B2427 on 2015-2016 Nissan Murano: Power Liftgate Spindle Sensor Fault Guide

What's Unique About the 2015-2016 Nissan MURANO

For this generation of Murano (Z52), the power liftgate system is known for being sensitive to electronic glitches. The issue is so common that Nissan issued a Technical Service Bulletin, eventually updated to NTB15-073d, that prioritizes checking battery voltage and reprogramming the control module before replacing any hardware. Many owners report that a simple battery disconnect and reconnect cycle can resolve the problem, suggesting the root cause is often a temporary software fault rather than a hard part failure. This same liftgate system and its related issues are also found on platform mates like the 2013-2020 Nissan Pathfinder and 2014-2020 Infiniti QX60.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Power liftgate does not operate at all with any button (key fob, dash, or hatch).
• Power liftgate only opens or closes partially, or reverses direction on its own.
• A persistent, high-pitched beeping or warning chime is heard while driving, indicating the system is in a fault state.
• Liftgate makes a series of beeps (often three) but does not move when a button is pressed.
• Liftgate must be opened and closed manually.
• Grinding or clicking noises from the right rear pillar area during attempted operation.

Most Likely Causes

1. Electronic Glitch in Control Module 🔴 High Probability The Automatic Back Door Control Unit on this platform is sensitive to low battery events, battery changes, or even rapid command inputs, which can put it into a fault state that disables operation.
   How to confirm: Disconnect the negative battery terminal for 15-30 minutes to perform a hard reset of the modules. If the liftgate begins working again, the cause was a temporary glitch. 🎬 See this walkthrough of common liftgate checks and repairs.
   Typical fix: Perform a system reset by disconnecting the battery. This is the most commonly reported successful DIY fix.
   Est. part cost: $0
2. Outdated Control Module Software 🔴 High Probability Nissan identified a software logic issue and released TSB NTB15-073d to address it. The update changes the system's fault tolerance and, on 2015 models, changes the button's function from 'reverse' to 'stop' on a second press.
   How to confirm: A Nissan dealership can check the current software version of the ABD CU against the TSB using a CONSULT scan tool. If the part number on the scan tool matches the 'before' number in the TSB, the update is needed.
   Typical fix: Reprogram the Automatic Back Door Control Unit (ABD CU) and perform a system calibration as detailed in TSB NTB15-073d.
   Est. part cost: $0 (if under warranty), $150-$350 (dealer labor for programming)
3. Low or Unstable Battery Voltage 🟡 Medium Probability TSB NTB15-073d explicitly lists checking battery voltage as the first step. Voltage outside the 12.0V-15.5V range can cause the ABD CU to malfunction or even be damaged during a reprogramming attempt.
   How to confirm: Test the battery voltage with the engine off using a multimeter. It must be above 12.0V. A weak battery may still start the car but fail to provide stable voltage for sensitive modules.
   Typical fix: Charge or replace the vehicle's 12V battery.
   Est. part cost: $150-$350
4. Failed Right-Side Power Liftgate Motor Assembly 🟡 Medium Probability The position sensor is an integral, non-serviceable part of the motor assembly (spindle). If the sensor fails internally, the entire unit must be replaced. This is a common failure point after software issues are ruled out.
   How to confirm: If a battery reset, software update, and calibration do not resolve the code, and the wiring is intact, the motor assembly itself is the confirmed point of failure.
   Typical fix: Replace the right (passenger side) power liftgate motor/strut assembly. After replacement, a manual calibration/initialization is required.
   Est. part cost: $530-$870 (New OEM), $70-$150 (Used)

Rare But Worth Checking

• Damaged Wiring or Connectors:

Diagnosis Steps

1. First, check that the power back door switch inside the vehicle (usually on the lower-left dash) is set to 'ON'.
2. Attempt a system reset by disconnecting the negative terminal of the 12V battery for at least 15 minutes, then reconnecting it. This is the most common fix reported by owners.
3. Check the vehicle's 12V battery voltage with the engine off. Per TSB NTB15-073d, it must be between 12.0V and 15.5V. Charge or replace if necessary.
4. If the problem persists, consult a dealer or qualified shop to check if TSB NTB15-073d applies and has been performed. This can be identified by checking the ABD CU's part number with a scan tool.
5. If the TSB is applicable, have the Automatic Back Door Control Unit (ABD CU) reprogrammed.
6. Perform the Automatic Back Door Calibration/Initialization procedure after reprogramming or battery disconnect. This can be done by manually setting the gate to the desired height and holding the close button on the gate itself until it beeps.
7. If the code returns, inspect the wiring harness and connector for the right-side liftgate motor for damage or corrosion, especially in the rubber boot between the body and the hatch.
8. If all previous steps fail, replace the right-side power liftgate motor assembly (P/N 90560-5AA1A).
9. If the liftgate is stuck closed, access the manual release by prying off the small plastic cover in the center of the interior liftgate trim panel and moving the lever inside.

Parts You'll Likely Need

• Right Power Liftgate Drive Unit (OEM #90560-5AA1A) — This assembly contains the spindle sensor that fails and triggers the B2427 code. It is the ultimate hardware fix if software and resets do not solve the problem. This part number supersedes previous versions 90560-5AA0A, 90560-5AA0B, and 90560-5AA2A.
  Trusted brands: Nissan (OEM)
  OEM price range: $530-$870
  Aftermarket price range: $70-$150 (Used)

Related Codes That Often Appear With This One

• B2426-29 — This is the corresponding code for the left-hand (LH) spindle sensor. It's common for both to be listed in the TSB, as they are part of the same system.
• B2416-1E / B2417-1E — These codes relate to the touch sensors on the liftgate and are part of the same system. A fault in one area can be flagged along with others.
• B242A-13 — This code relates to the liftgate closer/latch condition and is often seen with spindle sensor faults as part of a general system malfunction.

Technical Service Bulletins (TSBs) & Recalls

• NTB15-073d: 2015-2018 Murano; Automatic back door does not operate and related DTCs. This is the most current and relevant TSB.
• NTB15-073B: 2015-2016 Murano; Automatic back door does not operate and related DTCs. (Superseded by NTB15-073d)

Platform-Specific Known Issues

• This issue is the subject of Nissan Technical Service Bulletin NTB15-073d, which superseded versions 'c' and 'b'. It addresses the non-operational back door and related DTCs including B2427. The bulletin's procedure, which prioritizes checking battery voltage and reprogramming the control module, is the key platform-specific detail for this repair. For 2015 models, the reprogram alters the dash switch functionality.

Mechanic-Grade Diagnostic Values

• Battery Voltage (engine off) — expected: 12.0V - 15.5V. Failure: Voltage below 12.0V can cause control module malfunction or prevent successful reprogramming.

Hidden / Shadow Codes Worth Checking

• B2427-29: The '-29' is a manufacturer-specific symptom byte. In TSBs for the Murano, this suffix is consistently paired with the description 'SPINDLE SENSOR RH', indicating a fault directly related to the sensor itself. (see via A dealer-level scan tool like the Nissan CONSULT is required to view these detailed symptom bytes.)

Scan Tool Commands That Help

• Nissan CONSULT: ABD CU Reprogramming — To apply the updated software logic from TSB NTB15-073d, which is the primary factory-prescribed fix for electronic glitches causing this code.
• Nissan CONSULT: Work Support > Automatic Back Door Calibration — After replacing a component, reprogramming the module, or performing a battery disconnect to re-learn the door's fully open and closed positions.

Wiring & Ground Locations

• Main Battery Ground — Under the hood, connected to the negative battery terminal and chassis.. Poor or corroded main grounds can cause low voltage conditions and erratic behavior in sensitive body control modules like the ABD CU.
• Tailgate Harness Ground — An aftermarket installation guide shows a ground wire being connected to the metal structure at the top of the tailgate itself.. A dedicated ground for the tailgate components is necessary for proper operation of the motors and sensors.

Real Owner Repair Stories

• YouTube channel @WrenchingRyan (2018 Nissan Murano) — Power liftgate became completely inoperative after the vehicle's battery died.
  ❌ Tried (didn't work) Pressing the dash button, Pressing and holding the key fob button, Starting the engine and trying the buttons again
  ✅ What actually fixed it The owner disconnected the negative battery terminal for approximately two minutes, cleaned the corroded battery terminals, and reconnected the battery. The power liftgate function was immediately restored.

OEM Part Supersession History

• 90560-5AA0A, 90560-5AA0B, 90560-5AA2A → 90560-5AA1A — These are earlier revisions of the right-side power liftgate motor. The part was superseded likely to improve the reliability of the internal spindle sensor that causes the B2427 fault.
  Heads up: None. The latest part number, 90560-5AA1A, is the correct direct replacement for all previous versions.

Model Year Variations Within This Range

• 2015 only: The software update in TSB NTB15-073d changes the behavior of the power liftgate buttons. Before the update, pressing a button while the gate is opening causes it to immediately reverse and close. After the update, the first press stops the gate, and a second press is required to reverse it.