OBD Guide
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B1802

Short to GND in Driver Side Squib Circuit

B1802 is an OBD-II diagnostic trouble code meaning: Short to GND in Driver Side Squib Circuit. Common causes: frayed or damaged airbag wiring harness, corrosion or oxidation of contacts in connectors. Estimated repair cost: $56–167.

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

Symptoms

  • The airbag indicator (SRS/AIR BAG) is on.
  • Passive safety fault message on display
  • Driver airbag disabled

Causes

  • Frayed or damaged airbag wiring harness
  • Corrosion or oxidation of contacts in connectors
  • Mechanical damage after unqualified repair of the steering column or dashboard elements
  • Faulty squib in the steering wheel
  • Defective SRS control unit (rare)

How to Fix

  1. Carry out diagnostics, read current SRS fault codes
  2. Visually inspect the airbag wiring harness in the steering column area for damage.
  3. Check connectors (often yellow) for corrosion and tight connections
  4. Test the squib circuit with a multimeter to check for a short circuit to ground.
  5. Replace damaged wiring harness or connector
  6. Clear error codes and check system operation

Related codes

B1801B1803B1804

FAQ

What does the B1802 code mean?

B1802 is an OBD-II diagnostic trouble code that indicates: Short to GND in Driver Side Squib Circuit

What causes a B1802 error code?

The most common causes of B1802 include: Frayed or damaged airbag wiring harness; Corrosion or oxidation of contacts in connectors; Mechanical damage after unqualified repair of the steering column or dashboard elements; Faulty squib in the steering wheel.

How do I fix a B1802 diagnostic trouble code?

To fix B1802: Carry out diagnostics, read current SRS fault codes. Visually inspect the airbag wiring harness in the steering column area for damage.. Check connectors (often yellow) for corrosion and tight connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1802?

Do not drive — repair immediately

How much does it cost to fix B1802?

The estimated repair cost for B1802 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat