C0387 — Electronic Brake Proportioning Performance
Seen on: Heavy Truck
Electronic Brake Proportioning Performance. Common causes: EBP system not meeting performance target.
Your code rides along, so nearby mechanics see the fault before they quote you.
How serious is it?
Caution. Limp to the next safe stop.
Most likely causes
- EBP system not meeting performance target
- Brake imbalance
- WSS fault affecting EBP
First moves (roadside)
- Check all WSS inputs
- verify brake balance front-to-rear
FAQ
Electronic Brake Proportioning Performance. Common causes: EBP system not meeting performance target.
Caution — Limp to the next safe stop.
The most common cause is: EBP system not meeting performance target. Other possibilities include Brake imbalance; WSS fault affecting EBP.
Limp to the next safe stop. When in doubt, get a qualified mobile diesel tech on the truck before continuing.
Find a mechanic or related guides
General diagnostic guidance for diesel engines (Cummins, Detroit, PACCAR, Volvo, Mack and more). Not a substitute for a scan-tool diagnosis on your specific truck.