1148 12

UnclassifiedCooling

What This Code Means

Critical overtemperature (Cylinder head temperature sensor 12); Internal error (Cylinder head temperature sensor 12); Internal temperature error (Cylinder head temperature sensor 12); Open circuit (Cylinder head temperature sensor 12); Overtemperature warning (Cylinder head temperature sensor 12)

Possible Causes

  • Cylinder head temperature sensor 12

Suggested Actions

  1. 1Address critical overtemperature of Cylinder head temperature sensor 12
  2. 2Address internal error of Cylinder head temperature sensor 12
  3. 3Address internal temperature error of Cylinder head temperature sensor 12
  4. 4Address open circuit of Cylinder head temperature sensor 12
  5. 5Address overtemperature warning of Cylinder head temperature sensor 12

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for 1148 12 on your specific Rehlko unit — cited to the OEM manual, not a forum guess.

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