Fault code P1715 on Nissan Murano - one of the most common problems associated with the operation of an automatic transmission. This signal is from ECU (electronic control unit) indicates a discrepancy between the actual operation of the transmission and the expected parameters. Owners often encounter this code after 100-150 thousand kilometers, but it can appear earlier - especially with an aggressive driving style or untimely maintenance.

Unlike universal errors like P0300 (misfires), P1715 is transmission specific and requires an integrated approach. Its appearance is accompanied by jerks when changing gears, a delay in response to the gas pedal, or even the transmission going into “emergency mode.” In this article we will analyze Unique P1715 diagnostic features specifically for Murano (including Z50, Z51 and Z52 models), since the transmission algorithms here are different from other Nissan crossovers.

What does error P1715 mean on Nissan Murano

Code P1715 stands for "Input/Turbine Speed Sensor Circuit Malfunction" — malfunction of the input shaft speed sensor circuit (turbine sensor). This sensor, located inside the transmission, monitors the rotational speed of the input shaft from the engine and transmits the data to TCM (Transmission Control Module). If the signal is missing, distorted or does not correspond to the indicators of other sensors (for example, the output shaft speed sensor), the control unit records an error.

On Murano with transmission RE0F10A (installed on models before 2015) or JK0 (after 2015) P1715 often accompanied by additional codes:

  • 🔧 P0730 — incorrect transmission ratio;
  • ⚡ P0715 — malfunction of the input shaft speed sensor (duplicates P1715, but with a different priority);
  • ⚠️ P0700 - general transmission malfunction (requires scanning TCM).

Feature Murano The problem is that the error may appear sporadically - for example, only during a cold start or after a long drive at high speeds. This complicates diagnosis, since the temporary disappearance of the code does not mean that the problem has been eliminated.

⚠️ Attention: If the dashboard lights up Check Engine along with the indicator "AT" (automatic transmission), further operation of the vehicle without diagnostics may lead to failure of clutches or valve body. In this case, repairs will cost 3–5 times more than timely replacement of the sensor.

The main reasons for the appearance of P1715

Reasons for the error P1715 on Nissan Murano are divided into three categories: mechanical, electrical and software. Let's consider them taking into account the design features of the model.

1. Malfunction of the input shaft speed sensor

  • 🛠️ Physical wear and tear — over time, the magnetic rotor of the sensor becomes covered with metal shavings, which distorts the signal;
  • 🔌 Oxidation of contacts - on Murano first generation (Z50) the sensor connector is located at the bottom of the box, where moisture accumulates;
  • 💥 Mechanical damage — during unqualified transmission repairs, the sensor can be touched by a tool.

2. Problems with wiring or connectors

Wires from sensor to TCM run along the gearbox and often rub against brackets or cooling system pipes. On Murano Z51 (2008–2014) typical problem - breakage yellow wire (signal) in the harness near the right side member.

3. Malfunction of the transmission control module (TCM)

TCM on Murano sensitive to voltage changes. If the battery was discharged to zero or electrical work was carried out without disconnecting the terminals, the unit may begin to generate false errors. Helps in 20% of cases flashing or reset adaptations.

4. Mechanical transmission problems

  • 🔄 Friction wear — leads to slippage and mismatch of speeds;
  • 🛢️ Contaminated ATF oil — metal shavings block the valve body valves;
  • ⚙️ Damage to the planetary gear set - rare, but occurs on runs over 200 thousand km.
📊 What transmission does your Nissan Murano have?
  • RE0F10A (until 2015)
  • JK0 (after 2015)
  • I don't know
  • Other

How to Diagnose P1715: Step-by-Step Instructions

Diagnosis of the error P1715 requires a systematic approach. Start with the simplest checks and gradually move on to complex ones. Below is an algorithm adapted for Nissan Murano.

Step 1: Count all errors

Use a scanner that supports the protocol OBD-II with advanced features for the transmission (e.g. Launch X431 or Autel MaxiCOM). Pay attention to the accompanying codes - they will help narrow your search. If except P1715 There is P0720 (faulty output shaft speed sensor), the problem is most likely in the wiring.

Step 2: Check Input Shaft Speed Sensor

The sensor is located on the driver's side of the transmission housing. To get to it:

  1. Remove the air filter and pipe;
  2. Disconnect the sensor connector (the lock must be pressed up);
  3. Check the resistance between pins 1 and 2 - it should be within 200–500 Ohm (for Murano Z50/Z51).

Visual inspection for damage|

Checking resistance with a multimeter|

Cleaning connector contacts with alcohol|

Checking the supply voltage (12V between pins 1 and 3) -->

Step 3: Inspect the Wiring

Ring the wires from the sensor to TCM (located under the center console). Please note:

  • 🔍 Insulation integrity - especially in places of inflection;
  • 🔌 Oxidation of contacts in connectors TCM (pins 24 and 25);
  • 📉 Short circuit to ground (checked with a multimeter in diode testing mode).

Step 4: Check ATF level and condition

On Murano there should be oil in the box red no burning smell. If the fluid is dark or contains metal particles, replacement and flushing of the valve body is required. The level is checked on a warm box (oil temperature 50–60°C) through the inspection hole.

💡

On Nissan Murano Z52 (2015+) to check the oil level in the automatic transmission, use a diagnostic scanner - there is no traditional dipstick!

Step 5: Test drive with parameter monitoring

Connect the scanner in real time and monitor the indicators:

  • Input Shaft Speed (RPM) - must correspond to engine speed taking into account the gear ratio;
  • Output Shaft Speed (RPM) — when driving in 4th gear at a speed of 60 km/h it should be ~1500 rpm;
  • Transmission Fluid Temperature - if the temperature exceeds 120°C, the box is overheating.

How to fix error P1715: from simple to complex

The solution to the problem depends on the diagnostic results. Below are elimination methods ranked by complexity and cost.

1. Replacing the input shaft speed sensor

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

  • 🔧 28540-31X00 — for models up to 2010;
  • 🔧 28540-JK00A - for Murano with transmission JK0 (2015+).

The cost of the original is ~5–8 thousand rubles, analogues (for example, Febi or Meyle) — ~3–4 thousand rubles. Replacement takes 1–2 hours.

2. Wiring repair

If the problem is an open or short circuit, restore the circuit:

  • 🔌 Strip and tin damaged wires;
  • 🛠️ Replace the harness section (use heat shrink tubing for insulation);
  • 🔧 Check the reliability of the “mass” TCM (contact on the body under the center console).

3. Reset transmission adaptations

After replacing the sensor or repairing the wiring, you need to reset the adaptive settings of the box. To do this:

  1. Connect a scanner that supports features Nissan;
  2. Select menu Transmission → Adaptations Reset;
  3. Perform the training procedure (requires warming up the box to 50–70°C).

4. Changing ATF oil and filter

If the oil is contaminated, perform a complete change with flushing:

  • 🛢️ Oil volume for RE0F10A — 9.5 l, for JK0 — 8.2 l;
  • 🔧 Filter: original 31726-31X00 or equivalent Mann W914/2;
  • ⚠️ Use only Nissan Matic-S or Idemitsu Type-M — other oils can cause friction clutches to slip.

5. Repair or replace TCM

If the control unit is faulty, it can be:

  • 🔧 Reflash (cost ~3-5 thousand rubles);
  • 🛠️ Repair (replacement of capacitors or microcircuits - ~8-12 thousand rubles);
  • 🆕 Replace with a new one (original ~30–40 thousand rubles, used ~15–20 thousand rubles).
What happens if you ignore P1715?

Driving for a long time with this error leads to:

- Accelerated wear of friction discs (repair of valve body ~50–70 thousand rubles);

- Overheating of the oil and jamming of the torque converter valves;

- Breakdown of the planetary gear (gearbox overhaul ~150–200 thousand rubles).

On Murano with a mileage of >150 thousand km, ignoring P1715 in 80% of cases ends in a major overhaul of the automatic transmission.

Preventing error P1715 on Nissan Murano

Prevent occurrence P1715 easier than eliminating its consequences. Follow these guidelines:

1. Regular transmission maintenance

  • 📅 Change the oil every 60 thousand km (despite the official 90 thousand km for JK0);
  • 🔧 Rinse the tray and magnets with each replacement;
  • 🛢️ Use only original oil Nissan Matic-S.

2. Electrical control

  • 🔋 Monitor the voltage of the on-board network (it should be 13.8–14.4V with the engine running);
  • 🔌 Clean your contacts TCM and sensors once every 2 years;
  • ⚡ Avoid “lighting” from other cars - voltage surges harm electronics.

3. Careful operation

  • 🚗 Avoid sudden starts and braking;
  • 🔄 Do not switch the automatic transmission selector “on the go”;
  • ❄️ Warm up the box in winter before driving (let it run for 2-3 minutes P or N).
💡

On Nissan Murano Z52 (2015+) error P1715 often occurs after firmware update TCM through a dealer scanner. If the code appears after visiting the service, request a rollback to the previous version of the software!

Comparison of methods for eliminating P1715: which is cheaper and more effective

Elimination method Cost (RUB) Time (hours) Efficiency (%) Applicability
Replacing the speed sensor 3 000–8 000 1–2 85 If the sensor is faulty
Wiring repair 1 000–3 000 2–3 90 In case of a break or short circuit
Changing ATF oil 5 000–10 000 1–1,5 70 If the oil is contaminated
TCM flashing 3 000–5 000 0,5–1 60 In case of software failures
Automatic transmission overhaul 150 000–250 000 10–15 95 For mechanical wear

As can be seen from the table, the most effective in terms of price/result ratio sensor replacement And wiring repair. Overhaul of the box is advisable only in case of critical wear or if the error is accompanied by P0730 And P0740 (torque converter malfunction).

Frequently asked questions about error P1715 on Nissan Murano

Is it possible to drive with error code P1715?

Short-term - yes, but no more than 1-2 days. Long driving leads to overheating of the oil and accelerated wear of the clutches. If the box goes into “emergency mode” (does not shift gears above 3rd), operation is prohibited.

Why does error P1715 only appear when it is cold?

This is typical for a worn speed sensor or dirty wiring. At low temperatures, the resistance in the circuit increases and the signal becomes unstable. Check the sensor and connector contacts.

How to reset error P1715 without a scanner?

You can disconnect the battery terminal for 10-15 minutes, but this will not eliminate the cause. The error will return during the next diagnostic cycle. To completely reset adaptations, you need a scanner with support Nissan.

What kind of oil should I fill in the Murano automatic transmission when replacing?

Only Nissan Matic-S (article KE908-99932) or its full analogue Idemitsu Type-M. Other oils (eg. Dexron VI) are not compatible with clutches RE0F10A/JK0 and will lead to slippage.

Could P1715 be caused by a bad torque converter?

Yes, but indirectly. If the torque converter is slipping, the input shaft speed does not match the engine speed, and TCM fixes the error. In this case, together with P1715 there will be codes P0740 or P0741.