Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System
📖 What Does B0077 Mean?
This code indicates a problem with the exterior lighting system, such as a faulty headlight, taillight, or turn signal.
⚠️
Symptoms
- • Dim or inoperative exterior lights
- • warning lights on dashboard
🔍
Common Causes
- • Faulty headlight or taillight bulb
- • wiring issue
- • or body control module malfunction
Fix Guide
🛠️
Possible Solutions
1. Check and replace faulty bulb(s), 2. Inspect and repair wiring issues, 3. Update body control module software (if applicable)
Required Parts
Tools
Multimeter
Torx screwdriver
Pliers
👨🔧
Need a Pro?
Complex codes like B0077 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 B0077
B0000
Same System
Airbag System Malfunction (B0000)
High
B0001
Same System
Body System Code B0001: Climate Control Malfunction
Medium
B0002
Same System
Body System Code B0002: Door Locks Malfunction
Medium
B0003
Same System
Body System Code B0003: Windows
Medium
B0004
Same System
Seat Position Sensor Malfunction
Medium
B0005
Same System
Body System Code B0005: Lighting 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