Power Solutions International

DTC 52

UnclassifiedGeneral

What This Code Means

Malfunction Indicator Light (MIL) ON during active fault

Possible Causes

  • •Voltage feedback from the UEGO sensor heater is always equal to the battery or supply voltage (short to Vbattery)
  • •UEGO heater control signal does not achieve zero volts when the heater is switched on
  • •Internal fault within the ECM

Related Power Solutions International Fault Codes

DTC 102 9DTC 121DTC 51DTC 123DTC 15 74DTC 127DTC 2 99DTC 129DTC 2 34DTC 148DTC -1644DTC 234
Browse all Power Solutions International fault codes

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