Fix Cost
$200 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System
📖 What Does B0142 Mean?
The immobilizer system has malfunctioned, preventing the vehicle from starting or running. This code is often caused by a faulty immobilizer key fob, keyless entry system, or a problem with the vehicle's computer.
⚠️
Symptoms
- • Vehicle won't start
- • won't run
- • or has intermittent starting issues
🔍
Common Causes
- • Faulty immobilizer key fob
- • keyless entry system
- • faulty vehicle computer
- • or wiring issues
Fix Guide
🛠️
Possible Solutions
1. Check the key fob's battery level and replace it if necessary. 2. Check the keyless entry system for any issues. 3. Check the vehicle computer for any errors or faults. 4. Check the wiring harness for any damage or corrosion.
Required Parts
Tools
multimeter
wiring tester
diagnostic scanner
👨🔧
Need a Pro?
Complex codes like B0142 can be tricky. Don't risk it if you're unsure.
Quick Stats
Severity
High
DIY Friendly
No
Est. Time
1-2 hours
🔗
Related Diagnostic Codes
Other codes that may appear with B0142
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