AutoCodes – Generic – B1818

B1818 Code - Short To Positive In Front Passenger Side Squib 2nd Step Circuit

Quick Answer

The Front Passenger Side Squib 2nd Step Circuit consists of the Center Airbag Sensor Assembly and the Front Passenger Airbag Assembly. Common causes include Instrument panel wire, Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib 2nd Step), Front Passenger Airbag Assembly harness is open or shorted. 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: B1818 indicates Short To Positive In Front Passenger Side Squib 2nd Step Circuit.
Common causes: Common causes include Instrument panel wire, Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib 2nd Step), Front Passenger Airbag Assembly harness is open or shorted.
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 7,030

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 Nov 27, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1818 Description

The Front Passenger Side Squib 2nd Step Circuit consists of the Center Airbag Sensor Assembly and the Front Passenger Airbag Assembly. 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 Front Passenger Side Squib 2nd Step Circuit.

OBDII Code B1818 - Short To Positive In Front Passenger Side Squib 2nd Step Circuit - AutoCodes.com — B1818 Code - Short To Positive In Front Passenger Side Squib 2nd Step Circuit

What does this mean?

What are the Possible Causes of the DTC B1818?

Instrument panel wire
Faulty Front Passenger Airbag Assembly (Front Passenger Side Squib 2nd Step)
Front Passenger Airbag Assembly harness is open or shorted
Front Passenger Airbag Assembly circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1818?

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 B1818 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 B1818 code?

Need more information on how to fix the B1818 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1818 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1818 Chrysler — Rear Passenger Door Ajar Circuit Short
B1818 Dodge — Rear Passenger Door Ajar Circuit Short
B1818 Jeep — Rear Passenger Door Ajar Circuit Short
B1818 Lexus — Short To Positive In Front Passenger Side Squib 2nd Step Circuit
B1818 RAM — Rear Passenger Door Ajar Circuit Short
B1818 Scion — Short To Positive In Front Passenger Side Squib 2nd Step Circuit
B1818 Toyota — Short To Positive In Front Passenger 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 B1818 Code

1. What are the common symptoms of OBDII code B1818?

- The common symptoms of OBDII code B1818 include an illuminated airbag warning light on the dashboard and potential issues with the front passenger side airbag system.

2. What does "Short To Positive In Front Passenger Side Squib 2nd Step Circuit" mean in relation to code B1818?

- This means that there is a short circuit to the positive power supply in the front passenger side airbag squib 2nd step circuit, indicating a potential wiring or component issue.

3. What are some possible causes of OBDII code B1818?

- Possible causes of code B1818 include damaged wiring or connectors in the front passenger side airbag system, a faulty airbag squib, or a problem with the airbag control module.

4. How can I diagnose OBDII code B1818?

- Diagnosing code B1818 typically involves conducting a thorough inspection of the front passenger side airbag system wiring, connectors, and components, as well as using a diagnostic scan tool to retrieve and analyze the fault codes.

5. Is it safe to drive with OBDII code B1818?

- It is not recommended to drive with OBDII code B1818 present, as it indicates a potential issue with the front passenger side airbag system, which could affect the proper deployment of the airbag in the event of a collision.

6. Can I reset OBDII code B1818 without addressing the underlying issue?

- While you can clear the code temporarily, it will likely reappear until the root cause of the problem is identified and repaired. It is essential to address the underlying issue to ensure the safety and functionality of the airbag system.

7. How can I repair OBDII code B1818?

- Repairing OBDII code B1818 involves identifying and fixing the root cause of the issue, which may include repairing or replacing damaged wiring, connectors, or components in the front passenger side airbag system.

8. Are there any common repair tips for resolving OBDII code B1818?

- Common repair tips for resolving code B1818 may include checking for any visible damage to the wiring, ensuring all connectors are securely attached, and using a multimeter to test for continuity and proper voltage in the circuit.

9. Can a DIY enthusiast fix OBDII code B1818 at home?

- While some DIY enthusiasts may have the skills and tools to diagnose and repair OBDII code B1818, it is recommended to consult a professional technician or mechanic for proper diagnosis and repair of the airbag system.

10. How much does it typically cost to repair OBDII code B1818 at a repair shop?

- The cost of repairing OBDII code B1818 at a repair shop can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. Costs may include diagnostic fees, labor costs, and the price of any necessary parts.