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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis - Optima HEV >> DTC C1642: CAN Signal Error ESC (ESP) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Message Monitoring - wheel speed
  1. Abnormal wheels speed data of AHB message (CAN message)
  2. EPB ECU
Enable condition
  • C1616 (CAN BUS Off) no DTC
  • Normal battery condition
  • 2 sec after ignition "ON"
Threshold value
  • Abnormal wheels speed data of AHB message (CAN message) for 0.2 sec.
Warning Indicator Lamp Status
  • Warning Indicator Lamp "ON"
Fail Safe
  • Dynamic Braking (ESC) inhibited
Reset Condition
  • Ignition "OFF" and then "ON"
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