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B0020 Chevrolet Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

- Code Popularity: 16,535 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B0020 Chevrolet?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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)
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How to Fix the DTC B0020 Chevrolet?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B0020:01 Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Battery
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

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0020 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Air Bag Warning Light ON

Code B0020 Chevrolet Description

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. There are 2 shorting bars that will short together control circuits when the connector is disconnected. This will help to prevent unwanted deployment of the air bag or pretensioner during servicing.

OBDII Code B0020 Chevrolet - Passenger Instrument Panel Air Bag Deployment Loop Stage 2 - AutoCodes.com
B0020 Chevrolet Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 2

Need More Information on the Code?

Need more information on how to fix the B0020 Chevrolet code? Get Access to Factory Service Manuals

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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.

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