OBD Guide
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B14F8

Low Side Driver 1

B14F8 is an OBD-II diagnostic trouble code meaning: Low Side Driver 1. Common causes: open or short circuit in wiring harness, malfunction of solenoid or squib. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The security system malfunction lamp is on
  • Belt pretensioners do not work
  • Error persists after reset

Causes

  • Open or short circuit in wiring harness
  • Malfunction of solenoid or squib
  • Problems with the control module
  • Contact corrosion

How to Fix

  1. Check the wiring harness for breaks and short circuits
  2. Check control circuit resistance
  3. Inspect contacts for corrosion
  4. Check the operation of related components (solenoids, squibs)
  5. If necessary, replace faulty elements

Related codes

B14F9B14FAB14FB

FAQ

What does the B14F8 code mean?

B14F8 is an OBD-II diagnostic trouble code that indicates: Low Side Driver 1

What causes a B14F8 error code?

The most common causes of B14F8 include: Open or short circuit in wiring harness; Malfunction of solenoid or squib; Problems with the control module; Contact corrosion.

How do I fix a B14F8 diagnostic trouble code?

To fix B14F8: Check the wiring harness for breaks and short circuits. Check control circuit resistance. Inspect contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B14F8?

Do not drive — repair immediately

How much does it cost to fix B14F8?

The estimated repair cost for B14F8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat