602
Thermo King
Warning

Check Intake Throttle Position Sensor

Intake throttle/butterfly position sensor reporting out-of-range values.

Possible causes

  • Damaged throttle position sensor
  • Obstructed or stuck linkage
  • Electrical failure in the sensor circuit

Recommended actions

  • Verify throttle moves freely
  • Measure reference and signal voltages
  • Calibrate or replace the throttle body

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