Lost Communication With Park Brake Control Module

Where it lives

For U0128, the description names the module as the part involved.

Check these first

• A wiring or connector fault between the Park Brake Control Module and the network
• Corrosion or water in the module connectors
• A failed Park Brake Control Module
• Outdated firmware in the module
• A central computer fault that drops the link

What to do next

1. Scan all modules for communication codes
2. Inspect the Park Brake Control Module harness and connectors
3. Check the module power and ground feeds
4. Update the module firmware if the bus and feeds test good
5. Replace the Park Brake Control Module if the fault returns
6. Clear the code and retest

Look up another code