← View Generic B0122 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2018 BMW X5
B0122: B0122: Door Locks Actuator Fault
on 2018 BMW X5
Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2018 BMW
X5
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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 B0122 Mean on 2018 BMW X5?
The B0122 code indicates a fault in the door lock actuator circuit, which prevents the door locks from functioning properly.
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Symptoms
- • Door locks do not function
- • may be stuck or jammed
- • or may not respond to key fob or door switch commands.
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Common Causes
- • Faulty door lock actuator
- • wiring issue
- • or a problem with the body control module.
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How to Fix B0122 on 2018 BMW X5
1. Disconnect the battery to reset the system. 2. Check and repair or replace the door lock actuator. 3. Inspect and repair or replace any damaged wiring. 4. Update the body control module if necessary.
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Need Maintenance Info for Your X5?
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Related Diagnostic Codes
Other codes that may appear with B0122
B0120
Sequential Code
B0120: Airbag System Malfunction
Medium
B0121
Sequential Code
B0121: Climate Control Actuator Malfunction
Medium
B0123
Sequential Code
B0123: Window Regulator Motor Malfunction
Medium
B0124
Sequential Code
B0124: Seat Adjuster Motor Malfunction
Medium
💡 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