P0BC0
Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low
P0BC0 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low. Common causes: problems with fan wiring or connectors, fan circuit relay or fuse failure. Estimated repair cost: $56–167.
Symptoms
- Hybrid system power reduction
- Battery overheat warning on dashboard
- Noisy cooling fan
- Extended charging time
- Reduced electric vehicle range
Causes
- Problems with fan wiring or connectors
- Fan circuit relay or fuse failure
- Wiring harness damage
- Battery control unit malfunction
- Problems with the cooling fan itself
How to Fix
- Check fan circuit fuses and relays
- Inspect connectors and wiring for damage
- Check the voltage at the fan terminals
- Test the fan operation directly
- If necessary, replace the cooling fan
Related codes
Error P0BC0 by Vehicle Brand
FAQ
What does the P0BC0 code mean?
P0BC0 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low
What causes a P0BC0 error code?
The most common causes of P0BC0 include: Problems with fan wiring or connectors; Fan circuit relay or fuse failure; Wiring harness damage; Battery control unit malfunction.
How do I fix a P0BC0 diagnostic trouble code?
To fix P0BC0: Check fan circuit fuses and relays. Inspect connectors and wiring for damage. Check the voltage at the fan terminals. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0BC0?
Do not drive — repair immediately
How much does it cost to fix P0BC0?
The estimated repair cost for P0BC0 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat