OBD Guide

B14FF

Low Side Driver 7

B14FF is an OBD-II diagnostic trouble code meaning: Low Side Driver 7. Common causes: open or short circuit in driver circuit 7, driver malfunction in the control unit. Estimated repair cost: $56–167.

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

Symptoms

  • Unstable engine operation
  • Dips during acceleration
  • Check Engine Light Illuminates
  • Failure of individual vehicle systems

Causes

  • Open or short circuit in driver circuit 7
  • Driver malfunction in the control unit
  • Eating or weight problems
  • Associated actuator fault

How to Fix

  1. Check driver circuit integrity 7
  2. Measure the voltage and resistance at the driver output
  3. Check associated actuators
  4. If necessary, replace the control unit

Related codes

FAQ

What does the B14FF code mean?

B14FF is an OBD-II diagnostic trouble code that indicates: Low Side Driver 7

What causes a B14FF error code?

The most common causes of B14FF include: Open or short circuit in driver circuit 7; Driver malfunction in the control unit; Eating or weight problems; Associated actuator fault.

How do I fix a B14FF diagnostic trouble code?

To fix B14FF: Check driver circuit integrity 7. Measure the voltage and resistance at the driver output. Check associated actuators. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B14FF?

Limited driving only, diagnose soon

How much does it cost to fix B14FF?

The estimated repair cost for B14FF is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat