AutoCodeFix
🔍
Airbag / SRSCritical⚠️ Professional Recommended

B0020

Driver Side Deployment Control (Circuit/Performance)

A fault has been detected in the driver side-impact airbag deployment circuit.

SeverityCritical
CategoryAirbag / SRS
Est. Repair Cost$150-$500
Code TypeBody
DIY RepairProfessional

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Scan and clear SRS codes
  • Step 2:Inspect side airbag wiring under seat
  • Step 3:Test side impact sensor resistance
  • Step 4:Replace faulty sensor or module
💡 Pro Tip: Never attempt to test airbag circuits with a standard multimeter set to resistance mode - use a dedicated airbag scan tool to avoid accidental deployment.

Repair Cost Estimate

Full Repair Estimate
$150-$500
DIY Possible?
PRO
Severity
Critical

Frequently Asked Questions

What does OBD2 code B0020 mean?+
B0020 stands for Driver Side Deployment Control (Circuit/Performance). A fault has been detected in the driver side-impact airbag deployment circuit.
What causes code B0020?+
Damaged side airbag wiring; Corroded connector under seat; Faulty side impact sensor; SRS module fault
How do I fix code B0020?+
Scan and clear SRS codes; Inspect side airbag wiring under seat; Test side impact sensor resistance; Replace faulty sensor or module
How much does it cost to fix B0020?+
Estimated repair cost for B0020 is $150-$500.
Is B0020 DIY-friendly?+
B0020 typically requires professional equipment and a qualified mechanic.

AI Diagnosis

Related Codes

B0010Passenger Frontal Stage 1 Squib Circuit Resistance Low
Critical
B0051Side Impact Sensor Left Front — Circuit Low
Critical
B0001Driver Frontal Stage 1 Squib Circuit Resistance Low
Critical
B0002Driver Frontal Stage 1 Squib Circuit Resistance High
Critical
B0030Passenger Side Deployment Control (Circuit/Performance)
Critical
B0040Driver Side Pole Deployment Control (Circuit/Performance)
Critical