← View Generic B2774 Guide Severity: High
🚗 Vehicle-Specific Guide

This guide is customized for your 2014 Nissan SENTRA

B2774: B2774: Immobilizer System Malfunction

on 2014 Nissan SENTRA

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2014 Nissan
SENTRA
⚠️

Important for 2014 Nissan SENTRA Owners

Before starting repairs, verify which engine your 2014 Nissan SENTRA has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B2774 Mean on 2014 Nissan SENTRA?

The immobilizer system has detected a malfunction, preventing the vehicle from starting. This code is typically set when the immobilizer system is not functioning correctly, preventing the vehicle from starting.
⚠️

Symptoms

  • • Vehicle will not start
  • • may display a 'security system malfunction' message on the dashboard
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Common Causes

  • • Faulty immobilizer system module
  • • faulty key fob
  • • low battery in key fob
  • • incorrect key fob programming
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How to Fix B2774 on 2014 Nissan SENTRA

1. Check the key fob battery level and replace if necessary. 2. Try to start the vehicle with the spare key fob if available. 3. If the issue persists, reprogram the key fob using a scan tool. 4. If the issue still persists, replace the immobilizer system module.

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Need Maintenance Info for Your SENTRA?

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Parts for 2014 Nissan SENTRA

immobilizer system module Shop ↗ key fob Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2014 Nissan SENTRA

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🔗

Related Diagnostic Codes

Other codes that may appear with B2774

B2772 Sequential Code

B2772: Seat Position Sensor Circuit Malfunction

Medium
B2773 Sequential Code

B2773: Exterior Lighting Malfunction

Medium
B2775 Sequential Code

B2775: Audio System Malfunction

Medium
B2776 Sequential Code

B2776: Airbag System Fault

High

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system