OBD Guide
ENFRDEESPT

B27F2

Refrigerant Channel Switching 2 Way Type Valve

B27F2 is an OBD-II diagnostic trouble code meaning: Refrigerant Channel Switching 2 Way Type Valve. Common causes: valve mechanical part jammed, open or short circuit in control circuit. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Insufficient cooling or heating of the interior
  • Unstable operation of the air conditioning system
  • Clicking or other extraneous sounds from under the hood

Causes

  • Valve mechanical part jammed
  • Open or short circuit in control circuit
  • Wiring harness damage
  • Loss of valve tightness

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check valve coil resistance
  3. Check the voltage supply to the valve
  4. Test valve tightness
  5. Replace valve if necessary

Related codes

B27F1B27F3B2790

FAQ

What does the B27F2 code mean?

B27F2 is an OBD-II diagnostic trouble code that indicates: Refrigerant Channel Switching 2 Way Type Valve

What causes a B27F2 error code?

The most common causes of B27F2 include: Valve mechanical part jammed; Open or short circuit in control circuit; Wiring harness damage; Loss of valve tightness.

How do I fix a B27F2 diagnostic trouble code?

To fix B27F2: Check the integrity of the wiring harness and connectors. Check valve coil resistance. Check the voltage supply to the valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B27F2?

Yes, but get it checked soon

How much does it cost to fix B27F2?

The estimated repair cost for B27F2 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat