OBD-II FAULT CODE
P0655

Engine Hot Lamp Output Control Circuit Malfunction

Meaning, symptoms, likely causes, diagnostic checks and repair guidance for P0655.

PowertrainSystem
LightingCategory
MediumSeverity
  • Check Engine light
  • Poor drivability or reduced fuel economy depending on fault
  • Blown bulb/LED module
  • Poor ground
  • Fuse/relay fault
  • Switch/module/wiring issue
  • Scan all modules and record freeze-frame data before clearing codes
  • Check battery voltage and related fuses
  • Check bulb/module, fuse, ground and connector corrosion
  • Replace failed bulb/module, repair ground/wiring, replace switch/relay if confirmed
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Disclaimer: Information is provided for general guidance only and may not apply to all vehicles. Always consult a qualified technician.