U01BC
Lost Communication With Charge Air Cooler Coolant Pump B
U01BC is an OBD-II diagnostic trouble code meaning: Lost Communication With Charge Air Cooler Coolant Pump B. Common causes: open or short circuit in the pump circuit, intercooler coolant pump malfunction. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Charge air overheating
- The engine goes into emergency mode
- Increased fuel consumption
Causes
- Open or short circuit in the pump circuit
- Intercooler coolant pump malfunction
- Problems with connectors or wiring
- Faulty relay or fuse
- Problems with the engine ECU
How to Fix
- Check the pump fuse and relay
- Diagnose the power supply and pump control circuit
- Check connectors and wiring harness for damage
- Test the coolant pump
- If necessary, replace the pump or wiring
Related codes
Error U01BC by Vehicle Brand
FAQ
What does the U01BC code mean?
U01BC is an OBD-II diagnostic trouble code that indicates: Lost Communication With Charge Air Cooler Coolant Pump B
What causes a U01BC error code?
The most common causes of U01BC include: Open or short circuit in the pump circuit; Intercooler coolant pump malfunction; Problems with connectors or wiring; Faulty relay or fuse.
How do I fix a U01BC diagnostic trouble code?
To fix U01BC: Check the pump fuse and relay. Diagnose the power supply and pump control circuit. Check connectors and wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U01BC?
Yes, but get it checked soon
How much does it cost to fix U01BC?
The estimated repair cost for U01BC is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat