OBD Guide
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B1146

Right Side Curtain Air Bag Module Short

B1146 is an OBD-II diagnostic trouble code meaning: Right Side Curtain Air Bag Module Short. Common causes: short circuit in wiring, damaged curtain airbag module. Estimated repair cost: $167–444.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–444 (est.)

Symptoms

  • SRS (airbag) light is on
  • Lack of system response during testing
  • Error message on the dashboard

Causes

  • Short circuit in wiring
  • Damaged curtain airbag module
  • Oxidized or damaged contacts
  • Wiring harness fault
  • Problems with the SRS control unit

How to Fix

  1. Diagnostics with an OBD-II scanner to confirm the code
  2. Visual inspection of wiring and contacts
  3. Checking the Curtain Airbag Circuit Resistance
  4. Replacing damaged wires or module
  5. Resetting the error and testing the system

Related codes

B1145B1147B1000

FAQ

What does the B1146 code mean?

B1146 is an OBD-II diagnostic trouble code that indicates: Right Side Curtain Air Bag Module Short

What causes a B1146 error code?

The most common causes of B1146 include: Short circuit in wiring; Damaged curtain airbag module; Oxidized or damaged contacts; Wiring harness fault.

How do I fix a B1146 diagnostic trouble code?

To fix B1146: Diagnostics with an OBD-II scanner to confirm the code. Visual inspection of wiring and contacts. Checking the Curtain Airbag Circuit Resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1146?

Limited driving only, diagnose soon

How much does it cost to fix B1146?

The estimated repair cost for B1146 is $167–444. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat