Diesel Trouble Codes

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.

Updated September 2, 2026

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

  1. 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
  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
  3. 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

  1. Verify code and freeze frame; confirm P0341 is present and not accompanied by crank sensor codes.
  2. Inspect camshaft position sensor connector and wiring for damage, corrosion, oil contamination, and proper routing.
  3. Check sensor supply voltage and ground per service information; look for intermittent opens/shorts.
  4. Monitor camshaft position sensor signal with scan tool during cranking/running; compare to crank sensor correlation.
  5. Inspect timing components for correct installation; engine uses gear-driven timing with single cam sensor.
  6. Check ECM/PCM powers and grounds; consider control module processor performance issues documented for this platform.

Parts and tools you may need

Rough cost and difficulty

Parts and labor vary by region and vehicle condition. No fixed cost provided in sources.

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.

Sources

  1. Curated DTC seed — 5.9 Cummins 24-Valve (VP44) (curated) ↩︎ ↩︎

  2. Curated DTC seed — 5.9 Cummins 24-Valve (VP44) (curated) ↩︎ ↩︎