B1928 Scion Code - Short To Positive In Rear Pretensioner Squib LH Circuit
Quick Answer
The Rear Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and the Seat Outer Belt Assembly Left (LH). Common causes include Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH), Seat Outer Belt Assembly Left (LH) harness is open or shorted, Seat Outer Belt Assembly Left (LH) 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
- B1928 Scion indicates Short To Positive In Rear Pretensioner Squib LH Circuit.
- Common causes
- Common causes include Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH), Seat Outer Belt Assembly Left (LH) harness is open or shorted, Seat Outer Belt Assembly Left (LH) 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 B1928 Scion Description
What are the Possible Causes of the DTC B1928 Scion?
- Faulty Seat Outer Belt Assembly Left (LH) (Rear Pretensioner Squib LH)
- Seat Outer Belt Assembly Left (LH) harness is open or shorted
- Seat Outer Belt Assembly Left (LH) circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1928 Scion?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1928 Scion 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 B1928 Scion Code
1. What does the OBDII code B1928 mean in a Scion?
Code B1928 indicates a short to positive in the rear pretensioner squib left-hand (LH) circuit, which is part of the airbag system.
2. What are the common symptoms of code B1928 in a Scion?
Symptoms include an illuminated airbag warning light and possible failure of the rear seatbelt pretensioner system to deploy properly in a collision.
3. What causes code B1928 in a Scion?
Common causes include damaged wiring, a short circuit in the pretensioner squib LH circuit, or a faulty seatbelt pretensioner.
4. How can I diagnose code B1928 in a Scion?
Use an OBDII scanner to confirm the code, then visually inspect the wiring and connectors in the rear pretensioner squib LH circuit for damage or signs of a short.
5. Can code B1928 be triggered by a faulty airbag control module?
Yes, a malfunctioning airbag control module can sometimes cause this code, though wiring issues are more common.
6. Is it safe to drive a Scion with code B1928?
While the vehicle may still be drivable, the airbag system may not function properly, posing a safety risk in the event of an accident.
7. How do I fix code B1928 in a Scion?
Repairs may involve replacing damaged wiring, connectors, or the rear seatbelt pretensioner. In some cases, the airbag control module may need servicing or replacement.
8. How expensive is it to repair code B1928 in a Scion?
Costs can vary depending on the specific issue, but repairs generally involve diagnosing and replacing faulty components, which may range from $100 to $500 or more.
9. Can a DIY mechanic fix code B1928 in a Scion?
Skilled DIY mechanics can attempt repairs by inspecting and replacing damaged wiring or components, but working on airbag systems requires caution to avoid accidental deployment.
10. Will clearing the code B1928 fix the problem in a Scion?
Clearing the code will not fix the underlying issue. The problem must be addressed to prevent the code from reappearing.
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