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Home / DTC / P0341 — Camshaft Position Sensor A Circuit Range/Performance Bank 1 or Single Sensor

P0341 — Camshaft Position Sensor A Circuit Range/Performance Bank 1 or Single Sensor

Detailed page for trouble code P0341.

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P0341

Generic P — Powertrain

Camshaft Position Sensor A Circuit Range/Performance Bank 1 or Single Sensor

Brand: Generic
Type: P — Powertrain
Views: UK: 23 EN: 66 RU: 41
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Page language: EN

Causes

  • Faulty camshaft position sensor (Bank 1, sensor A)
  • Damaged wiring, corroded connector, poor pin contact or open/short
  • Weak or missing sensor reference power or ground
  • Intermittent connector fit (oil intrusion, bent pins)
  • Faulty reluctor wheel, tone ring, or missing/broken teeth
  • Camshaft or timing chain/gear wear, stretched chain or jumped timing

Symptoms

  • Check Engine Light (MIL) illuminated
  • Engine misfire, rough idle or stalling
  • Hard starting or no-start condition (in some cases)
  • Reduced engine power, hesitation or poor acceleration
  • Reduced fuel economy or increased emissions
  • Possible diagnostic trouble codes related to crank/cam correlation

What to check

  • Read freeze frame and DTCs with a scan tool; note conditions when set (RPM, load, temp)
  • Inspect sensor connector and wiring harness for damage, oil contamination or corrosion
  • Wiggle test harness while monitoring live cam sensor data to try to reproduce change
  • Confirm battery voltage and charging system are nominal during testing
  • Backprobe sensor connector to verify reference power and ground are present
  • Measure sensor output with a multimeter or oscilloscope while cranking/idle and at higher RPM

Signal parameters

  • Hall-effect/logic-type cam sensors: typical 0–5 V square/pulse waveform (duty changes with cam position)
  • Variable-reluctor (magnetic) cam sensors: low-voltage AC/sine waveform that increases with RPM (may read ~0.2–1.5 V AC at idle, rising with RPM)
  • Expected consistent pulse pattern and timing relationship to crank position; missing, distorted, or shifted pulses indicate a problem
  • Reference power commonly 5 V or switched 12 V and a reliable ground (verify per vehicle)

Diagnostic algorithm

  1. Verify code and freeze-frame data. Note engine RPM, temperature, and load when P0341 set.
  2. Visually inspect cam sensor, connector, and wiring for damage, oil, corrosion or loose pins; repair as needed.
  3. Check battery voltage and charging while cranking and testing; low voltage can cause spurious readings.
  4. Backprobe sensor connector: confirm reference power (5 V or battery switched), signal output, and ground continuity to chassis/PCM.
  5. Monitor live cam sensor signal with a scan tool or oscilloscope. Look for correct waveform shape and amplitude and consistent pulses at various RPMs.
  6. Compare cam signal timing to crankshaft position sensor (CKP) pattern using scope or correlation function on scan tool. Look for missing pulses or a cam-crank timing offset.
  7. If signal is missing or erratic but wiring and power/ground are good, substitute a known-good cam sensor or bench-test sensor per service info.
  8. If cam/crank correlation is off or waveform is present but timing is incorrect, inspect timing chain/belt, sprockets, phaser and reluctor ring for wear, damage or jumped timing.
  9. Repair or replace faulty wiring, connector, sensor, phaser, or timing components as determined. Clear codes and test drive to confirm the fault does not return.
  10. If wiring, sensor and mechanical timing check good, consider PCM or software updates as last resort and follow manufacturer procedures.

Likely causes

  • Sensor failure or oil/contamination on sensor
  • Damaged/shorted wiring or poor connector contact
  • Incorrect cam-crank correlation due to timing chain or phaser fault
  • Intermittent wiring/connector fault causing degraded signal

Fault status

⚠️ Status
PCM detected that the Camshaft Position Sensor A (Bank 1) signal is outside expected range or pattern compared to expected timing or compared with the crankshaft. This indicates a range/performance problem with the cam sensor circuit or cam/crank correlation.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

P0340 P0342 P0343 P0335 P0016 P0017
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