OBD Guide
ENFRDEESPT

B14F6

High Side Driver 7

B14F6 is an OBD-II diagnostic trouble code meaning: High Side Driver 7. Common causes: high voltage driver malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of a controlled component (for example, VVT solenoid)
  • Check Engine Light Illuminates
  • Reduced engine efficiency
  • Idle problems

Causes

  • High voltage driver malfunction
  • Open or short circuit in wiring harness
  • Malfunction of the controlled component (solenoid, valve)
  • Problems with the engine control unit (ECU)

How to Fix

  1. Diagnose the driver circuit using a multimeter
  2. Check the wiring harness for breaks or short circuits
  3. Test controlled component (solenoid, valve)
  4. Replace high voltage driver or repair wiring harness
  5. Reset the error and take a test drive

Related codes

P0645P0650P0690

FAQ

What does the B14F6 code mean?

B14F6 is an OBD-II diagnostic trouble code that indicates: High Side Driver 7

What causes a B14F6 error code?

The most common causes of B14F6 include: High voltage driver malfunction; Open or short circuit in wiring harness; Malfunction of the controlled component (solenoid, valve); Problems with the engine control unit (ECU).

How do I fix a B14F6 diagnostic trouble code?

To fix B14F6: Diagnose the driver circuit using a multimeter. Check the wiring harness for breaks or short circuits. Test controlled component (solenoid, valve). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B14F6?

Limited driving only, diagnose soon

How much does it cost to fix B14F6?

The estimated repair cost for B14F6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat