OBD Guide
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B1902

Short to Ground in Front Pretensioner Squib Right Circuit

B1902 is an OBD-II diagnostic trouble code meaning: Short to Ground in Front Pretensioner Squib Right Circuit. Common causes: wiring harness damage, pretensioner squib malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • Restraint system malfunction
  • Error B1902 in diagnostic scanner memory

Causes

  • Wiring harness damage
  • Pretensioner squib malfunction
  • Short circuit to ground
  • Problems with the SRS control unit

How to Fix

  1. Conduct a visual inspection of the wiring harness
  2. Check pretensioner chain resistance
  3. Replace damaged components
  4. Reset the error and check the system

Related codes

B1901B1903B1904

FAQ

What does the B1902 code mean?

B1902 is an OBD-II diagnostic trouble code that indicates: Short to Ground in Front Pretensioner Squib Right Circuit

What causes a B1902 error code?

The most common causes of B1902 include: Wiring harness damage; Pretensioner squib malfunction; Short circuit to ground; Problems with the SRS control unit.

How do I fix a B1902 diagnostic trouble code?

To fix B1902: Conduct a visual inspection of the wiring harness. Check pretensioner chain resistance. Replace damaged components. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1902?

Limited driving only, diagnose soon

How much does it cost to fix B1902?

The estimated repair cost for B1902 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat