B0019:04 Code - Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open
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
- B0019:04 indicates Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open.
- 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 B0019:04 Description
What are the Possible Causes of the DTC B0019:04?
- 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 B0019:04?
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
B0019:02 Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Ground
B0019:04 Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open
B0019:0D Passenger Instrument Panel Air Bag Deployment Loop Stage 1 High Resistance
B0019:0E Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Low Resistance
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0019:04 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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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 B0019:04 Code
1. What does the OBDII code B0019:04 mean?
This code indicates an open circuit in the passenger instrument panel airbag deployment loop stage 1, meaning the airbag may not deploy properly in an accident.
2. What are the symptoms of code B0019:04?
Common symptoms include the airbag warning light staying illuminated and the passenger airbag potentially being inoperative.
3. What causes code B0019:04?
Possible causes include damaged wiring or connectors, a faulty airbag module, or poor electrical connections in the passenger airbag circuit.
4. Is it safe to drive with code B0019:04?
Driving with this code is not recommended as the passenger airbag may fail to deploy in an accident, compromising safety.
5. How can I diagnose code B0019:04?
Use a scan tool to confirm the code, then inspect the wiring, connectors, and airbag module for signs of damage or disconnection.
6. Can a loose connector cause code B0019:04?
Yes, a loose or corroded connector in the passenger airbag circuit can interrupt the electrical connection and trigger this code.
7. How do I fix code B0019:04?
Repairs may involve reconnecting or replacing damaged wiring, cleaning corroded connectors, or replacing the airbag module if it’s faulty.
8. Can clearing the code B0019:04 fix the problem?
Clearing the code without addressing the underlying issue will not fix the problem, and the code will likely return.
9. Do I need to replace the airbag module for code B0019:04?
Not necessarily; first inspect the wiring and connectors. Replace the airbag module only if diagnostics confirm it is faulty.
10. How much does it cost to repair code B0019:04?
Repair costs vary depending on the cause, ranging from $50 for simple wiring repairs to over $1,000 for airbag module replacement.
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