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Control Circuit Input Test

  1. Remove the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).
  2. Disconnect gauge control module connector A (20P) and connector C (40P) from the gauge control module (B).
    Fig 1: Identifying Gauge Control Module Connector A (20P) And Connector C (40P) Terminals
    G05456657Courtesy 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 connectors to the gauge control module, make these input tests at the connectors.
    • 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 5.
    PROBLEM SYMPTOMS CHART

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    A19 BLK Under all conditions Measure the voltage to ground:
    There should be less than 0.5 V.
    • Poor ground (G402)
    • An open in the wire
    A9
    A1 WHT/RED Under all conditions Measure the voltage to ground:
    There should be battery voltage.
    • Blown No.8 (10A) fuse in the under-hood fuse/relay box
    • An open in the wire
    A2 YEL Ignition switch ON (II) Measure the voltage to ground:
    There should be battery voltage.
    • Blown No. 3 (10 A) fuse in the under-dash fuse/relay box
    • An open in the wire
    A14 GRN Driver's door open Measure the voltage to ground:
    There should be less than 1 V.
    • Faulty driver's door switch
    • An open in the wire
    Driver's door closed Measure the voltage to ground:
    There should be 5 V or more.
    • Faulty driver's door switch
    • Short to ground in the wire
    A13 PUR Front passenger's door open (rear doors must be closed) Measure the voltage to ground:
    There should be less than 1 V.
    • Faulty front passenger's door switch
    • An open in the wire
    Front passenger's door closed (rear doors must be closed) Measure the voltage to ground:
    There should be 5 V or more.
    • One of the passenger door switches is faulty
    • Short to ground
    Left (right) rear door open (all other doors must be closed) Measure the voltage to ground:
    There should be less than 1 V.
    • Faulty left (right) rear door switch
    • An open in the wire
    Left (right) rear door closed (all other doors must be closed) Measure the voltage to ground:
    There should be 5 V or more.
    • One of the passenger door switches is faulty
    • Short to ground
    A16 GRN/RED Tailgate open Measure the voltage to ground:
    There should be less than 1 V.
    • Faulty tailgate latch switch
    • Poor ground (G501)
    • An open in the wire
    Tailgate closed Measure the voltage to ground:
    There should be 5 V or more.
    • Faulty tailgate latch switch
    • Short to ground
    C11 GRN/WHT Ignition key inserted into the ignition switch Measure the voltage to ground:
    There should be less than 1 V.
    • Poor ground (G402)
    • Faulty ignition key switch
    • An open in the wire
    Ignition key removed from the ignition switch Measure the voltage to ground:
    There should be 5 V or more.
    • Faulty ignition key switch
    • Short to ground
    C7 YEL/RED Driver's door lock knob switch locked Measure the voltage to ground:
    There should be less than 1 V.
    • Poor ground (G402)
    • Faulty driver's door lock knob switch
    • An open in the wire
    Driver's door lock knob switch unlocked Measure the voltage to ground:
    There should be 5 V or more.
    • Faulty driver's door lock knob switch
    • Short to ground
    C8 WHT/BLK Driver's door lock knob switch unlocked Measure the voltage to ground:
    There should be less than 1 V.
    • Faulty driver's door lock knob switch
    • Poor ground (G402)
    • An open in the wire
    Driver's door lock knob switch locked Measure the voltage to ground:
    There should be 5 V or more.
    • Faulty driver's door lock knob switch
    • Short to ground
    A12 GRN/RED Ceiling light switch in middle position. Attach to ground:
    The ceiling light should come on.
    • Blown No. 8 (10 A) fuse in the under-hood fuse/relay box
    • Faulty ceiling light
    • An open in the wire
  5. Disconnect gauge control module connector A (20P) and connector C (40P) from the gauge control module, and make these input tests at the appropriate 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 control module must be faulty; replace it.
PROBLEM SYMPTOMS CHART

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
C17 BLU/ORN Under all conditions Check for continuity between the C17 terminal and keyless receiver unit 5P connector No. 2 terminal; There should be continuity. An open in the wire
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