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Engine-Codes – Scion – B1852 Scion

B1852 Scion Code - Short To Ground In Rear Side Squib Right Circuit

Quick Answer

The B1852 Scion code indicates a "Short To Ground In Rear Side Squib Right Circuit" in the vehicle's airbag system. Common causes include Damaged wiring or connectors in the rear side squib right circuit, Short circuit due to water intrusion or corrosion, Faulty rear side squib right component. 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
B1852 Scion indicates Short To Ground In Rear Side Squib Right Circuit.
Common causes
Common causes include Damaged wiring or connectors in the rear side squib right circuit, Short circuit due to water intrusion or corrosion, Faulty rear side squib right component.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B1852 Scion Description

The B1852 Scion code indicates a "Short To Ground In Rear Side Squib Right Circuit" in the vehicle's airbag system. The squib is a component of the airbag system that is responsible for deploying the airbag in the event of a collision. A short to ground in this circuit means that there is an unintended connection between the wiring of the rear side squib right circuit and the vehicle's chassis or ground. This can prevent the airbag from deploying properly in the event of a crash, compromising the safety of the vehicle occupants.

OBDII Code B1852 Scion - Short To Ground In Rear Side Squib Right Circuit
B1852 Scion Code - Short To Ground In Rear Side Squib Right Circuit

Common Causes of B1852 Scion

  1. Damaged wiring or connectors in the rear side squib right circuit.
  2. Short circuit due to water intrusion or corrosion.
  3. Faulty rear side squib right component.
  4. Issues with the airbag control module.
  5. Electrical issues in the vehicle's wiring harness.

Symptoms of B1852 Scion

  1. Airbag warning light illuminated on the dashboard.
  2. Inability to deploy the airbag in a collision.
  3. Fault codes related to the airbag system stored in the vehicle's computer.
  4. Loss of communication with the airbag module.

How to Fix B1852 Scion

  1. Begin by diagnosing the specific cause of the short to ground in the rear side squib right circuit using a diagnostic scanner.
  2. Inspect the wiring and connectors in the circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the rear side squib right component for proper functionality. Replace if faulty.
  4. Check the airbag control module for any issues and replace if necessary.
  5. Clear the fault codes from the vehicle's computer and perform a test to ensure that the airbag system is functioning correctly.

Cost to Fix B1852 Scion

The cost of repairing a short to ground in the rear side squib right circuit can vary depending on the specific cause of the issue and the extent of the damage. On average, the repair for this type of airbag system fault can range from $200 to $500, including parts and labor. However, it is essential to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additionally, the cost of parts and the complexity of the repair can also impact the overall cost. It is recommended to consult with a professional mechanic to get an accurate estimate for the repair.

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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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1852 Scion Code

1. What does the OBDII code B1852 mean on a Scion?

The code B1852 indicates a "Short to Ground in Rear Side Squib Right Circuit," which is part of the airbag system responsible for deploying the right rear side airbag.

2. What are the common symptoms of the B1852 code in a Scion?

Typical symptoms include an illuminated airbag warning light, the airbag system being deactivated, and the right rear side airbag failing to deploy in an accident.

3. What causes the B1852 code to appear?

The most common causes include damaged wiring, a short to ground in the circuit, a faulty airbag control module, or a defective right rear side airbag squib.

4. How is the B1852 code diagnosed?

Technicians use a scan tool to confirm the code, inspect the wiring and connectors for damage, and test the squib circuit for continuity and resistance.

5. Can I drive my Scion with the B1852 code active?

While the vehicle may still be drivable, the airbag system may not function properly, which poses a safety risk in the event of an accident.

6. How do you fix the B1852 code on a Scion?

Repairs may involve replacing or repairing damaged wiring, ensuring proper connections, or replacing the airbag squib or control module if necessary.

7. How much does it cost to fix the B1852 code in a Scion?

Repair costs vary depending on the issue but can range from $100 for minor wiring repairs to $600 or more for parts like the airbag control module or squib.

8. Can a short to ground in the squib circuit cause other problems?

Yes, it can prevent the airbag system from functioning correctly and may trigger additional airbag-related codes if not addressed.

9. How can I prevent the B1852 code from occurring?

Regularly inspect the vehicle’s wiring and connectors for wear or damage, especially after an accident or during routine maintenance.

10. Do I need a professional to fix the B1852 code?

Due to the complexity and safety-critical nature of the airbag system, it is highly recommended to have a qualified technician handle the diagnosis and repairs.

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