← View Generic B2790 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2014 Nissan SENTRA

B2790: B2790: Body System Security 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

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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 B2790 Mean on 2014 Nissan SENTRA?

The body control module (BCM) has detected a security-related issue, such as a faulty door ajar switch or a malfunctioning alarm system.

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Symptoms

• Alarm system activation
• door locks not functioning
• or dashboard warning lights illuminated.

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Common Causes

• Faulty door ajar switch
• malfunctioning alarm system
• or a problem with the BCM's security communication protocol.

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How to Fix B2790 on 2014 Nissan SENTRA

1. Check the door ajar switches for proper operation and clean or replace them if necessary. 2. Inspect the alarm system wiring and connections for damage or corrosion. 3. Update the BCM's software if necessary. 4. Replace the BCM if it's faulty.

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Need Maintenance Info for Your SENTRA?

Get oil capacity, filter specs, and torque settings for your specific 2014 Nissan SENTRA.

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Parts for 2014 Nissan SENTRA

Door ajar switch Shop ↗ Alarm system wiring harness Shop ↗ BCM software update Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with B2790

B2788 Sequential Code

💡 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