Discovery Energy, LLC (Rehlko)

P1633

ErrorFuel

What This Code Means

Electronic Throttle Driver Overvoltage Shutdown

Possible Causes

  • •Bad throttle body or leads
  • •Throttle driver has received an overvoltage above 30 V

Suggested Actions

  1. 1Troubleshoot the TP sensor leads. Refer to the Throttle Position (TP) Sensor Troubleshooting section.
  2. 2Replace the throttle body. Refer to the Air - Fuel Mixer, Adapter, and Throttle Body Assembly section.
  3. 3Check the alternator output at a raised engine speed.
  4. 4Check harness, engine, and equipment grounds.
  5. 5Check the battery fluid levels and for corrosion.

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