U0151Network Communication

Lost Communication With Restraints Control Module

U0151 means a module has lost communication with the restraints control module over the CAN bus. Airbag and seatbelt systems may be disabled. It usually points to a wiring, power, ground, or connector fault.

🚗 Not recommended. Losing the restraints module can disable airbags and seatbelt pretensioners.

HIGH

severity

🎯 Top Causes, Ranked by Likelihood

#1Wiring, connector, or CAN bus fault$50-$500

45%

Damaged or corroded wiring to the restraints module.

#2Power or ground fault$50-$400

30%

Blown fuse or poor ground at the module.

#3Failed restraints control module$400-$1500

15%

The airbag module itself has failed.

🩺 Common Symptoms

Airbag warning light
Restraints system disabled
Warning lights
Seatbelt warning
Other U-codes stored

💰 Repair Cost: DIY vs Shop

DIY Cost

$50-$400

Shop Cost

$150-$1200

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose U0151

1Check fuses, power, and grounds for the restraints module

2Inspect CAN wiring and connectors at the module

3Scan all modules for lost-communication patterns

4Follow safe airbag service procedures during diagnosis

❓ Frequently Asked Questions

Can I drive with U0151?

Not safely. Airbags and pretensioners may not deploy in a crash. Diagnose it right away.

What causes U0151?

Wiring, connector, or power/ground faults at the restraints module, most often.

Are my airbags disabled with U0151?

They may be. When the restraints module cannot communicate, airbag and seatbelt protection can be disabled until repaired.

🔗 Related Codes

U0100U0140U0155U0121