OBD Guide

B2001

Short To Ground In Seat Belt Motor Right Circuit

B2001 is an OBD-II diagnostic trouble code meaning: Short To Ground In Seat Belt Motor Right Circuit. Common causes: short to ground in the pretensioner wiring harness, damaged seat belt pretensioner motor. Estimated repair cost: $56–167.

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

Symptoms

  • The airbag warning light is on
  • Error B2001 in diagnostic scanner memory
  • Right seat belt pretensioner malfunction

Causes

  • Short to ground in the pretensioner wiring harness
  • Damaged seat belt pretensioner motor
  • Malfunction of the airbag control unit
  • Corrosion or oxidation of connector contacts

How to Fix

  1. Check the right pretensioner wiring harness for damage.
  2. Measure the resistance of the pretensioner motor circuit
  3. Check connector contacts for oxidation and corrosion
  4. If necessary, replace the pretensioner motor or wiring harness.
  5. Clear error memory and check for B2001 code to reappear

Related codes

FAQ

What does the B2001 code mean?

B2001 is an OBD-II diagnostic trouble code that indicates: Short To Ground In Seat Belt Motor Right Circuit

What causes a B2001 error code?

The most common causes of B2001 include: Short to ground in the pretensioner wiring harness; Damaged seat belt pretensioner motor; Malfunction of the airbag control unit; Corrosion or oxidation of connector contacts.

How do I fix a B2001 diagnostic trouble code?

To fix B2001: Check the right pretensioner wiring harness for damage.. Measure the resistance of the pretensioner motor circuit. Check connector contacts for oxidation and corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2001?

Do not drive — repair immediately

How much does it cost to fix B2001?

The estimated repair cost for B2001 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat