← View Generic B0974 Guide Severity: High

🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

B0974: B0974: Immobilizer System Malfunction

on 2018 BMW X5

Fix Cost

$200 - $500

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

❌ No

Pro recommended

Your Vehicle

2018 BMW

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Important for 2018 BMW X5 Owners

Before starting repairs, verify which engine your 2018 BMW X5 has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0974 Mean on 2018 BMW X5?

The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code indicates a problem with the immobilizer system's communication with the engine control module.

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Symptoms

• Vehicle won't start
• won't crank
• or won't run

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Common Causes

• Faulty immobilizer key fob
• damaged or corroded wiring
• faulty immobilizer module
• or a problem with the engine control module's communication with the immobilizer system

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How to Fix B0974 on 2018 BMW X5

1. Check the immobilizer key fob for damage or corrosion. Replace if necessary. 2. Inspect and clean the wiring harness for corrosion or damage. 3. Check the immobilizer module for faults and replace if necessary. 4. Update the engine control module's software if necessary.

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Need Maintenance Info for Your X5?

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Parts for 2018 BMW X5

immobilizer key fob Shop ↗ wiring harness Shop ↗ immobilizer module Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0974

B0972 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