OBD Guide
ENFRDEESPT

B1863

Short to Positive in Driver Side Knee Airbag Squib Circuit

B1863 is an OBD-II diagnostic trouble code meaning: Short to Positive in Driver Side Knee Airbag Squib Circuit. Common causes: wiring harness damage, airbag squib malfunction. Estimated repair cost: $111–333.

Severity
🚨 Critical
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • Airbag light is on
  • The airbag may not deploy in an accident.
  • Possible false alarms of the system

Causes

  • Wiring harness damage
  • Airbag squib malfunction
  • Problems in the SRS control unit
  • Short circuit to positive in the circuit

How to Fix

  1. Check wiring harness for damage
  2. Check squib resistance
  3. Check the SRS control unit for errors
  4. Replace damaged components
  5. Reset the error and check the system

Related codes

B1864B1865B1866

FAQ

What does the B1863 code mean?

B1863 is an OBD-II diagnostic trouble code that indicates: Short to Positive in Driver Side Knee Airbag Squib Circuit

What causes a B1863 error code?

The most common causes of B1863 include: Wiring harness damage; Airbag squib malfunction; Problems in the SRS control unit; Short circuit to positive in the circuit.

How do I fix a B1863 diagnostic trouble code?

To fix B1863: Check wiring harness for damage. Check squib resistance. Check the SRS control unit for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1863?

Do not drive — repair immediately

How much does it cost to fix B1863?

The estimated repair cost for B1863 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat