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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis (Except HEV) >> DTC C1501-01: Switch Failure >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Ignition ON & Vehicle "STOP".
  2. Connect GDS and select "Data Analysis" mode.
  3. Select "Current Data" mode and monitor "Apply Switch" & "Release Switch" parameter.
  4. Pull and push EPB switch once then let it be in neutral position and check EPB switch status from sensor output.

    Specification:  When the switch is activated, the data changes to ON, OFF

    Fig 1: Screen Display - Apply Switch & Release Switch Parameter
    G11989824Courtesy of HYUNDAI MOTOR AMERICA
  5. Is parameter within specifications?

    YES 

    • Fault is intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and Control Module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Go to Next procedure.