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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> Electrical >> Gauges >> Safety Indicator System >> Safety Indicator Input Test

Safety Indicator Input Test

  1. Remove the gauge assembly (see GAUGE ASSEMBLY REPLACEMENT ).
  2. Disconnect connector A (30P) and connector C (14P or 16P*) from the gauge assembly.

    *: '04-'06 models

  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.
    Fig 1: Identifying Gauge Assembly 30P Connector A Terminals ('03 Model)
    G03642114Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Identifying Gauge Assembly 14P Connector C Terminals ('03 Model)
    G03642115Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 3: Identifying Gauge Assembly 30P Connector A Terminals ('04-06 Models)
    G03642116Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 4: Identifying Gauge Assembly 16P Connector C Terminals ('04-06 Models)
    G03642117Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. With the connectors still disconnected, make these input tests at the connectors.
    • If the test indicates a problem, find and correct the cause, then recheck the system.
    • If the input test proves OK, go to step 5.
    SAFETY INDICATOR INPUT TEST (CONNECTORS DISCONNECTED)

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    A1 WHT/GRN Under all conditions Check for continuity between the A1 terminal and the brake light failure sensor No. 4 (or No. 2(1)) terminal: There should be continuity. An open in the wire
    (1) '04-'06 models
  5. Reconnect the connectors to the gauge assembly, turn the ignition switch ON (II) to keep the system awake and perform the following 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 internal circuit must be faulty.
    SAFETY INDICATOR INPUT TEST (CONNECTORS CONNECTED)

    Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained
    C9(1) BLK Under all conditions Check for voltage to ground: There should be less than 1 V.
    • Poor ground (G501)
    • An open in the wire
    C(1)
    C10(2)    		 YEL 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
    • An open in the wire
    C4(1)
    C5(2)    		 GRN Front passenger's door open Check for 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 Check for voltage to ground: There should be 5 V or more.
    • Faulty front passenger's door switch
    • Short to ground in the wire
    C5(1)
    C6(2)    		 GRN/ORN Driver's door open Check for voltage to ground: There should be less than 1 V.
    • Faulty driver's door switch
    • An open in the wire
    Driver's door closed Check for voltage to ground: There should be 5 V or more.
    • Faulty driver's door switch
    • Short to ground in the wire
    C11(1)
    C14(2)    		 ORN Tailgate open Check for voltage to ground: There should be less than 1 V.
    • Faulty tailgate latch switch
    • An open in the wire
    • Poor ground (G602)
    Tailgate closed Check for voltage to ground: There should be 5 V or more.
    • Faulty tailgate latch switch
    • Short to ground in the wire
    C12(1)
    C15(2)    		 GRN/WHT Right rear door open Check for voltage to ground: There should be less than 1 V.
    • Faulty right rear door switch
    • An open in the wire
    Right rear door closed Check for voltage to ground: There should be 5 V or more.
    • Faulty right rear door switch
    • Short to ground in the wire
    C13(1)
    C16(2)    		 LTGRN/ BLK Left rear door open Check for voltage to ground: There should be less than 1 V.
    • Faulty left rear door switch
    • An open in the wire
    Left rear door closed Check for voltage to ground: There should be 5 V or more.
    • Faulty left rear door switch
    • Short to ground in the wire
    (1) '03 model
    (2) '04-06 models
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