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Home >> Genesis >> 2023 >> Electrified GV70 Advanced >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Vehicle Control System Diagnosis >> DTC U0129-87: Lost Communication With Brake System Control Module >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Monitor CAN Signal
  1. CAN communication
  2. Open or short in IEB communication line
Prerequisite Condition
  • Ignition "ON"
  • Auxiliary battery voltage is between 10V and 16V
  • Diagnosis is entered when the above conditions are satisfied and maintained for more than 500 ms
Threshold Value
  • Data were not received from the IEB for more than 0.5 seconds
Diagnostic Time
  • 0.5 seconds
MIL
  • ON
NOTE: VCU (EV Control System)
IEB (Integrated Electric Brake System)
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