Fault code P0345 on cars Nissan - one of the most common errors associated with the engine management system. It signals problems in the circuit camshaft position (CMP) sensor, which is responsible for synchronizing the operation of fuel injectors and the ignition system. If your Qashqai, X-Trail or Juke suddenly began to twitch at idle, lose power, or stalled altogether - with an 85% probability, this sensor or its wiring is to blame.
Unlike the error P0340 (general sensor failure), code P0345 points specifically to Malfunction in the camshaft sensor signal circuit - this could be either a wire break or damage to the sensor or connector itself. In 30% of cases, the problem is solved by simply cleaning the contacts, but sometimes it is necessary to replace the sensor or even diagnose the ECU. In this article we will analyze all possible reasons, methods of checking with a multimeter and repair nuances for different models Nissan with engines HR16DE, MR20DD, QR25DE and others.
What does P0345 mean on Nissan?
Code P0345 stands for "Camshaft Position Sensor (Bank 1) Circuit Malfunction". In the system Nissan this sensor (aka CMP sensor) is mounted on the cylinder head and senses the camshaft position for precise fuel injection and ignition. If the ECU stops receiving the correct signal, the engine goes into emergency mode with fixed advance angles, which leads to:
- 🔴 Misfire (especially when cold)
- 🔴 Floating revolutions at idle speed (500–1200 rpm)
- 🔴 Loss of power when accelerating (as if it’s “stupid”)
- 🔴 Difficulty starting (the starter turns, but the engine does not catch)
- 🔴 Increased fuel consumption (by 10–15%)
On some models (for example, Nissan Almera N16 or Primera P12) error P0345 may be accompanied by code P0300 (multiple misfires) or P0135 (heating of the oxygen sensor). This is due to the fact that the ECU, not receiving data on the camshaft position, begins to erroneously adjust the fuel mixture.
- Qashqai (J10/J11)
- X-Trail (T31/T32)
- Juke
- Almera (N16/G15)
- Other model
Reasons for error P0345
In 60% of cases, the camshaft sensor itself is to blame, but there are other pitfalls. Here is a complete list of possible causes, ranked by frequency of occurrence:
| Reason | Frequency (%) | Symptoms |
|---|---|---|
| CMP sensor malfunction | 45% | The error appears constantly, the engine troits |
| Broken or shorted wiring | 25% | The error is floating (it appears and then disappears) |
| Oxidation of connector contacts | 15% | Problems after rain or washing |
| Damage to the camshaft toothed disc | 10% | Error + metallic knock from under the valve cover |
| ECU firmware failure | 5% | Error after flashing or disconnecting the battery |
Sensors on engines are especially vulnerable HR16DE (for example, in Nissan Juke or Note) - their design involves a close location to the collector outlet, which is why the plastic housing of the sensor melts over time. On motors VQ35DE (for example, in Nissan X-Trail T31) wiring is more likely to suffer due to vibrations.
⚠️ Attention: If the error P0345 appears along with P0011 (“Camshaft phase shift”), the problem may be phase shifter or its solenoid. In this case, the CMP sensor is often faulty!
How to check the camshaft sensor on a Nissan
Sensor diagnostics CMP does not require complex equipment - just a multimeter and a screwdriver. Below are step-by-step instructions for most models Nissan (exception - engines with a system VVEL, there is a different algorithm).
Disconnect the negative battery terminal
Remove the decorative engine cover (if equipped)
Locate the camshaft sensor (usually near cylinder 1)
Clean the sensor body and connector from dirt
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Step 1: Check the sensor resistance
Disconnect the connector from the sensor and measure the resistance between its contacts. Normal values for most sensors Nissan:
- 🔹 Bosch (installed on Qashqai J10):
500–700 Ohm - 🔹 Denso (for example, on X-Trail T32):
800–1200 Ohm - 🔹 Hitachi (old models):
300–500 Ohm
If resistance 0 ohm (short circuit) or ∞ (break) - the sensor must be replaced.
Step 2: Check the supply voltage
Turn on the ignition (but do not start the engine) and measure the voltage between +12V (usually red or orange wire) and mass (black or brown). Must be 11.5–12.5 V. If there is no voltage, the problem is in the wiring or the ECU.
Step 3: Check the signal wire
Connect the multimeter leads to the signal wire (usually the middle pin) and ground. When the engine is rotated by the starter, the voltage should fluctuate in the range 0.1–5 V. Absence of oscillations indicates a sensor malfunction or damage to the camshaft toothed disc.
On engines QR25DE (for example, in Nissan Teana J32) CMP sensor is often confused with a phase sensor. In order not to be mistaken, be guided by the marking: CMP usually has the mark “EX” or “EXH” (from the English exhaust - release).
Where is the camshaft sensor located on popular Nissan models?
The location of the sensor depends on the engine type and model. Below are diagrams for the most common cars:
- 📍 Nissan Qashqai J10/J11 (
HR16DE/MR20DD): on the back of the cylinder head, next to the 1st cylinder. Access from above, but on J11 The intake manifold may be in the way. - 📍 Nissan X-Trail T31/T32 (
MR20DE/QR25DE): at the end of the head from the exhaust manifold side. On T32 you will have to remove the decorative cover. - 📍 Nissan Juke (
HR16DE): in front of the head, under the ignition coils. Easily accessible after removing the plastic casing. - 📍 Nissan Almera G15 (
HR16DE): similar Juke, but the connector is directed towards the windshield. - 📍 Nissan Pathfinder R51 (
VQ40DE): on the left (in the direction of travel) camshaft, under the intake manifold. Difficult access - requires removal of the throttle.
On engines with variable valve timing system (CVTC or VVEL) two sensors can be installed: one for the intake camshaft, the other for the exhaust camshaft. In this case the error P0345 usually refers to inlet sensor.
How to distinguish a camshaft sensor from a crankshaft sensor?
The camshaft sensor (CMP) is always located on the cylinder head and has 3 wires (power, ground, signal). The crankshaft sensor (CKP) is located on the engine block (usually near the pulley) and has 2 wires. In addition, CMP operates on the camshaft toothed disc, and CKP operates on the flywheel ring teeth.
Replacing the camshaft sensor: step-by-step instructions
If the diagnostics confirm that the sensor is faulty, it must be replaced. The cost of the original sensor for Nissan — from 2500 to 6000 rubles (depending on the model). Analogues from Bosch or Denso will cost 1500–3000 rubles. To replace you will need:
- 🔧 10 mm socket wrench
- 🔧 Flat blade screwdriver
- 🔧 Dielectric grease (e.g. Liqui Moly Silicon-Fett)
- 🔧 New sensor (original article number usually starts with
23731-)
Step-by-step algorithm:
- Disconnect the negative terminal of the battery.
- Disconnect the sensor connector by pressing the latch.
- Unscrew the sensor mounting bolt (usually one, rarely two).
- Carefully remove the sensor by rocking it from side to side (do not pull on the wires!).
- Clean the seat from oil and dirt.
- Install the new sensor, making sure the O-ring is in place.
- Tighten the bolt to a torque
8–10 Nm(do not overtighten!). - Connect the connector and return the battery terminal.
⚠️ Attention: On engines VQ35DE (for example, in Nissan Murano Z51) After replacing the sensor, it may be necessary to reset the throttle adaptations through the diagnostic scanner. Without this, the engine will operate unstably for the first 10–15 minutes.
After replacing the sensor, the P0345 error may remain in the ECU memory. To reset it, disconnect the battery for 10 minutes or use a diagnostic scanner (for example, Launch X431).
Common repair mistakes and how to avoid them
Many car owners Nissan encounter the error reappearing P0345 after replacing the sensor. Here are common mistakes and how to prevent them:
- 🚫 Using a non-original sensor low quality (for example, no-name from AliExpress). Such sensors often fail after 1–2 months. Solution: buy sensors with a part number that matches your model (check ETKA or Nissanservice.info).
- 🚫 Damage to the O-ring during installation. This leads to oil leakage and repeated failure of the sensor. Solution: Always check the integrity of the ring and lubricate it before installation.
- 🚫 Untested wiring. If the problem was a broken wire and not a sensor, replacing it will not help. Solution: “ring” all three sensor wires for breaks or short circuits.
- 🚫 Ignoring the condition of the gear disk. If the disk is damaged or dirty, the new sensor will produce false signals. Solution: inspect the disc through the sensor hole - it should be clean and without chips.
On engines MR20DD (for example, in Nissan Qashqai J11) after replacing the sensor it is sometimes necessary ECU flashing, if the error was accompanied by a code U1000 (loss of connection with the unit). In this case, you cannot do without visiting the service.
Cost of repairs in the service vs self-repair
Prices for diagnosing and replacing the camshaft sensor in services vary depending on the region and car model. Below are the average prices for Moscow and the regions:
| Service | Moscow (₽) | Regions (₽) | On your own (₽) |
|---|---|---|---|
| Diagnostics (read errors) | 1000–1500 | 500–1000 | 0 (if there is a scanner) |
| Replacing the CMP sensor | 2000–3500 | 1200–2000 | 0 (with tool present) |
| Original sensor | 3500–6000 | 3000–5500 | 2500–4000 (online) |
| Analogue (Bosch/Denso) | 2000–3000 | 1500–2500 | 1200–2000 |
| Total (with work) | 6500–11000 | 5000–8500 | 2500–4000 |
Do-it-yourself repairs are beneficial if you have experience working with automotive electrical systems. However, on some models (for example, Nissan Patrol Y62 with engine VK56VD) access to the sensor is extremely difficult - you will need to remove the intake manifold, which is difficult to do in a garage environment.
If you decide to change the sensor yourself, take a photo of the location of the connector and mounting bolt before removing it. On some models (for example, Nissan Navara D40) the sensor is installed at an angle, and incorrect installation will lead to its rapid failure.
FAQ: Frequently asked questions about error code P0345 on Nissan
Is it possible to drive with P0345?
Technically possible, but not recommended. The engine will operate in emergency mode with fixed ignition angles, which will lead to:
- 🔸 Increased fuel consumption (up to +20%)
- 🔸 Accelerated wear of the catalyst
- 🔸 Risk of valve damage (on motors with a variable phase system)
If the error appears for the first time, you can drive to your home or service center, but constantly operate the car with P0345 it is impossible.
Why does P0345 only appear when it is cold?
This is a typical sign unstable contact in the sensor connector or cracks in the wiring. When heated, the metal expands and contact is temporarily restored. Check:
- 🔹 Condition of contacts in the connector (oxidation, contamination)
- 🔹 Integrity of wire insulation (especially towards the collector outlet)
- 🔹 Fixing the connector (sometimes it comes off due to vibrations)
Which CMP sensors are suitable for Nissan Qashqai J11 (HR16DE)?
Original article: 23731-4M510. Suitable analogues:
- 🔹 Bosch
0 261 210 115 - 🔹 Denso
5503001000 - 🔹 Febi
23731
Important: sensors for Qashqai J10 (with engine MR20DE) do not fit!
Could P0345 be caused by bad gasoline?
No, fuel does not directly affect the operation of the camshaft sensor. However contaminated gasoline may cause:
- 🔸 Clogged injectors → misfires → false positives P0345 (rarely)
- 🔸 Damage to the catalyst → increased back pressure → vibrations affecting the sensor
If the error appears after refueling, first check the sensor and wiring - most likely it is a coincidence.
Do I need to reset adaptations after replacing the sensor?
On most models Nissan (except for engines with VVEL) reset of adaptations is not required. However, if after replacement:
- 🔸 Engine runs unevenly
- 🔸 Speed "floats" at idle
- 🔸 An error appears P0507 (high revs XX)
Then you need to reset the throttle adaptation via a diagnostic scanner or by disconnecting the battery for 10+ minutes.