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DTC U0131-433 Lost Communication with Power Steering Control Module; DTC U0131-434 Lost Communication with Power Steering Control Module: Description

If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open. (One side of the CANH [branch wire] /CANL [branch wire] of the ECU and/or sensor is open.)

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
  • U0131-433
  • U0131-434
 When either condition below is met:
  • "EPS" is not displayed on the "BUS CHECK" screen of the intelligent tester
  • Applies to "POWER STEERING ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
  • Power source circuit of power steering ECU
  • Power steering ECU branch wire or connector
  • Power steering ECU
  • One side of CAN branch wire
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