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Gauge Control Module Input Test

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.
NOTE: If there is malfunction of the parking brake reminder and speedometer function simultaneously, troubleshooting the vehicle speed signal circuit first.
  1. Remove the gauge control module and disconnect the 36P connector B from the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
  2. 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 3.
      Fig 1: Identifying Gauge Control Module 36P Connector B Terminals
      G04247145Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Reconnect the connectors to the gauge control module, 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 gauge internal circuit must be faulty; replace the gauge control module.
      REFERENCE CHART (GAUGE CONTROL MODULE DISCONNECTED)

      Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
      B9 BLU/RED Ignition switch ON (II), driver's seat belt unbuckled Check for voltage to ground:
      There should be less than 1 V.
      • Poor ground (G801)
      • Faulty driver's seat belt switch
      • An open in the wire
      Ignition switch ON (II), driver's seat belt buckled Check for voltage to ground:
      There should be 5 V or more.
      • Faulty driver's seat belt switch
      • A short to ground
      B10 BLU/YEL Ignition switch ON (II), engine OFF Check for voltage to ground:
      There should be less than 1 V.
      • Faulty oil pressure switch
      • An open in the wire
      Start the engine Check for voltage to ground:
      There should be battery voltage.
      • Insufficient oil
      • Improper lubrication
      • Faulty engine oil pressure switch
      • An open in the wire
      • A short in the wire
      B5 GRN/RED Ignition switch ON (II), parking brake set Check for voltage to ground:
      There should be less than 1 V.
      • Faulty parking brake switch
      • An open in the wire
      Ignition switch ON (II), parking brake released Check for voltage to ground:
      There should be 5 V or more.
      • Faulty parking brake switch
      • A short to ground
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