AutoCodes – Generic – B1812

B1812 Code - Short To Ground In Driver Side Squib 2nd Step Circuit

Quick Answer

The Driver Side Squib 2nd Step Circuit consists of the Center Airbag Sensor Assembly, the Spiral Cable, and the Steering Pad. Common causes include Instrument panel wire, Faulty Spiral cable, Faulty Steering Pad (Driver Side Squib 2nd Step). 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: B1812 indicates Short To Ground In Driver Side Squib 2nd Step Circuit.
Common causes: Common causes include Instrument panel wire, Faulty Spiral cable, Faulty Steering Pad (Driver Side Squib 2nd Step).
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 5,124

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 09, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B1812 Description

The Driver Side Squib 2nd Step Circuit consists of the Center Airbag Sensor Assembly, the Spiral Cable, and the Steering Pad. The circuit signals the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is recorded when a malfunction is detected in the Driver Side Squib 2nd Step Circuit.

OBDII Code B1812 - Short To Ground In Driver Side Squib 2nd Step Circuit - AutoCodes.com — B1812 Code - Short To Ground In Driver Side Squib 2nd Step Circuit

What does this mean?

What are the Possible Causes of the DTC B1812?

Instrument panel wire
Faulty Spiral cable
Faulty Steering Pad (Driver Side Squib 2nd Step)
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1812?

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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1812 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 B1812 code?

Need more information on how to fix the B1812 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1812 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1812 Chrysler — Passenger Door Ajar Circuit Short
B1812 Dodge — Passenger Door Ajar Circuit Short
B1812 Jeep — Passenger Door Ajar Circuit Short
B1812 Lexus — Short To Ground In Driver Side Squib 2nd Step Circuit
B1812 RAM — Passenger Door Ajar Circuit Short
B1812 Scion — Short To Ground In Driver Side Squib 2nd Step Circuit
B1812 Toyota — Short To Ground In Driver Side Squib 2nd Step Circuit

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 B1812 Code

1. What are the common symptoms of OBDII code B1812 (Short To Ground In Driver Side Squib 2nd Step Circuit)?

- Common symptoms include an illuminated airbag warning light on the dashboard, non-functioning airbag system, and potential deployment issues in the event of a collision.

2. What can cause the OBDII code B1812 to trigger?

- The code can be triggered by a short to ground in the driver side squib 2nd step circuit, which may be caused by damaged wiring, a faulty clock spring, or a malfunctioning airbag module.

3. How serious is the OBDII code B1812?

- The B1812 code indicates a potential safety risk as it relates to the driver side airbag system. It is important to address this issue promptly to ensure the airbag system functions correctly in the event of an accident.

4. What should I do if I encounter the OBDII code B1812?

- If you encounter the B1812 code, it is recommended to have the airbag system inspected by a qualified technician to identify the specific cause of the issue and perform necessary repairs.

5. Can I drive my vehicle with the OBDII code B1812 present?

- It is not recommended to drive the vehicle with the B1812 code present, as it indicates a potential problem with the driver side airbag system. Continuing to drive the vehicle without addressing the issue may compromise safety in the event of a collision.

6. How can I repair the short to ground in the driver side squib 2nd step circuit?

- Repairing the short to ground in the driver side squib 2nd step circuit may involve replacing damaged wiring, repairing or replacing the clock spring, or replacing the airbag module, depending on the specific cause of the issue.

7. Will resetting the OBDII code B1812 resolve the issue?

- Simply resetting the B1812 code may temporarily clear the error code, but it will not fix the underlying issue causing the short to ground in the driver side squib 2nd step circuit. It is important to diagnose and repair the root cause of the problem.

8. How much does it typically cost to repair the OBDII code B1812?

- The cost of repairing the B1812 code can vary depending on the specific cause of the issue and the labor rates in your area. It is advisable to obtain a diagnosis and repair estimate from a trusted automotive professional.

9. Can I fix the OBDII code B1812 myself?

- While some DIY enthusiasts may have the skills to diagnose and repair the issue causing the B1812 code, working on the airbag system can be complex and dangerous. It is recommended to seek assistance from a qualified technician for this type of repair.

10. How can I prevent the OBDII code B1812 from recurring in the future?

- To prevent the B1812 code from recurring, it is essential to address any underlying issues promptly, perform regular maintenance on the airbag system, and avoid any actions that may cause damage to the wiring or components in the driver side squib 2nd step circuit.