P2323moderate severityPowertrain
Ignition Coil D Primary Control Circuit/Open
on 2007 Ram 3500 5.9L I6 Cummins · 4WD
What this code means
The PCM detects an open or fault in the primary control circuit for ignition coil D. This can cause misfires and rough engine operation.
Symptoms
- Engine misfire
- Check engine light on
- Rough idle or hesitation
Common causes
- Faulty ignition coil D
- Open in coil primary wiring
- Corroded coil connector
- PCM driver circuit fault
Diagnostic steps
- Scan for coil and misfire codes
- Inspect coil D connector and wiring
- Test coil primary circuit continuity
- Replace ignition coil if faulty
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