AutoCodesScion – B1852 Scion

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

Quick Answer

The Rear Side Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Rear Seat Side Airbag Assembly Right (RH). Common causes include Faulty Rear Seat Side Airbag Assembly Right (RH) (Rear Side Squib Right Circuit), Rear Seat Side Airbag Assembly Right Left harness is open or shorted, Rear Seat Side Airbag Assembly Right Left 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
B1852 Scion indicates Short To Ground In Rear Side Squib Right Circuit.
Common causes
Common causes include Faulty Rear Seat Side Airbag Assembly Right (RH) (Rear Side Squib Right Circuit), Rear Seat Side Airbag Assembly Right Left harness is open or shorted, Rear Seat Side Airbag Assembly Right Left 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.
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Code Popularity 892
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 07, 2019
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Code B1852 Scion Description

The Rear Side Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Rear Seat Side Airbag Assembly Right (RH). This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Rear Side Squib Right Circuit.
OBDII Code B1852 Scion - Short To Ground In Rear Side Squib Right Circuit - AutoCodes.com
B1852 Scion Code - Short To Ground In Rear Side Squib Right Circuit

What are the Possible Causes of the DTC B1852 Scion?

  • Faulty Rear Seat Side Airbag Assembly Right (RH) (Rear Side Squib Right Circuit)
  • Rear Seat Side Airbag Assembly Right Left harness is open or shorted
  • Rear Seat Side Airbag Assembly Right Left circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1852 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 B1852 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.

Need more information about the B1852 Scion code?

Need more information on how to fix the B1852 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1852 Scion code diagnosed by a professional: Find a repair shop in your area

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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