OBD Guide

P2CF4

Hybrid/EV Battery Pack Coolant Pump B Supply Voltage Circuit

P2CF4 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Pack Coolant Pump B Supply Voltage Circuit. Common causes: cooling pump malfunction, open or short circuit in wiring. Estimated repair cost: $56โ€“167.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$56โ€“167 (est.)

Symptoms

  • Hybrid/electric battery overheating
  • Reduced vehicle power
  • Dashboard warning
  • Increased noise from the pump

Causes

  • Cooling pump malfunction
  • Open or short circuit in wiring
  • Problems with the control unit
  • Low coolant level

How to Fix

  1. Check coolant level
  2. Diagnose the cooling pump
  3. Check wiring integrity
  4. Check control unit

Related codes

Error P2CF4 by Vehicle Brand

FAQ

What does the P2CF4 code mean?

P2CF4 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Pack Coolant Pump B Supply Voltage Circuit

What causes a P2CF4 error code?

The most common causes of P2CF4 include: Cooling pump malfunction; Open or short circuit in wiring; Problems with the control unit; Low coolant level.

How do I fix a P2CF4 diagnostic trouble code?

To fix P2CF4: Check coolant level. Diagnose the cooling pump. Check wiring integrity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2CF4?

Do not drive โ€” repair immediately

How much does it cost to fix P2CF4?

The estimated repair cost for P2CF4 is $56โ€“167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat