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Home >> Kia >> 2020 >> Optima LX >> Repair and Diagnosis >> External Pages >> Different car >> Section 517 (Double Clutch Transmission Diagnosis - 1.6L (4 Of 4)) >> DTC U0100-87: Lost Communication With ECM/PCM >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2023 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN communication monitoring
  • Poor connector connection
  • Faulty P-CAN communication circuit
  • Faulty ECM
Enable Condition
  • Normal battery voltage
  • 0.5s after TCM turns "ON"
Threshold Value
  • Not receive a message from CAN MI-COM
Detecting Time
  • 2s
Fail Safe
  • Inhibited learning control
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