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C2421 Code – Motor Temperature Sensor Low Input

What are the Possible Causes of the Code C2421?
  • Contamination of Oil/Clog of Oil path
  • Faulty Motor Pump Unit (MPU)
  • Motor Pump Unit (MPU) harness is open or shorted
  • Motor Pump Unit (MPU) circuit poor electrical connection
  • Need help with this OBD II code? Our mechanics are available within west Michigan to help. Outside of our service area? Visit our Car Help Section where you can ask questions and get answers.

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