Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System
📖 What Does B0186 Mean?
The B0186 code indicates a malfunction in the door lock actuator, which may prevent the doors from locking or unlocking properly.
⚠️
Symptoms
- • Door locks may not function
- • doors may not lock or unlock
- • or may do so intermittently.
🔍
Common Causes
- • Faulty door lock actuator
- • wiring issue
- • or a problem with the body control module.
Fix Guide
🛠️
Possible Solutions
1. Check the door lock actuator for damage or corrosion and replace it if necessary. 2. Inspect the wiring harness for damage or corrosion and repair or replace it if necessary. 3. Update the body control module's software if necessary. 4. Test the door lock actuator and wiring harness to ensure proper function.
Required Parts
Tools
Multimeter
Wire tester
Torx screwdriver
👨🔧
Need a Pro?
Complex codes like B0186 can be tricky. Don't risk it if you're unsure.
Quick Stats
Severity
Medium
DIY Friendly
No
Est. Time
1-2 hours
🔗
Related Diagnostic Codes
Other codes that may appear with B0186
B0100
Same System
B0100: Seat Position Sensor Malfunction
Medium
B0101
Same System
B0101: Body System Code B0101 - Lighting
Medium
B0102
Same System
B0102: Immobilizer System Malfunction
Medium
B0103
Same System
B0103: Audio System Malfunction
Medium
B0104
Same System
B0104: Airbag System Malfunction
High
B0105
Same System
B0105: Climate Control Blower Motor Fault
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