P1299 Acura Cylinder Head Overtemperature Protection Active

P1299 Acura Cylinder Head Overtemperature Protection Active

Possible causes
  • Engine cooling system concerns.
  • Low engine coolant level.
  • Base engine concerns.
    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1299 Acura Description

    Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. An FMEM strategy called Fail-safe Cooling was activated to cool the engine.

    Acura Vehicle:

    Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX