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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 58 (HEV Control System Diagnosis - HEV) >> DTC U0129: Lost Communication With Brake System Control Module >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible cause
DTC strategy
  • CAN Signal Check
  1. Poor connection
  2. CAN communication
  3. Open or short in ABS communication line
Enable conditions
  • IG ON
  • HCU READY ON
  • Aux. Battery Voltage is between 9V and 16V
Threshold value
  • No signal via CAN for 0.5 seconds or receiving Error value
Diagnosis Time
  • 0.5 sec.
DTC
  • 2 Driving Cycle
MIL On Condition
  • -
Service Lamp On Condition
  • 2 Driving Cycle
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