B0020 Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2
Quick Answer
During a side or frontal crash of sufficient force the inflatable restraint Sensing and Diagnostic Module (SDM) will allow current to flow through the deployment loop in order to deploy an air bag or pretensioner. Common causes include Faulty Passenger Instrument Panel Air Bag, Passenger Instrument Panel Air Bag harness is open or shorted, Passenger Instrument Panel Air Bag circuit poor electrical connection. 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
- B0020 indicates Passenger Instrument Panel Air Bag Deployment Loop Stage 2.
- Common causes
- Common causes include Faulty Passenger Instrument Panel Air Bag, Passenger Instrument Panel Air Bag harness is open or shorted, Passenger Instrument Panel Air Bag circuit poor electrical connection.
- 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.
Code B0020 Description
What are the Possible Causes of the DTC B0020?
- Faulty Passenger Instrument Panel Air Bag
- Passenger Instrument Panel Air Bag harness is open or shorted
- Passenger Instrument Panel Air Bag circuit poor electrical connection
- Faulty Sensing and Diagnostic Module (SDM)
How to Fix the DTC B0020?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
B0020:02 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Ground
B0020:04 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Open
B0020:0D Passenger Instrument Panel Air Bag Deployment Loop Stage 2 High Resistance
B0020:0E Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Low Resistance
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0020 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B0020 Buick — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
- B0020 Cadillac — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
- B0020 Chevrolet — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
- B0020 Ford — Left Side Airbag Deployment Control
- B0020 GMC — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
- B0020 Lincoln — Left Side Airbag Deployment Control
- B0020 Mercury — Left Side Airbag Deployment Control
- B0020 Pontiac — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
- B0020 Saturn — Passenger Instrument Panel Air Bag Deployment Loop Stage 2
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.
Frequently Asked Questions about B0020 Code
1. What are common symptoms of OBDII code B0020?
The common symptoms of OBDII code B0020 include an illuminated airbag warning light on the dashboard and a possible message indicating an issue with the passenger instrument panel airbag system.
2. What does OBDII code B0020 mean?
OBDII code B0020 indicates a problem with the Passenger Instrument Panel Air Bag Deployment Loop Stage 2, signaling a fault in the airbag system's deployment loop circuit.
3. What are possible causes of OBDII code B0020?
Possible causes of OBDII code B0020 include a faulty passenger instrument panel airbag deployment loop stage 2 circuit, damaged wiring or connectors, or a malfunctioning airbag deployment loop sensor.
4. How can I diagnose OBDII code B0020?
To diagnose OBDII code B0020, a professional technician can use a diagnostic scanner to retrieve the specific fault code, inspect the wiring and connectors related to the passenger instrument panel airbag system, and test the airbag deployment loop stage 2 sensor for proper functionality.
5. Can I still drive my vehicle with OBDII code B0020 present?
It is not recommended to drive your vehicle with OBDII code B0020 present, as it indicates a potential issue with the passenger airbag system, which is crucial for occupant safety in the event of a collision.
6. How can OBDII code B0020 be repaired?
Repairing OBDII code B0020 typically involves fixing the underlying issue causing the fault, which may include repairing or replacing damaged wiring or connectors, addressing sensor malfunctions, or resetting the airbag system after resolving the problem.
7. Is it safe to reset the OBDII code B0020 without fixing the underlying issue?
It is not safe to simply reset OBDII code B0020 without addressing the underlying problem, as doing so may compromise the proper function of the passenger instrument panel airbag system and potentially put occupants at risk in the event of an accident.
8. Will OBDII code B0020 cause the airbags to deploy unexpectedly?
OBDII code B0020 itself will not cause the airbags to deploy unexpectedly. However, the presence of this fault code indicates a potential issue with the airbag deployment loop stage 2, which could affect the airbags' proper deployment in the event of a collision.
9. Can a DIY enthusiast repair OBDII code B0020 at home?
Repairing OBDII code B0020 may require specialized knowledge and tools, so it is recommended to have a professional technician diagnose and repair the issue to ensure the proper functioning of the passenger instrument panel airbag system.
10. How much does it typically cost to repair OBDII code B0020?
The cost of repairing OBDII code B0020 can vary depending on the specific cause of the fault, the extent of the damage, and the labor rates in your area. It is advisable to obtain estimates from qualified repair shops for an accurate cost assessment.
Discuss the causes and fixes for B0020 OBDII Code
-
I have 2014 Nissan Altima . The airbag light is coming on and staying on and solid. I had independent shop
check out. Code B0020 LH side air barespondg module past code. Checked all connections and are good. Where do I go from hear? Has this been a complaint with others? Please respond with help -
If all the connectors are good, then the most likely cause of the problem is the Driver Seat Side Air Bag Module (Seat Air Bag Driver Side). You have to remove the seat cover to access the Air Bag.
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