P0201moderate severityPowertrain
Injector Circuit/Open - Cylinder 1
on 2014 Ram 2500 6.7L I6 Cummins Diesel · 4WD
What this code means
Open circuit detected in the cylinder 1 fuel injector circuit.
Symptoms
- Check Engine Light
- Misfire cylinder 1
- Rough idle
- Loss of power
Common causes
- Faulty injector #1
- Open wiring to injector
- PCM driver failure
- Corroded connector
Diagnostic steps
- Test injector #1 resistance (typically 11-18 ohms)
- Check wiring continuity
- Swap injector with known good cylinder
- Check PCM output
Repair notes
Replace injector #1 or repair wiring.
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