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Home >> Kia >> 2023 >> Carnival SX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (8 Of 8) >> DTC U042B-00: Invalid Data Received From Chassis Control Module 'A' >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN with Hill Assist Control (HAC) (ISG only)
  • Poor connector connection
  • Faulty HECU
  • HECU circuit
Enable Condition
  • Normal battery voltage (9 to 16V)
Threshold Value
  • Communication lost with HAC
Diagnostic Time
  • 2s
MIL ON Condition
  • 2 driving cycles
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