P0340high severityPowertrain

Camshaft Position Sensor A Circuit Bank 1

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

What this code means

Malfunction in the camshaft position (CMP) sensor circuit for Bank 1.

Symptoms

  • Check Engine Light
  • Hard starting
  • Rough running
  • Stalling
  • Misfire

Common causes

  • Faulty CMP sensor
  • Wiring damage
  • Distributor issue (if equipped)
  • Timing chain/belt issue

Diagnostic steps

  1. Test CMP sensor resistance
  2. Check wiring
  3. Scope CMP signal
  4. Check timing belt/chain

Repair notes

Replace CMP sensor. Check timing components.

Other Powertrain codes on this vehicle

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