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HOMESERVICE MANUALSHONDA2009ODYSSEY EX-LREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTGAUGES & INSTRUMENT PANELSELECTRICAL COMPASSELECTRICAL COMPASS UNIT INPUT TEST
2009 Honda Odyssey EX-L

Electrical Compass Unit Input Test

2009 Honda Odyssey EX-LSECTION Electrical Compass Unit Input Test
  1. Remove the headliner (see HEADLINER REMOVAL/INSTALLATION ).
  2. Disconnect the 6P connector (A) from the electrical compass unit (B).
    Fig 1: Identifying 6P Connector And Electrical Compass Unit
    G05526767Courtesy 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 electrical compass unit, turn the ignition switch to ON (II) and perform the following input tests at the connector,
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all input tests prove OK, the electrical compass unit must be faulty; replace it.
      ELECTRICAL COMPASS UNIT INPUT

      Cavity Wire Test Condition Test: Desired result Possible cause if desired result is not obtained
      2 BLK Under all conditions Measure the voltage to ground:
      There should be less than 0.5 V.
      • Poor ground (G501)
      • An open in the wire
      1 YEL Ignition switch ON (ID Measure the 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
      3 WHT Under all conditions Measure the voltage to ground:
      There should be about 4 V.
      • Faulty gauge control module
      • An open in the wire
      • A short to ground in the wire
      4 RED/WHT Under all conditions Measure the voltage to ground:
      There should be about 4 V.
      • Faulty gauge control module An open in the wire
      • A short to ground in the wire
      5 BLU/RED Under all conditions Measure the voltage to ground:
      There should be about 4 V.
      • Faulty gauge control module
      • An open in the wire
      • A short to ground in the wire
      6 ORN Under all conditions Measure the voltage to ground:
      There should be about 4 V.
      • Faulty gauge control module
      • An open in the wire
      • A short to ground in the wire
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.