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Home >> Kia >> 2021 >> Forte FE, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Cluster Module Diagnosis) >> DTC B1090-55: TCU Present Error >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2024 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Check the CAN communication
  • Check the CLU's option information and performance
  • Perform CLU coding procedure
  • Check the TCM (PCM)
  • Check the CAN line
  • Check the CLU
Enable Conditions
  • Ignition "ON"
  • During the C-CAN communication
Threshold Value Case1
  • An EOL coding error of the TCM (PCM)
Case2
  • The EOL has no TCM (PCM) option information, but the TCM (PCM) exists on the CAN bus
Detecting Time
  • 2s
DTC Erasing Case1
  • In case of correctly performed coding procedure
Case2
  • Erased DTC after solved problem
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