P0335 Nissan: What the Code Means
The P0335 code on a Nissan indicates a malfunction in the crankshaft position sensor circuit. The engine control module, or ECM, relies on this sensor to determine crankshaft speed and position. Without a clean signal, the ECM cannot time fuel injection or ignition correctly. On Nissan vehicles, this code is a common reason for a no-start condition or rough running, and it should be addressed promptly to avoid further drivability issues.
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Symptoms of a P0335 Code on Nissan
- Engine cranks but does not start
- Stalling at idle or while driving
- Rough idle or misfires
- Illuminated check engine light
- Reduced fuel economy
- Difficulty starting when the engine is warm
These symptoms appear because the ECM is guessing crankshaft position rather than receiving a precise signal. In some Nissan models, the car may start intermittently, which makes the problem harder to diagnose in a shop if the technician cannot reproduce it.
Common Causes for P0335 in Nissan Vehicles
Several components can trigger P0335, and narrowing them down requires systematic testing.
- Faulty crankshaft position sensor — The sensor itself fails, often due to heat degradation or internal wear.
- Damaged wiring or connectors — Corrosion, chafing, or a broken wire in the sensor harness is a frequent culprit on older Nissans.
- Reluctor ring damage — The toothed ring on the crankshaft or harmonic balancer can have missing teeth or debris, distorting the signal.
- ECM fault — Rare, but a failing ECM can misinterpret the sensor signal.
- Timing belt or chain issues — A jumped timing component can alter the relationship between the crankshaft and camshaft sensors.
Diagnostic Steps for Technicians
A proper diagnosis on a Nissan starts with confirming the code with a scan tool and checking for additional codes that may point to a root cause.
On many Nissan models, the crankshaft position sensor is located near the crank pulley or behind the timing cover. Access varies by engine, so consult the specific service manual for the model and year.
Repair Options and Cost Estimates
Repair cost depends on the root cause. The sensor itself is relatively inexpensive, but labor can vary.
| Repair | Typical Part Cost | Labor Range | Notes |
|---|---|---|---|
| Crankshaft position sensor replacement | $30 to $120 | 1 to 3 hours | Common fix; access may be tight on some engines |
| Wiring harness repair | $15 to $60 | 1 to 2 hours | Depends on location of damage |
| Reluctor ring replacement | $50 to $200 | 2 to 5 hours | Often requires removal of harmonic balancer or transmission |
| ECM replacement | $400 to $1,200 | 1 to 2 hours | Least common cause; reprogramming may be needed |
Can You Drive With a P0335 Code?
Driving with a P0335 code is risky. The engine may stall unexpectedly, and a no-start condition can leave you stranded. If the code appears alongside drivability symptoms, limit driving and have the vehicle towed to a shop. If the check engine light is the only symptom, short, careful driving to a repair facility may be possible, but the underlying issue will likely worsen.
Prevention Tips for Nissan Owners
Regular maintenance helps avoid P0335 and related codes. Keep the engine bay clean to reduce corrosion on connectors. Address any oil leaks promptly, as sensor contamination from oil can cause premature failure. On higher-mileage Nissans, inspect the crankshaft sensor harness during routine services, especially if the vehicle has high heat exposure or rough-running history.