B1994 Code - Driver Side Side Mount Airbag Circuit Open

Quick Answer

The B1994 diagnostic trouble code indicates that there is an open circuit in the driver side side mount airbag system. Common causes include Loose or corroded electrical connections in the airbag circuit, Damage to the wiring harness leading to the driver side airbag, Faulty airbag control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means

B1994 indicates Driver Side Side Mount Airbag Circuit Open.

Common causes

Common causes include Loose or corroded electrical connections in the airbag circuit, Damage to the wiring harness leading to the driver side airbag, Faulty airbag control module.

Severity

High - diagnose this code as soon as possible.

Can I drive?

Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
• Comments
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Common Causes of B1994

Symptoms of B1994

How to Fix B1994

Cost to Fix B1994

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Code B1994 Information for Specific Makes

• B1994 Chrysler — Left Power Sliding Door Position Sensor 1 Circuit Performance
• B1994 Dodge — Left Power Sliding Door Position Sensor 1 Circuit Performance
• B1994 Ford — Driver Side Side Mount Airbag Circuit Open
• B1994 Jeep — Left Power Sliding Door Position Sensor 1 Circuit Performance
• B1994 Lincoln — Driver Side Side Mount Airbag Circuit Open
• B1994 Mercury — Driver Side Side Mount Airbag Circuit Open
• B1994 RAM — Left Power Sliding Door Position Sensor 1 Circuit Performance

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

• Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
• Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1994 Code

1. What are the common symptoms of OBDII code B1994 - Driver Side Side Mount Airbag Circuit Open?

- The common symptoms include the airbag warning light on the dashboard illuminating and possible non-deployment of the driver side airbag during an accident.

2. What are the possible causes of OBDII code B1994?

- The code B1994 can be triggered by issues such as a faulty driver side airbag module, damaged wiring harness, loose connections, or a malfunctioning airbag control module.

3. How can I diagnose the Driver Side Side Mount Airbag Circuit Open issue?

- To diagnose the issue, you can use an OBDII scanner to read the specific trouble code B1994. Additionally, a visual inspection of the airbag system components and wiring for any visible damage or loose connections is recommended.

4. Can I continue driving with OBDII code B1994 present?

- It is not recommended to continue driving with the B1994 code active, as it indicates a problem with the driver side airbag system, which may affect its functionality in the event of a collision.

5. How can I repair OBDII code B1994 - Driver Side Side Mount Airbag Circuit Open?

- Repairing the B1994 code typically involves identifying and fixing the root cause of the circuit open, which may include replacing a faulty airbag module, repairing damaged wiring, or addressing any loose connections.

6. Is it safe to reset the OBDII code B1994 without fixing the underlying issue?

- It is not safe to reset the B1994 code without addressing the underlying problem, as it may compromise the proper functioning of the driver side airbag in the event of an accident.

7. Can a DIY enthusiast fix OBDII code B1994 at home?

- While some basic checks like inspecting for visible damage or loose connections can be done at home, diagnosing and repairing the B1994 code may require specialized tools and expertise best handled by a professional mechanic.

8. How much does it cost to repair OBDII code B1994?

- The cost of repairing the B1994 code can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to obtain quotes from automotive repair shops for an accurate estimate.

9. Will fixing OBDII code B1994 require replacement of the driver side airbag?

- In some cases, fixing the B1994 code may involve replacing the driver side airbag if it is found to be faulty. However, the exact repair needed will depend on the diagnostic findings.

10. How long does it take to repair OBDII code B1994?

- The repair time for the B1994 code can vary depending on the complexity of the issue, availability of parts, and the expertise of the mechanic. It is advisable to consult with a professional for a more accurate timeframe.