611
Thermo King
Warning

Check Glow Plug Circuit

A continuity or consumption issue is detected in the glow plug circuit.

Possible causes

  • One or more burnt-out glow plugs
  • Defective glow plug relay
  • Blown high-power fuse

Recommended actions

  • Measure resistance of each glow plug
  • Check voltage arrival at the glow plug rail
  • Verify relay and its fuses

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