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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis - Optima HEV >> DTC C1656: CAN Signal Error Cluster >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Message Monitoring
  1. Abnormal driver door switch or driver seat belt data of CLU
  2. EPB ECU
Enable condition
  • C1616 (CAN BUS Off) no DTC
  • Normal battery condition
  • 2 sec after ignition "ON"
Threshold value
  • Driver Door Switch or Driver Seat Belt ON/OFF status signal is invalid for more than 1 second.
Warning Indicator Lamp Status
  • Warning Indicator Lamp "ON"
Fail Safe
  • Dynamic Braking (ESC) inhibited
  • EPB auto release function inhibited
Reset Condition
  • Ignition "OFF" and then "ON"