OBD Guide
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B1363

Driver Belt Pretensioner Short to Ground

B1363 is an OBD-II diagnostic trouble code meaning: Driver Belt Pretensioner Short to Ground. Common causes: damaged pretensioner wiring harness, short circuit to ground in the circuit. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light (SRS) is on
  • The diagnostic system displays error B1363
  • The seat belt pretensioner may not engage in an accident.

Causes

  • Damaged pretensioner wiring harness
  • Short circuit to ground in the circuit
  • Corrosion of contacts or connectors
  • Malfunction of the pretensioner itself
  • Problem in the SRS control unit

How to Fix

  1. Diagnose the SRI system using a scanner
  2. Visually inspect the pretensioner wiring harness and connectors
  3. Check the integrity of the pretensioner chain
  4. If necessary, replace damaged wires or connectors
  5. Test the operation of the system after repair
  6. Reset SRS system errors

Related codes

B1362B1364B1000

FAQ

What does the B1363 code mean?

B1363 is an OBD-II diagnostic trouble code that indicates: Driver Belt Pretensioner Short to Ground

What causes a B1363 error code?

The most common causes of B1363 include: Damaged pretensioner wiring harness; Short circuit to ground in the circuit; Corrosion of contacts or connectors; Malfunction of the pretensioner itself.

How do I fix a B1363 diagnostic trouble code?

To fix B1363: Diagnose the SRI system using a scanner. Visually inspect the pretensioner wiring harness and connectors. Check the integrity of the pretensioner chain. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1363?

Do not drive — repair immediately

How much does it cost to fix B1363?

The estimated repair cost for B1363 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat