603
Thermo King
Warning

Check Exhaust Pressure Sensor

Fault in the exhaust pressure sensor, affecting emission control.

Possible causes

  • Pressure tube clogged with soot
  • Defective pressure sensor
  • Exhaust leak before the sensor

Recommended actions

  • Remove and clean the pressure intake tube
  • Check exhaust system for leaks
  • Verify sensor reading with an external gauge

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