612
Thermo King
Warning

Check Intake Throttle Circuit

Electrical problem in the intake throttle actuator or circuit.

Possible causes

  • Burnt throttle actuator
  • Damaged control circuit wiring
  • High internal resistance in the solenoid

Recommended actions

  • Check actuator connector
  • Measure throttle motor/solenoid resistance
  • Verify continuity to the ECU

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