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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Parking Brake System Diagnosis (HEV) >> DTC C1103-01: Ignition Switch-Signal Error >> Wiring Inspection >> C-CAN Communication Line Inspection >> Check Open in CAN Communication Line

Check Open in CAN Communication Line

  1. Ignition switch 'OFF'.
  2. Disconnect EPB Module connector and Central Gate Way (CGW: IGPM-Gate Way) connector.
  3. Measure the resistance between CAN High terminal of EPB Module harness connector and C-CAN High terminal of Central Gate Way (CGW: IGPM-Gate Way) harness connector.
  4. Measure the resistance between CAN Low terminal of EPB Module harness connector and C-CAN Low terminal of Central Gate Way (CGW: IGPM-Gate Way) harness connector.

    Specification  : Below 1Ω

  5. Is the measured value within specification?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or Control module's connector or was repaired and Control module's memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
    • Repair or replace as necessary, and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    • Perform actuation by GDS and check whether it is operating correctly.

    NO