P0341 — Camshaft Position Sensor A Circuit Range/Performance — 5.9 Cummins 24-Valve (VP44)
Diagnostic reference for 5.9L Cummins 24-Valve (VP44) 1998.5–2002.
What it means
The ECM has detected the camshaft position sensor signal is outside expected range or performance. On this platform the engine is inline-6 with gear-driven timing, single crank sensor, single cam sensor.1
Most likely causes
- Camshaft position sensor signal erratic/out of range — ECM sees cam signal outside expected range/performance. Generic definition for P0341 is camshaft position sensor signal outside expected range or performance.2
- Wiring/connector fault to camshaft position sensor — Open, short, corrosion or chafing can cause range/performance fault. Signal integrity issues are consistent with circuit range/performance definition.2
- ECM/PCM internal fault affecting sensor processing — Control module processor or self-test fault can misinterpret sensor input. PCM processor performance fault is documented for this platform.1
How to diagnose
- Verify code and freeze frame; confirm P0341 is present and not accompanied by crank sensor codes.
- Inspect camshaft position sensor connector and wiring for damage, corrosion, oil contamination, and proper routing.
- Check sensor supply voltage and ground per service information; look for intermittent opens/shorts.
- Monitor camshaft position sensor signal with scan tool during cranking/running; compare to crank sensor correlation.
- Inspect timing components for correct installation; engine uses gear-driven timing with single cam sensor.
- Check ECM/PCM powers and grounds; consider control module processor performance issues documented for this platform.
Parts and tools you may need
- Digital multimeter
- Scan tool with live data
- Wiring diagram
- Contact cleaner
- Basic hand tools
Tools you’ll need
- OBD-II scan tool — Read P0341 and freeze frame, then monitor live camshaft position sensor signal versus crank sensor correlation during cranking and running.
- Digital multimeter — Verify camshaft position sensor supply voltage, ground integrity, and wiring continuity to detect opens, shorts, or corrosion affecting signal range.
- Oscilloscope — Capture the camshaft position sensor waveform to confirm signal amplitude, pattern, and timing relative to the crank sensor for erratic/out-of-range performance.
- Inspection light — Visually inspect the camshaft position sensor connector and wiring harness for damage, oil contamination, corrosion, and proper routing.
Rough cost and difficulty
| Likely repair | Parts | Shop labor | Who usually does it |
|---|---|---|---|
| ECM/PCM software update | — | 0.5–1.5 hrs | Shop |
| Wiring or connector repair | $10–$100 | 1–4 hrs | DIY with tools and a manual |
| Crankshaft or camshaft position sensor | $40–$200 | 0.5–2 hrs | DIY with tools and a manual |
| ECM/PCM replacement (programmed) | $600–$2,000 | 1–3 hrs | Shop |
Typical US independent-shop figures; labor runs about $120–$180 per hour (dealers charge more). Confirm the diagnosis before buying parts.
When to see a pro
If diagnosis points to ECM/PCM internal fault, high-pressure fuel system, or requires timing verification, have a qualified diesel technician evaluate. Do not perform step-by-step repair of safety-critical systems.
Check for recalls
Recalls are tied to your truck’s VIN, so check yours directly: enter the VIN at NHTSA’s recall lookup. Open safety recalls are repaired free at a dealer.
Sources
Repair videos: P0341 on the 5.9 Cummins 24V
Third-party videos, not ours — picked for this engine. Confirm anything against the factory service information for your truck.
Spotted an error, or something missing? Tell us
Run a 5.9 Cummins 24-Valve (VP44)? This goes straight to the editor — it is not published.