the 8P connector from the wiper/washer switch.
    Fig 1: Disconnecting 8P Connector From Wiper/Washer Switch
    G03706627Courtesy 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, go to step 4.
  4. Reconnect the connector to the control unit, 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 combination switch control unit must be faulty, replace the wiper/washer switch.
    POSSIBLE CAUSE

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    3 BLK Under all conditions Check for voltage to ground: There should be less than 1 V.
    • Poor ground (G601)
    • An open in the wire
    8 WHT/RED Under all conditions 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
    • An open in the wire
    7 YEL Ignition switch ON (II) Check for voltage to ground: There should be battery voltage.
    • Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box
    • An open in the wire
    4 LT GRN Under all conditions Check for continuity between No. 4 terminal and the driver's under-dash fuse/relay box connector X (39P) No. 27 terminal:
    There should be continuity.
    An open in the wire