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HOMESERVICE MANUALSHYUNDAI2011EQUUS SIGNATUREREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION DIAGNOSISDTC U0122: LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULEGENERAL INFORMATIONDTC DETECTING CONDITION
2011 Hyundai Equus Signature

General Information: DTC Detecting Condition

2011 Hyundai Equus SignatureSECTION DTC Detecting Condition
DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Check signal
  • CAN communication line open of VDC side
  • CAN communication line short of VDC side
  • VDC ECU
  • Mechatronics (E-module + Valvebody)
Enable Conditions
  • 0.5 second after IG ON
  • Battery voltage > 9V
Threshold Value
  • No message from ECM
  • Input Not available data
Diagnostic Time
  • 0.56 second
Fail Safe
  • (Priority: 2)
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.