What are the common causes of B0029?

An open in the right curtain stage 1 squib circuit. A short to ground on the right curtain wiring. Damage at the right curtain connector after roof or trim work. A failed right curtain airbag module. A right curtain stage 1 output fault in the airbag control module.

Inspect the right curtain stage 1 squib wiring for opens and shorts. Check the right curtain connector for damage. Measure right curtain stage 1 resistance through the harness. Replace the right curtain airbag if the circuit tests open. Replace the airbag control module if the curtain output is faulty. Clear the code and retest.

B0029

Right Curtain Deployment Control 1

System: Body control (B code)
Lamp: Airbag Light
Category: Body

What it means

B0029 means Right Curtain Deployment Control 1.

Check these first

An open in the right curtain stage 1 squib circuit
A short to ground on the right curtain wiring
Damage at the right curtain connector after roof or trim work
A failed right curtain airbag module
A right curtain stage 1 output fault in the airbag control module

What to do next

Inspect the right curtain stage 1 squib wiring for opens and shorts
Check the right curtain connector for damage
Measure right curtain stage 1 resistance through the harness
Replace the right curtain airbag if the circuit tests open
Replace the airbag control module if the curtain output is faulty
Clear the code and retest

Look up another code

Code or symptom

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.