OBD Guide
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B1089

Front Pre-Tensioner Left Short

B1089 is an OBD-II diagnostic trouble code meaning: Front Pre-Tensioner Left Short. Common causes: wiring harness damage, left pretensioner malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • SRS can be deactivated
  • Pretensioner does not work in an accident

Causes

  • Wiring harness damage
  • Left pretensioner malfunction
  • Short circuit in the circuit
  • Problems with the SRS control unit

How to Fix

  1. Check wiring harness for damage
  2. Check pretensioner chain resistance
  3. Replace pretensioner if necessary
  4. Check SRS control unit

Related codes

B1088B1090B1091

FAQ

What does the B1089 code mean?

B1089 is an OBD-II diagnostic trouble code that indicates: Front Pre-Tensioner Left Short

What causes a B1089 error code?

The most common causes of B1089 include: Wiring harness damage; Left pretensioner malfunction; Short circuit in the circuit; Problems with the SRS control unit.

How do I fix a B1089 diagnostic trouble code?

To fix B1089: Check wiring harness for damage. Check pretensioner chain resistance. Replace pretensioner if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1089?

Do not drive — repair immediately

How much does it cost to fix B1089?

The estimated repair cost for B1089 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat