Passenger Frontal Airbag Circuit Resistance High
What does B0019 mean?
The B0019 code means the vehicle's onboard diagnostic system has detected: Passenger Frontal Airbag Circuit Resistance High. This is a critical severity code.
Common Symptoms
- SRS warning light illuminated
- Passenger airbag high resistance fault
- Airbag system disabled
- Warning chime on ignition
- Safety inspection failure
Probable Causes (Ranked by Likelihood)
- Corroded passenger airbag connector Very High
- Open or high-resistance wiring in airbag circuit High
- Loose connector at SRS module Moderate
- Defective passenger airbag module Moderate
- Rodent damage to wiring behind dashboard Low
Step-by-Step Diagnostic Procedure
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Read SRS DTCs with compatible scanner
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Measure passenger airbag squib resistance at connector
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Inspect all connectors in the passenger airbag circuit for corrosion
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Check for loose or backed-out pins in SRS module connector
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Inspect wiring for rodent damage or abrasion
Frequently Asked Questions
Can rodents cause this code?
Yes. Rodents sometimes chew on vehicle wiring, particularly in the engine bay or behind the dashboard, which can damage the airbag circuit and cause high resistance faults.
What happens if the resistance is too high?
The SRS module will not be able to deliver enough current to fire the airbag squib, meaning the passenger airbag will not deploy in a crash.
How much does it cost to fix corroded connectors?
If only connector cleaning or replacement is needed, the repair may cost $100-$300. If the airbag module itself is faulty, costs can reach $600-$900.