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2014 RAM 2500
6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
16 active safety recalls on this vehicle — view recalls🏆Sponsored by Anonymous Sponsor
Repairs436Labor519Torque2084Fluid10DTC1792Battery1Maintenance0Recalls16
P0566low severityPowertrain

Cruise Control Off Signal Malfunction

on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD

What this code means

The PCM has detected a fault in the cruise control 'off' signal circuit. This may cause improper disengagement or operation of the cruise system.

Symptoms

  • Cruise won't disengage properly
  • Erratic cruise behavior
  • No response to off switch

Common causes

  • Faulty cruise control switch
  • Wiring or connector fault
  • Clock spring failure
  • PCM fault

Diagnostic steps

  1. Test off switch signal
  2. Inspect wiring and connectors
  3. Verify signal reaching PCM
  4. Replace switch or repair circuit
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