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Home >> Kia >> 2020 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (Dual Clutch Transmission Diagnosis - 1.6L (2 Of 2) (Except HEV)) >> DTC U0001-88: CAN Communication Bus Off >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Monitoring
  1. Poor Connector Connection
  2. Faulty C-CAN Communication Circuit
Enable Condition
  • Battery Voltage is above 10V
  • 0.5s after TCM turns "ON"
Threshold Value
  • CAN BUS OFF is detected
Detecting Time
  • 1s
Fail Safe
  • Inhibited learning control
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