OBD Guide
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B1199

Left Side Front Curtain Air Bag Module Voltage Short

B1199 is an OBD-II diagnostic trouble code meaning: Left Side Front Curtain Air Bag Module Voltage Short. Common causes: wiring harness damage, side curtain airbag malfunction. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • The Security System (SRS) indicator light is on.
  • The side curtain airbags may not deploy in a crash.
  • Possible false alarms of the system

Causes

  • Wiring harness damage
  • Side curtain airbag malfunction
  • Problems with the SRS control unit
  • Short circuit in the circuit

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Visually inspect the wiring harness for damage.
  3. Check resistance and voltage in the circuit
  4. Replace damaged components (harness, curtain, control unit)
  5. Reset the error and check the system operation

Related codes

B1198B1200B1201

FAQ

What does the B1199 code mean?

B1199 is an OBD-II diagnostic trouble code that indicates: Left Side Front Curtain Air Bag Module Voltage Short

What causes a B1199 error code?

The most common causes of B1199 include: Wiring harness damage; Side curtain airbag malfunction; Problems with the SRS control unit; Short circuit in the circuit.

How do I fix a B1199 diagnostic trouble code?

To fix B1199: Diagnose the SRS system using a scanner. Visually inspect the wiring harness for damage.. Check resistance and voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1199?

Do not drive — repair immediately

How much does it cost to fix B1199?

The estimated repair cost for B1199 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat