Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System
📖 What Does B0165 Mean?
This code indicates a problem with the turn signal or hazard warning light circuit, preventing proper function or illumination.
⚠️
Symptoms
- • Turn signals not functioning
- • hazard warning lights not flashing
- • or warning lights remaining on after turning them off.
🔍
Common Causes
- • Faulty turn signal switch
- • bad bulb
- • wiring issue
- • or a problem with the turn signal module.
Fix Guide
🛠️
Possible Solutions
1. Check and replace the turn signal switch if faulty. 2. Inspect and replace any blown bulbs. 3. Check wiring for damage or corrosion and repair as needed. 4. Test the turn signal module and replace if faulty.
Required Parts
Tools
Multimeter
Torx screwdriver
Pliers
👨🔧
Need a Pro?
Complex codes like B0165 can be tricky. Don't risk it if you're unsure.
Quick Stats
Severity
Medium
DIY Friendly
Yes
Est. Time
1-2 hours
🔗
Related Diagnostic Codes
Other codes that may appear with B0165
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