P2CB4
Charge Air Cooler Coolant Pump B Supply Voltage Circuit
P2CB4 is an OBD-II diagnostic trouble code meaning: Charge Air Cooler Coolant Pump B Supply Voltage Circuit. Common causes: intercooler coolant pump malfunction, open or short circuit in the power supply. Estimated repair cost: $56–167.
Symptoms
- Reduced engine power
- Check Engine Light Illuminates
- Charge air overheating
- Unstable engine operation under load
Causes
- Intercooler coolant pump malfunction
- Open or short circuit in the power supply
- Relay or fuse problems
- Engine control unit malfunction
- Corroded contacts or damaged wiring
How to Fix
- Check the pump circuit fuses and relays
- Inspect the wiring harness for damage
- Check the functionality of the coolant pump
- Scan the control unit for additional errors
- Check contacts and connections in the power supply circuit
Related codes
Error P2CB4 by Vehicle Brand
FAQ
What does the P2CB4 code mean?
P2CB4 is an OBD-II diagnostic trouble code that indicates: Charge Air Cooler Coolant Pump B Supply Voltage Circuit
What causes a P2CB4 error code?
The most common causes of P2CB4 include: Intercooler coolant pump malfunction; Open or short circuit in the power supply; Relay or fuse problems; Engine control unit malfunction.
How do I fix a P2CB4 diagnostic trouble code?
To fix P2CB4: Check the pump circuit fuses and relays. Inspect the wiring harness for damage. Check the functionality of the coolant pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2CB4?
Limited driving only, diagnose soon
How much does it cost to fix P2CB4?
The estimated repair cost for P2CB4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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