B0104 — Sensor Cleaning Air Blower Actuator A Control Relay

Q: "Can I drive with this code?"

"It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon."

Q: "Will this code clear itself?"

"Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first."

Q: "How do I find the exact cause?"

"A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component."

What Does B0104 Mean?

B0104 is a diagnostic trouble code indicating: Sensor Cleaning Air Blower Actuator A Control Relay. This code relates to the body electrical system. It has been reported in NHTSA complaints across 2 different vehicle models.

Symptoms of B0104

⚠️ Airbag warning light on

Common Causes

🔍 Sensor or control module malfunction

B0104 Reports by Year

2014

1

2012

1

2010

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"SRS: SERVICE AIR BAG LIGHT ON; SRS SCANNER GAVE CODES B0026; B0043; B0044; B0084; B0100; AND B0104. FOUND TECHNICAL SERVICE BULLETINS POSSIBLY RELATED TO MY SPECIFIC VEHICLE (TSB#050941001; NHTSA#10013456) AND (TSB#PIT-4662; NHTSA#10026744). CALLED GMC SERVICE CENTER; THEY CLAIMED UNABLE TO ASSIST. "
— Gmc Yukon owner, 10/22/2010

"WHEN I GOT IN THE TRUCK TO GO TO WORK, AIRBAG WARNING LIGHT ALONG WITH THE DIC NOTIFICATION WHERE ON. WITH A OSB II READER, GOT A CODE OR "B0104 FRONT RIGHT SENOR REPLACE". REPLACED THE SENOR AT OWNERS EXPENSE. WITH NEW PART INSTALLED THE WARNING LIGHT AND DIC MESSAGE CLEARED. *TR"
— Chevrolet Silverado owner, 10/24/2014

"THE FRONT END AIR BAG SENSOR #2 (B0104) GAVE OUT ALONG WITH THE TIRE PRESSURE MONITORING SENSOR (C0760-LR). *TR"
— Gmc Yukon owner, 03/13/2012

Source: NHTSA Complaints Database

Most Reported Vehicles for B0104

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	GMC YUKON
2	CHEVROLET SILVERADO

B0104 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

GMC YUKON

2 NHTSA reports · Peak: 2005

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 Test the relevant sensor(s) with a multimeter before replacing
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

B0104: Sensor Cleaning Air Blower Actuator A Control Relay