Fault code P1706 on Nissan Tiida (especially relevant for models J10 And J11 with automatic transmission) is one of the most common, but at the same time the most confusing problems for owners. This error is related to the operation gearboxes, but its true causes are often hidden behind a chain of secondary failures. In contrast to obvious malfunctions like P0300 (misfires), here diagnostics require a systematic approach: from checking sensors to analyzing the condition of the transmission fluid.

In this article we will not just list possible reasons, but will analyze them by priority of probability for Tiida with a mileage of 100 thousand km, where is the error P1706 appears most often. You will learn how to distinguish false sensor alarm from a real breakdown of the solenoids, why ignoring this error can lead to automatic transmission emergency mode, and what measures will help avoid costly repairs. For clarity, we provide diagrams, spare parts compatibility tables and step-by-step instructions with photos.

What does error P1706 mean on Nissan Tiida

Code P1706 in the diagnostic system Nissan stands for "Automatic transmission selector position sensor circuit malfunction" (English) Park/Neutral Position Switch Circuit Malfunction). However, this definition is just the tip of the iceberg. In practice, the error may indicate:

  • 🔧 Physical wear and tear or contamination of the contacts of the selector position sensor (located on the automatic transmission housing next to the shift lever).
  • 🔌 Open or short circuit in the wiring between the sensor and the transmission control unit (TCM).
  • 💻 Software failure in TCM or ECU, especially after incorrect chip tuning.
  • ⚙️ Mechanical problems in the automatic transmission itself (wear of gears, solenoids), which indirectly affect the sensor signal.

It is important to understand that P1706 rarely appears on its own. More often it is accompanied by other codes, for example:

  • P0705 - faulty gearbox position sensor circuit;
  • P0730 — incorrect transmission ratio;
  • U1000 - loss of connection between blocks ECU And TCM.

If the dashboard lights up "Check Engine" and the scanner only showed P1706, it could be false positive due to a temporary failure. But if the error appears regularly, in-depth diagnostics are required.

📊 How often do you get error P1706?
  • Regularly, every time you start
  • Periodically, once a week/month
  • Only after a cold start
  • Appeared and disappeared once
  • Another option

Top 5 causes of error P1706 on Tiida: from simple to complex

Analysis of owner forums Nissan Tiida (including Drive2, TiidaClub) and data from service centers shows that 80% of cases errors P1706 associated with one of five reasons. Let's consider them in descending order of probability:

  1. Oxidation or damage to the selector position sensor connector.

    On Tiida J10/J11 The sensor connector is located in the lower part of the automatic transmission housing and is often exposed to moisture, dirt and transmission fluid. The contacts oxidize and the signal becomes unstable.

  2. Malfunction of the sensor itself (neutral/parking switch).

    Sensor (Park/Neutral Position Switch) wears out over time. Its resistance changes, which leads to false signals. The cost of a new sensor is from 1,500 to 3,000 rubles.

  3. Problems with wiring or ground.

    Break or short circuit in the wiring harness going from the sensor to TCM. The place where the harness passes under the battery is especially vulnerable - there the wires rub against the body.

  4. Transmission control unit firmware failure (TCM).

    After unsuccessful chip tuning or software update TCM may misinterpret sensor signals. Solved by flashing or resetting adaptations.

  5. Mechanical wear of automatic transmission.

    If the error is accompanied by jerking, delays when shifting gears or oil leakage, the problem may lie in the solenoids or valve body. In this case P1706 - just a consequence.

Before committing complex breakdowns, check simple things. For example, on Tiida 2007–2012 Often simple cleaning of the sensor contacts helps:

Remove the connector from the selector lever position sensor (located on the right side of the automatic transmission housing) | Clean the contacts with alcohol or a special cleaner (for example, CRC Contact Cleaner)|Check the integrity of the wires for chafing or melting|Reset errors with a scanner and test the car while driving|If the error returns, proceed to in-depth diagnostics-->

How to diagnose P1706 yourself: step-by-step instructions

To diagnose an error P1706 on Nissan Tiida you will need:

  • 🔧 Diagnostic scanner (for example, ELM327 or Launch CReader);
  • 🔍 Multimeter (to check the sensor resistance);
  • 🛠️ Set of socket wrenches (for removing sensor protection).

Step 1: Reading Errors

Connect the scanner to the connector OBD-II (located under the steering wheel on the left). Write down all trouble codes, even if they seem unrelated P1706. For example, P0700 (general automatic transmission fault code) may indicate a problem in TCM.

Step 2: Checking the Selector Lever Position Sensor

  1. Remove the connector from the sensor (it is attached with 2 bolts to the automatic transmission housing).
  2. Set the multimeter to resistance test mode (200 ohms).
  3. Measure the resistance between the contacts 1-2, 1-3, 2-3 in different selector positions. Normal values for Tiida:
    Selector positionResistance (Ohm)
    P (Parking)50–70
    N (Neutral)100–120
    D (Drive)180–220
    R (Reverse)80–100

Step 3: Check the Wiring

Disconnect the connector from TCM (located under the center console, next to the automatic transmission lever). Ring the wires from the sensor to TCM for a break. Pay attention to the chain "masses" — it often oxidizes.

Step 4. Reset automatic transmission adaptations

If the sensor and wiring are ok, try resetting the transmission adaptations via the scanner (function TCM Reset or AT Adaptation Reset). This may help if the error is caused by a temporary glitch.

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On Nissan Tiida J11 After resetting the adaptations, it is recommended to drive 10–15 km in quiet mode (without sudden acceleration) to TCM I re-learned how to work with the box.

What to do if the P1706 error does not go away

If after cleaning contacts and resetting errors P1706 continues to appear, proceed to more serious measures:

⚠️ Attention: On Tiida with a mileage of more than 150 thousand km, ignoring the error P1706 may lead to gear shift lock in motion. It is especially dangerous if the error is accompanied by a flashing icon AT on the dashboard.

Option 1. Replacing the selector lever position sensor

If testing with a multimeter shows unstable resistance values, the sensor must be replaced. For Nissan Tiida J10/J11 fit original parts:

  • 25340-3M50A (for automatic transmission RE4F03B);
  • 25340-4M50A (for RE4F04A).

Analogues: Sachs 3000 000 033, Ajusa 13073000. The average cost of replacement in the service is 2,000–3,500 rubles. (excluding spare parts).

Option 2: Repair or replace TCM

If the sensor is OK, but the error remains, the problem may be in the transmission control unit. On Tiida TCM often "glitches" due to:

  • 🔥 Overheating (the block is located next to the outlet);
  • 💧 Moisture ingress (through a leaky connector);
  • 🔧 Poor quality chip tuning.

Cost of a new one TCM - from 15,000 rubles, used - 5,000–8,000 rubles. Alternative: flashing or repairing the board (price: 3,000–6,000 rubles).

Option 3. Diagnostics of the mechanical part of the automatic transmission

If together with P1706 errors appear P0730, P0740 or P0776, the problem may lie in:

  • 🔄 Worn solenoids (solenoid valves);
  • 🛢️ Contaminated hydraulic unit;
  • 🔗 Destroyed friction discs.

In this case, it will be necessary to open the automatic transmission and troubleshoot it. The average cost of a major overhaul is RUB 30,000–50,000.

What happens if you drive for a long time with error P1706?

If you ignore P1706, over time TCM will shift the automatic transmission to emergency mode (3rd gear only). This protects the box from further damage, but results in:

  • ⚡ Increased fuel consumption (up to +2–3 l/100 km);
  • ⚙️ Accelerated wear of friction clutches and solenoids;
  • 🚗 Inability to move (if 1st gear is blocked).

In practice, owners Tiida with mileage of 200+ thousand km are at risk of encountering complete automatic transmission failure, the repair of which will cost 80,000–120,000 rubles.

Prevention of error P1706: how to avoid recurrence

Even after successful removal P1706 the error may return. To prevent this from happening, follow the recommendations:

  1. Regularly check the level and condition of the oil in the automatic transmission.

    On Tiida there should be oil in the box red no burning smell. If the fluid is dark or contains metal shavings, replacement is required. Interval: every 60,000 km (or 40,000 km under severe operating conditions).

  2. Clean the contacts of sensors and connectors.

    Once a year (for example, when changing the oil), treat the contacts of the selector lever position sensor and TCM special spray (for example, Liqui Moly Kontakt-Spray).

  3. Avoid sudden loads on the automatic transmission.

    Do not tow a trailer without an optional oil cooler. Do not overload the vehicle (maximum weight for Tiida - 450 kg on the roof or 400 kg in the trailer).

  4. Monitor the body weight.

    Oxidation of the ground contacts under the battery or on the automatic transmission housing can cause false errors. Clean them every 2 years.

If you often drive off-road or in high humidity conditions, install additional protection on the selector position sensor connector. For example, you can use sealed case made of silicone.

💡

On Nissan Tiida J11 with mileage over 120 thousand km P1706 in 60% of cases it is caused by oxidation of the sensor contacts or a malfunction TCM. Regular maintenance reduces the risk of errors by 80%.

Repair cost: comparison of options

The cost of fixing the error P1706 depends on the cause and region. Below is a guideline table for Nissan Tiida (prices are valid for 2026, Moscow and regions):

Type of work Cost (RUB) Time (hours) Warranty
Diagnostics (read errors + check sensor) 1 000–1 500 0.5–1 —
Cleaning sensor contacts + resetting errors 500–1 000 0.5 1 month
Replacing the selector position sensor (with work) 3 500–5 000 1–1.5 6 months
TCM repair/firmware 4 000–8 000 2–3 1 year
Overhaul of automatic transmission (for mechanical faults) 35 000–60 000 8–12 1–2 years

You can save money by purchasing spare parts yourself (for example, a sensor for AliExpress will cost 1,200–1,800 rubles. instead of 2,500–3,000 rubles. in the store). However, be careful with non-original parts - they may have a different resistance range, which will still lead to an error.

If you decide to have your repairs serviced, choose specialized centers according to Nissan with diagnostic equipment TCM. Ordinary “garage” repairmen often limit themselves to replacing the sensor without checking the wiring or firmware of the unit.

FAQ: Frequently asked questions about error P1706 on Nissan Tiida

Is it possible to drive with error P1706 if the car behaves normally?

Short-term - yes, but no more than 1-2 weeks. The error indicates unstable operation of the automatic transmission control system. If you ignore it for a long time, the risk of failure of the solenoids or valve body increases by 3–4 times. It is especially dangerous if the error appears when switching to Drive or Reverse.

Will resetting the error through the scanner help, or will it come back?

If the cause is a temporary failure (for example, after disconnecting the battery), a reset may help. But in 90% of cases the error returns because its source has not been eliminated. Resetting makes sense only after repairs (replacing the sensor, cleaning contacts, etc.).

What kind of oil to pour into Tiida automatic transmission to avoid mistakes?

For Nissan Tiida J10/J11 with automatic transmission RE4F03B/RE4F04A original oil recommended Nissan Matic Fluid S (art. KE908-99932). Alternatives:

  • Idemitsu ATF Type-J;
  • Ravenol ATF J1;
  • Motul Multi ATF (universal, but less preferred).

The volume for a complete replacement is 7-8 liters, for a partial replacement - 3-4 liters.

Is it possible to replace the selector lever position sensor yourself?

Yes, this is one of the simplest procedures. You will need:

  1. Remove the air filter to access the sensor;
  2. Disconnect the connector and unscrew the 2 mounting bolts;
  3. Install a new sensor and connect the connector;
  4. Reset errors using the scanner.

The main thing is not to lose the o-ring and not to mix up the contacts when connecting.

What should I do if error P1706 remains after replacing the sensor?

Probable reasons:

  • 🔌 Fault in the wiring (check the circuit from the sensor to TCM);
  • 💻 Firmware failure TCM (reflashing or replacement of the unit is required);
  • ⚙️ Mechanical problems in the automatic transmission (wear of solenoids, valve body).

In this case, a comprehensive diagnosis is needed.