Generic Network Error Code U0151: How to Fix It

Medium 1-2 hours Critical Severity Verified June 2026
Error Code
U0151
Brand
Generic Network
Product Type
automotive
Severity
Critical
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code U0151 indicates your vehicle has lost communication with the Restraints Control Module (RCM), which controls the airbag system. This is a critical safety issue that requires immediate attention as it may disable your airbags in a collision.
Ad

Tools You'll Need

How to Fix Error Code U0151

  1. Turn off vehicle and engage parking brake

    Never work on airbag systems immediately after turning off the vehicle. Always wait at least 10 minutes to prevent accidental deployment.
  2. Connect OBD2 scanner and check for additional codes

  3. Inspect airbag fuse and relay

    Always disconnect the battery negative terminal before removing fuses or relays from the airbag system.
  4. Check battery voltage and charging system

  5. Inspect wiring harness to RCM

    Do not disconnect RCM connectors unless absolutely necessary. Improper handling can cause permanent damage to the module.
  6. Test CAN bus network continuity

  7. Clear codes and test drive

Parts You May Need

Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Airbag system fuse
Check Price on Amazon
Airbag system relay
Check Price on Amazon
Wiring harness repair kit
Check Price on Amazon
Restraints Control Module (RCM)
Check Price on Amazon
Ad

When to Call a Professional

Call a professional mechanic or dealership if the RCM module needs replacement, if extensive wiring repairs are needed, or if you're uncomfortable working with airbag systems. Airbag work requires special procedures and tools to prevent accidental deployment.

Frequently Asked Questions

Can I drive my car with U0151 error code?
You should not drive with U0151 error as it indicates airbag system failure. Your airbags may not deploy in an accident, creating a serious safety risk.
How much does it cost to fix U0151 error code?
Repair costs range from $50-200 for simple fixes like fuses or wiring, to $500-1500 if the Restraints Control Module needs replacement.
Will U0151 cause my car to fail inspection?
Yes, U0151 will typically cause your vehicle to fail safety inspection since it indicates a critical airbag system malfunction.
Can a dead battery cause U0151 error code?
Yes, low battery voltage or poor electrical connections can cause communication errors including U0151. Always check battery and charging system first.
Is U0151 covered under warranty?
U0151 may be covered under your vehicle's safety system warranty if the car is still under warranty. Check with your dealer for coverage details.