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Engine-Codes – Generic – B0021:0E

B0021:0E Code - Passenger Seat Side Air Bag Deployment Loop Low Resistance

Quick Answer

The B0021:0E code indicates that there is a low resistance in the passenger seat side airbag deployment loop. Common causes include Damaged wiring in the airbag deployment loop, Faulty passenger seat airbag sensor, Malfunctioning airbag 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
B0021:0E indicates Passenger Seat Side Air Bag Deployment Loop Low Resistance.
Common causes
Common causes include Damaged wiring in the airbag deployment loop, Faulty passenger seat airbag sensor, Malfunctioning airbag 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code B0021:0E Description

The B0021:0E code indicates that there is a low resistance in the passenger seat side airbag deployment loop. This system is crucial for the proper functioning of the passenger side airbag, which is designed to deploy in the event of a collision to provide additional protection for the passenger. The low resistance in the deployment loop can prevent the airbag from deploying correctly or at all, increasing the risk of injury to the passenger in the event of an accident.

OBDII Code B0021:0E - Passenger Seat Side Air Bag Deployment Loop Low Resistance
B0021:0E Code - Passenger Seat Side Air Bag Deployment Loop Low Resistance

Common Causes of B0021:0E

  1. Damaged wiring in the airbag deployment loop
  2. Faulty passenger seat airbag sensor
  3. Malfunctioning airbag module
  4. Defective passenger side airbag
  5. Corrosion or poor connections in the airbag system components

Symptoms of B0021:0E

  1. Airbag warning light illuminated on the dashboard
  2. Failure of the passenger side airbag to deploy during a collision
  3. Diagnostic trouble code (DTC) B0021:0E stored in the vehicle's computer
  4. Intermittent issues with the passenger side airbag system

How to Fix B0021:0E

  1. Begin by diagnosing the specific cause of the low resistance in the passenger seat side airbag deployment loop using a scan tool to retrieve the DTCs and pinpoint the issue.
  2. Inspect the wiring harness and connections in the airbag deployment loop for any signs of damage, corrosion, or poor connections. Repair or replace any damaged components as needed.
  3. Test the passenger seat airbag sensor to ensure it is functioning correctly. Replace the sensor if it is faulty.
  4. Check the airbag module for any malfunctions and replace it if necessary.
  5. Finally, clear the diagnostic trouble code from the vehicle's computer and test the passenger side airbag system to ensure it is functioning properly.

Cost to Fix B0021:0E

The cost of repairing a low resistance in the passenger seat side airbag deployment loop can vary depending on the specific cause of the issue and the cost of any necessary parts. On average, the repair for this issue can range from $200 to $500, including parts and labor. However, it is important to note that labor rates at auto repair shops can vary, so it is recommended to check with local shops for a more accurate estimate. Additionally, the cost may be higher if the airbag module or sensor needs to be replaced.

What does this mean?

Tech Notes for B0021:0E

B0021:01 Passenger Seat Side Air Bag Deployment Loop Short to Battery

B0021:02 Passenger Seat Side Air Bag Deployment Loop Short to Ground

B0021:04 Passenger Seat Side Air Bag Deployment Loop Open

B0021:0D Passenger Seat Side Air Bag Deployment Loop High Resistance

B0021:0E Passenger Seat Side Air Bag Deployment Loop Low Resistance

Need more information about the B0021:0E code?

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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 B0021:0E Code

1. What does OBDII code B0021:0E mean?

Code B0021:0E indicates a problem with the passenger seat side airbag deployment loop, specifically that the resistance in the circuit is lower than the manufacturer's specifications.

2. What are the common symptoms of code B0021:0E?

Symptoms may include an illuminated airbag warning light on the dashboard and the potential deactivation of the passenger side airbag system.

3. What causes code B0021:0E to appear?

Common causes include damaged or corroded wiring, loose or faulty connectors, a short circuit, or a defective passenger seat side airbag module.

4. Is it safe to drive with code B0021:0E active?

Driving with this code is not recommended, as the airbag system may not function properly in the event of a collision, increasing the risk of injury.

5. How can I diagnose the cause of code B0021:0E?

Diagnosis involves inspecting the wiring and connectors for damage or corrosion, checking the resistance of the airbag circuit with a multimeter, and using a scan tool to clear the code and see if it reappears.

6. Can I fix code B0021:0E myself?

If you have automotive electrical experience, you may be able to repair damaged wiring or connectors. However, due to the complexity and safety concerns of airbag systems, professional repair is often recommended.

7. How much does it cost to repair code B0021:0E?

Repair costs vary depending on the root cause, ranging from $50 to $200 for minor wiring fixes and up to $1,000 or more if the airbag module needs replacement.

8. Do I need to replace the passenger side airbag to fix code B0021:0E?

Not always. The issue may be related to wiring or connectors rather than the airbag itself. Proper diagnosis is essential to determine if replacement is necessary.

9. Can a weak car battery cause code B0021:0E?

A weak or failing battery is unlikely to directly cause this code, but voltage fluctuations could potentially affect the airbag system. Ensure the battery is in good condition during diagnosis.

10. Will clearing the code with a scan tool fix the problem?

Clearing the code without addressing the underlying issue will not fix the problem. The code is likely to reappear until the low resistance in the airbag deployment loop is resolved.

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