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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Multi Function Camera Diagnosis (PHEV) >> DTC C1656-86: Invalid Signal Of CLU >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • CAN signal monitoring
  1. Poor connector connection
  2. Short in Instrument Cluster CAN circuit
  3. Faulty Instrument Cluster
  4. Faulty MFC/LKAS/LDWS ECU
Enable Conditions
  • Engine "ON".
  • Normal battery voltage (9±0.5 - 16±0.5V)
  • DTC C160449/C161687 are not stored.
Threshold Value
  • CLU CAN message is invalid.
Detecting Time
  • 2s
Recovery Time
  • 2 times consecutively received normal CAN message
Recovery Condition
  • Normal CLU CAN message is received.
Warning Lamp
  • MFC/LKAS/LDWS Lamp "ON"
Fail-safe LDW (Lane Departure Warning)
  • Function inhibited
HBA (High Beam Assist)
  • Function inhibited
AEB (Autonomous Emergency Braking)
  • Function inhibited
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