Error Code P0335 on Nissan Sunny: Crankshaft Position Sensor Circuit Malfunction

Nissan Sunny — a reliable car, but even it is not immune to problems with electronics. Error P0335 («Crankshaft position sensor circuit malfunction") is one of the most insidious: it can manifest itself as unstable engine operation, difficulty starting, or even complete engine failure. In this article we will look at what is hidden behind this code, how to diagnose it correctly and what to do to Sunny drove like clockwork again.

It is important to understand: P0335 on Nissan Sunny often occurs not because of the sensor itself, but because of problems with wiring, connectors or mechanical damage near the crankshaft. This error cannot be ignored - it can lead to serious engine damage, especially if it is associated with a violation of the ignition and injection synchronization.

What does error code P0335 mean on Nissan Sunny?

Code P0335 indicates problems in the circuit crankshaft position sensor (CPS). This sensor is a critical element of the engine management system. It transmits data about the position and speed of rotation of the crankshaft to ECU (electronic control unit), which calculates based on them:

• 🔥 Moment of spark supply to the cylinders
• ⛽ Accurate fuel injection timing
• 🔄 Ignition timing
• 📊 Adjustment of the operation of the variable valve mechanism (if any)

If the signal from the sensor disappears, becomes distorted or becomes unstable, ECU fixes an error P0335 and can put the engine into emergency mode. On Nissan Sunny (especially with engines GA14DE, GA16DE, QG15DE And QG18DE) this manifests itself:

• 🚗 The engine stalls while driving or does not start
• ⚡ Failures during acceleration, jerking
• 🔴 Lights up Check Engine (sometimes flashes)
• 🛑 Loss of power, “triple”

The main causes of error code P0335

On Nissan Sunny code P0335 may occur for several reasons. Let's consider them by frequency of occurrence - from the most likely to the rarest.

1. Damage to the wiring or sensor connector. Most often, the problem lies in broken wires, oxidation of contacts or chafing of insulation. The wires near the collector outlet are especially vulnerable - they overheat and break.
2. Malfunction of the DPKV sensor itself. Over time, the magnetic core of the sensor loses sensitivity, or the winding is damaged. On Sunny original sensors last 100–150 thousand km, but fakes can fail after 20 thousand km.
3. Mechanical damage near the sensor. For example, chips on the crankshaft ring gear, metal shavings or dirt getting on the sensitive element of the sensor.
4. Problems with the ECU. Less often, but it happens that the control unit itself processes the signal incorrectly (for example, due to flashing or a physical malfunction).
5. Pick-up from high-voltage wires. If the ignition wires are routed too close to the DPKV harness, they may cause interference.

Interesting fact: on Nissan Sunny with Automatic transmission error P0335 sometimes appears after changing the oil in the box, if you accidentally filled in too thick oil. This places additional stress on the crankshaft during startup, and the sensor may malfunction.

Why is P0335 often confused with P0340?

The P0340 code indicates a problem with the camshaft sensor, but the symptoms may be similar. The main difference: P0335 usually causes the engine to stop completely, while P0340 more often causes stalling and loss of power without critical consequences.

How to diagnose P0335 on a Nissan Sunny: step-by-step instructions

Before rushing to change the sensor, you need to accurately determine the cause. Here is a diagnostic algorithm that will help save time and money.

1. Visual inspection

Start by checking:

• 🔌 Sensor connector: whether there is oxidation, contamination or damaged contacts. On Sunny The connector is often located next to the oil filter - check that there is no oil getting on it.
• 🔗 Wiring: trace the harness from the sensor to ECU. Look for chafing, melting, or signs of repair (twisting instead of soldering).
• 🧲 The sensor itself: There should be no cracks, chips or signs of impacts. Check if it is securely fastened (sometimes it simply unscrews due to vibration).

2. Checking the sensor resistance

Take a multimeter and measure the resistance between the sensor terminals. For Nissan Sunny normal values:

• 500–700 Ohm for most models with GA/QG engines.
• 800–1200 Ohm for older versions (before 1995).

If resistance 0 ohm (short circuit) or ∞ (break), the sensor is faulty.

3. Checking the signal with an oscilloscope

This is the most accurate method. Connect the oscilloscope to the signal wire of the sensor (usually the middle pin) and start the engine. On a working sensor you will see a smooth “jagged” signal with an amplitude 0.5–1.5 V. If the signal:

• 📉 Too weak or disappears - there is a problem with the sensor or the gap.
• 📈 Too strong (more 2 V) - interference is possible.
• 🔄 Unstable - check the crankshaft crown for damage.

4. Checking the gap between the sensor and the ring

On Nissan Sunny optimal clearance - 0.5–1.5 mm. If it is larger, the signal will be weak; if less, the sensor may touch the crown. Check:

• 📏 Measure the gap with a feeler gauge.
• 🔧 Make sure that the sensor does not dangle in the seat.
• 🧹 Clean the crown from dirt or metal shavings (they may interfere with reading).

Table: Symptoms and Probable Causes of P0335

Symptom	Probable Cause	What to do
The engine does not start, the starter turns	Open circuit of the sensor or its complete failure	Check the wiring, check the sensor with a multimeter
The engine stalls while driving, then starts	Periodic loss of signal (poor contact, interference)	Inspect the connector, check the shielding of the wires
Dips during acceleration, jerking	Unstable sensor signal (contamination, large gap)	Clean the sensor, check the gap, inspect the ring
Check Engine lights up after rain or car wash	Moisture in the connector or cracks in the wire insulation	Dry the connector, treat the contacts with WD-40
The error appears only on “hot”	Thermal expansion of damaged wiring or sensor	Ring the chain with the engine running

How to Fix P0335: Repair and Replacement

Depending on the cause, repair methods will vary. Let's look at the most effective solutions.

1. Repair of wiring and connector

If the problem is in the wires:

• 🔧 Strip and crimp contacts in the connector. Use a special lubricant for electrical contacts (for example, Liqui Moly Electronic-Spray).
• 🔥 Replace damaged wiring sections. Do not twist the wires - only heat shrink soldering!
• 🛡️ Shield the harness, if high-voltage wires pass nearby. You can use copper braid.

2. Replacing the crankshaft position sensor

If the sensor is faulty, it must be replaced. For Nissan Sunny original sensors fit:

• 23731-4M000 (for GA14DE/GA16DE)
• 23731-5M000 (for QG15DE/QG18DE)

You can also use analogues from Bosch (article 0 261 210 115) or Denso. When replacing:

1. Disconnect the negative terminal of the battery.
2. Disconnect the sensor connector.
3. Unscrew the fastening bolt (usually on 10 mm).
4. Carefully remove the sensor without damaging the O-ring.
5. Install the new sensor, maintaining the gap 0.5–1.5 mm.

3. Eliminate mechanical problems

If the sensor is working, but the error remains:

• 🔍 Check it out crankshaft ring gear for chips or wear. If more than 2-3 teeth are damaged, the crown must be replaced.
• 🔗 Make sure that crankshaft pulley does not play - this may interfere with the sensor signal.
• 🧲 Check if there is metal shavings on the magnetic part of the sensor (it can block the signal).

What should I do if the error remains after replacing the sensor?

1. Check that the connector is connected correctly (sometimes the contacts are reversed).

2. Make sure the new sensor is compatible with your Sunny model.

3. Conduct diagnostics of the ECU - perhaps the unit is frozen and requires resetting errors or flashing it.

Common mistakes when repairing P0335

Many car owners Nissan Sunny make the same mistakes when trying to eliminate P0335. That's what can't do:

⚠️ Attention! Never use a sensor from other brands (such as Toyota or Honda), even if it looks similar. The signal may differ in amplitude or frequency, which will lead to malfunctions ECU.

• 🚫 Ignore clearance check. Even a new sensor will not work properly if the gap is larger 1.5 mm.
• 🚫 Cover damaged insulation with electrical tape. It will melt due to temperature and the problem will return.
• 🚫 Reset the error without eliminating the cause. P0335 will come back and ignoring it can cause damage ECU.
• 🚫 Buy the cheapest sensor. Fakes often fail after 1–2 thousand km.

⚠️ Attention! If after replacing the sensor the engine starts but is unstable, check timing marks. Sometimes, if the DPKV chain breaks, the timing belt can jump 1-2 teeth, which will lead to a phase imbalance.

Prevention of error P0335 on Nissan Sunny

To avoid reappearance P0335, follow these guidelines:

• 🔧 Regularly (once every 30 thousand km) check the condition of the sensor connector and wiring. Clean contacts from oxidation.
• 🛡️ Protect the wiring harness from chafing. Use corrugated or spiral wound.
• 🧹 Keep the area around the sensor clean. Metal shavings or dirt may cause false alarms.
• 🔋 When replacing the battery or removing the terminals, always reset errors scanner (for example, ELM327).
• ⛽ Use high-quality motor oil. Cheap oils can form deposits on the crankshaft crown, which interferes with signal reading.

If your Sunny frequently drives off-road or in high humidity conditions, treat the sensor connector dielectric grease (For example, CRC 2-26). This will prevent corrosion and short circuits.

FAQ: Frequently asked questions about error P0335 on Nissan Sunny

Is it possible to drive with P0335?

Short-term - possible, but not advisable. The engine will run in limp mode, resulting in increased fuel consumption, loss of power and the risk of catalytic converter damage. Long ride with P0335 may disable ECU or ignition system.

How much does a crankshaft position sensor cost on a Sunny?

Prices depend on the type of sensor and manufacturer:

• Original (Nissan) — 1500–3000 rub.
• Analogue (Bosch/Denso) — 800–1500 rub.
• Budget option (for example, Febi) — 500–900 rub.

We recommend avoiding too cheap sensors (below 500 rub.) - they often do not correspond to the signal parameters.

Could P0335 be caused by bad gas?

No, directly - it cannot. However, low-quality fuel can cause detonationwhich leads to mechanical damage to the crankshaft ring or sensor. If the error appears after refueling, also check knock sensor (code P0325).

Do I need to reset the ECU after replacing the sensor?

Yes, definitely.ECU could “remember” the malfunction and continue to operate in emergency mode. Reset errors using a scanner or by disconnecting the battery 10–15 minutes (but the second method is less reliable).

What should I do if the error returns after replacing the sensor?

This means that the problem is not with the sensor. Check:

1. Wiring from sensor to ECU (the harness may be damaged in another place).
2. ECU for correct operation (sometimes flashing is required).
3. Check the crankshaft ring gear for damage.
4. Presence of interference from high-voltage wires or a generator.

If you cannot find the cause on your own, contact a diagnostician with an oscilloscope.