P0341 Code: Toyota Camry (2018-2024) - Causes, Symptoms & Fixes

Recalls/TSBs note

• No recalls found in NHTSA database
• The dataset includes one owner complaint for a different code (P0442) and does not list P0341-specific complaints

This guide focuses on P0341 (Camshaft Position Sensor A Circuit Range/Performance) for 2018–2024 Toyota Camry. It blends general, model-relevant technical guidance with the format you requested, and clearly notes data limitations from the supplied NHTSA data.

CODE MEANING AND SEVERITY

• What P0341 means on a Camry: P0341 indicates a CAMSHAFT POSITION SENSOR “A” CIRCUIT RANGE/PERFORMANCE issue (Bank 1 or single sensor depending on engine). In plain terms, the PCM is not seeing a stable, expected camshaft position signal, or the signal is outside the expected range.
• Why it matters: The camshaft position signal is used to time fuel injection and ignition. A faulty or intermittent signal can cause rough running, reduced power, misfires, stalling, or failure to start. It may be more disruptive than many generic DTCs but is not typically a single catastrophic failure; however, prolonged drivability problems can stress catalysts or lead to more expensive failures if ignored.
• Severity tier for typical Camry impact: Moderate to High (driveability problems, potential for stalling or difficult starting; potential secondary effects if misfires occur).

COMMON CAUSES ON TOYOTA CAMRY (2018–2024)

• Faulty camshaft position sensor (CMP sensor) itself
• Sensor wiring/connector problems: loose connection, corroded pins, damaged insulation, wear near engine harnesses
• Damaged or contaminated sensor connector or wiring harness routed to the CMP sensor
• Reluctor ring, tone wheel, or sensor alignment issues in the cam timing system
• Timing chain-related issues: stretched chain, worn guides/tensioner affecting cam timing signal
• Oil contamination or excessive sludge around the CMP sensor or in the sensor housing
• Intermittent electrical faults that only show up under certain RPM/engine load

SYMPTOMS

• Check Engine Light (MIL) illuminated
• Erratic idle or rough-running engine
• Power loss or hesitation under acceleration
• Possible stalling or hard starting in some cases
• Possible concurrent P0335 (Crankshaft Position Sensor) or other sensor-related codes if timing signal integrity is affected
• No obvious external damage in many cases; symptoms can be intermittent

DIAGNOSTIC STEPS

Note: Work safely; engine off when inspecting connectors. Use an appropriate scan tool to capture live data and freeze-frame information.

Step 1: Confirm and scope

• Read DTCs with a capable OBD-II scanner; note any related codes (P0340, P0342, P0335, P0010/112 etc.) and freeze-frame data.
• Check for pending codes and historical data to assess intermittency.

Step 2: Visual inspection

• Inspect camshaft position sensor housing and connector at the cylinder head/timing cover.
• Check for oil contamination, red/oil leaks, corrosion, bent pins, broken wires, or damaged insulation in the CMP sensor harness.
• Inspect the sensor mounting for proper seating and any signs of mechanical wear or misalignment.

Step 3: Electrical checks (non-destructive)

• With the ignition off, disconnect the CMP sensor connector and inspect pin cleanliness; reseat firmly.
• Perform a continuity/ground check of the CMP sensor circuit wiring from the PCM side to the sensor, looking for shorts to ground or power, and for damaged shield/wiring.
• If equipped, test the CMP sensor supply (reference voltage ~5V) and ground using the service manual specifications; ensure the sensor receives proper voltage and returns a clean ground when connected.

Step 4: Live data and waveform analysis

• Use a scope or advanced scan tool to view the CMP sensor signal while cranking and at idle/various RPMs.
• Look for a clean, periodic signal with expected waveform. A flatline, erratic pulses, or missing pulses suggest sensor or wiring fault.
• Compare to the crankshaft position sensor (P0335) live data if available; inconsistent timing signals between CMP and CKP sensors often indicate mechanical timing issues or a sensor/wiring fault affecting timing.

Step 5: Oil and contamination checks

• Check oil level and quality; very dirty or low oil can affect some sensor performance in certain designs. Clean, fresh oil is recommended if there is suspicion of contamination.
• Inspect for metal debris or sludge around the sensor area which could impair the signal.

Step 6: Mechanical timing assessment (if electrical checks are inconclusive)

• If CMP signal looks suspect but wiring tests pass, inspect timing chain tensioners, guides, and the camshaft sprocket area for wear or misalignment.
• In rare cases, cam timing could drift due to tensioner failure; this typically requires service to set timing correctly and recheck.

Step 7: Cross-check with related sensors

• Check related sensors and circuits (P0335 CKP, P0010/P0011 for VVT if present) to determine if a broader timing/Sensor issue exists.
• If multiple timing-related DTCs appear, a full timing system inspection is advisable.

Step 8: Repair decision

• If CMP sensor shows consistent fault in tests: replace CMP sensor and reseal/retorque as per service manual.
• If wiring harness or connector is damaged: repair or replace the harness/connector; ensure proper routing to avoid future wear.
• If timing components show wear or misalignment: repair timing chain components; recheck timing after replacement.
• Clear codes and perform a road test to confirm fix; re-scan after a test drive to ensure no reoccurrence.

RELATED CODES

• P0340 Camshaft Position Sensor A Circuit Malfunction (Bank 1)
• P0342 Camshaft Position Sensor A Circuit Range/Performance (Bank 1)
• P0343 Camshaft Position Sensor A Circuit Intermittent (Bank 1)
• P0335 Crankshaft Position Sensor A Circuit (Bank 1) or related CKP codes
• P0010/P0011 P0012 P0013 (Variable Valve Timing / Cam Timing related) if VVT is implicated
• P0300-P0304 (Random/MoMultiple Misfire) may appear if cam timing causes misfire
  Note: Some codes may be model/year specific; use your scanner data to correlate.

REPAIR OPTIONS AND COSTS (2025 prices)

Prices are approximate and will vary by region, dealer vs independent shop, OEM vs aftermarket parts, and labor rates.

• Camshaft position sensor replacement (parts + labor)

  • Parts: $40–$120 (aftermarket); $80–$180 (OEM/Dealer)
  • Labor: 0.5–1.5 hours
  • Estimated total: $150–$400

• Wiring harness/connector repair or replacement (if wiring is at fault)

  • Parts: $20–$200 (depends on extent and whether you replace a harness segment)
  • Labor: 1–2 hours
  • Estimated total: $150–$500

• Timing chain/tensioner/guide service (if mechanical timing issues are found)

  • Parts: $200–$900 (timing kit, tensioners, guides)
  • Labor: 4–8 hours (varies with engine variant and accessibility)
  • Estimated total: $1,000–$2,500

• Additional related repairs (oil seals, gaskets, or sensor cleaning)

  • Parts: $5–$100
  • Labor: 0.5–2 hours
  • Estimated total: $100–$600

• Tools and parts to consider for DIY reuse

  • Scan tool with live data and waveform capture is essential
  • Electrical contact cleaner, dielectric grease, multimeter/oscilloscope

DIY vs PROFESSIONAL

• DIY considerations:
  • CMP sensor replacement is generally within reach for an experienced DIYer with basic hand tools; you’ll need to locate the sensor, disconnect battery, unplug harness, unscrew sensor, and reconnect with proper torquing. Replacing the sensor is straightforward and often cost-effective.
  • Testing with an oscilloscope or live data can confirm a bad sensor, but wiring faults sometimes require more advanced diagnostics.
  • Be mindful of safety: disconnect battery before work; engine bay components can be hot; avoid damaging wiring harnesses.
• When to go pro:
  • If timing chain/tensioner/guide work is suspected.
  • If wiring harness damage is not obvious or if you lack proper diagnostic equipment.
  • If the vehicle has intermittent symptoms that are hard to reproduce or you’re unable to verify the CMP signal with a scope.
  • If you see multiple timing-related DTCs (P034x with CKP or VVT codes), indicating a more extensive timing issue.

PREVENTION

• Regular maintenance: follow Toyota’s recommended oil change intervals and use the specified oil grade (Camry engines commonly use 0W-20, but confirm for your exact engine variant and model year).
• Use quality oil and keep oil levels within spec; poor oil quality or low oil can affect sensor performance indirectly, especially in the VVT system.
• Maintain clean electrical connections: inspect CMP sensor connector for corrosion or loose pins; apply dielectric grease as appropriate on reconnect.
• Avoid prolonged exposure to contaminants: keep the engine bay clean and address oil leaks promptly to prevent sensor contamination.
• Drive cycles that include varying RPMs and moderate loads can help keep the timing system and sensors functioning well; avoid extended idle situations if possible.

Important data note

• The provided NHTSA data lists no CAMRY P0341 recalls or TSBS and includes one P0442 complaint only. The guide above is based on standard, model-relevant diagnostic practice for P0341 and does not imply additional official recalls beyond what the data shows.

If you want, I can tailor this further to your specific Camry variant (engine size, VIN suffix, transmission type) or help you draft a checklist for a shop visit.