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Home / DTC / P0341 — Camshaft position sensor range

P0341 — Camshaft position sensor range

Detailed page for trouble code P0341.

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P0341

MITSUBISHI P — Powertrain

Camshaft position sensor range

Brand: MITSUBISHI
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty camshaft position sensor (Hall or VR)
  • Damaged or corroded sensor connector or wiring (open, short to power/ground, high resistance)
  • Intermittent connection or poor pin contact
  • Incorrect camshaft timing (skipped/loose timing belt/chain or damaged sprocket/reluctor)
  • Damaged reluctor/camshaft tone wheel or missing teeth
  • Oil contamination or debris on sensor

Symptoms

  • Malfunction Indicator Lamp (MIL/CHECK ENGINE) illuminated
  • Engine may run rough, misfire or have unstable idle
  • Hard starting or no-start condition in some cases
  • Loss of power or poor acceleration
  • Decreased fuel economy
  • Intermittent stalling or hesitation

What to check

  • Read freeze frame and stored data with a scanner; note RPM, engine temperature and vehicle speed when fault set
  • Monitor camshaft position (CMP) and crankshaft position (CKP) PIDs in live data; compare pulse counts and correlation
  • Inspect cam sensor connector and wiring for corrosion, damage, oil contamination and secure fit
  • Back-probe signal, reference (typically 5V) and ground circuits with a multimeter
  • Measure sensor resistance if specified by service manual (or compare to known-good sensor)
  • Use an oscilloscope to view CMP waveform; check amplitude, shape and timing vs CKP waveform

Signal parameters

  • Sensor type: Hall-effect (square wave) or variable reluctance (sine-like) depending on engine — identify per engine model
  • Reference voltage: typically ~5V (verify from service manual)
  • Signal voltage: Hall ≈ 0–5V square wave; VR ≈ AC millivolts to volts dependent on speed
  • Duty/frequency: frequency increases with engine RPM; signal should produce consistent pulses and a stable relationship to CKP pulses
  • Expected behavior: regular pulses at idle, consistent waveform amplitude, and correct phase relationship to crankshaft position as RPM rises

Diagnostic algorithm

  1. Retrieve freeze-frame and full DTC list. Note when code set and any accompanying codes (misfires, CKP codes).
  2. Visual inspection: check cam sensor connector, wiring harness, and sensor mounting for oil, damage or corrosion.
  3. Scan tool: monitor CMP and CKP PIDs simultaneously. Look for loss of CMP signal or timing inconsistency relative to CKP.
  4. Electrical checks: with ignition ON, verify sensor reference voltage and ground at connector. Measure sensor resistance if applicable.
  5. Signal verification: use an oscilloscope to capture CMP waveform and compare to CKP waveform. Look for missing pulses, amplitude drop, noise, or incorrect timing.
  6. Mechanical check: if waveforms are degraded or phase is off, inspect timing belt/chain, tensioner, cam sprocket and tone wheel for skipped tooth or damage. Verify cam timing marks.
  7. Repair or replace: repair damaged wiring/connectors, clean or replace sensor, repair timing components as needed. Use OEM-specified replacement parts and torques.
  8. Clear codes and perform a road test or functional test under varying RPM/load to confirm repair. Re-scan to ensure code does not return.
  9. If fault persists after repairs, consider ECM diagnosis or reflashing per manufacturer procedure.

Likely causes

  • Sensor failure due to age or oil contamination
  • Wiring harness damage at valve cover/engine movement point
  • Connector corrosion or bent pins
  • Timing belt/chain jumped a tooth or tensioner failure
  • Reluctor/tone wheel damage from mechanical fault

Fault status

⚠️ Status
Camshaft position sensor signal out of expected range or performance; correlation with crankshaft position is incorrect.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-3.0 hours

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P0340 P0342 P0343 P0335 P0016 P0017
406

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