AutoCodes – Cadillac – B0085 Cadillac

B0085 Cadillac Code - Left Front Side Impact Sensor

Quick Answer

The impact sensors are equipped on vehicles to supplement the supplemental inflatable restraint (SIR) system performance. Common causes include Faulty Left Front Side Impact Sensor, Left Front Side Impact Sensor harness is open or shorted, Left Front Side Impact Sensor 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: B0085 Cadillac indicates Left Front Side Impact Sensor.
Common causes: Common causes include Faulty Left Front Side Impact Sensor, Left Front Side Impact Sensor harness is open or shorted, Left Front Side Impact Sensor 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 4,530

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 Oct 24, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0085 Cadillac Description

The impact sensors are equipped on vehicles to supplement the supplemental inflatable restraint (SIR) system performance. The impact sensors are electronic and are not part of the deployment loops, but instead provide inputs to the Inflatable Restraint Sensing and Diagnostic Module (SDM). The impact sensors can assist in determining the severity of some frontal and side collisions. The Inflatable Restraint Sensing and Diagnostic Module use the input from the impact sensors to assist in determining the severity of a collision, further supporting air bag deployment. If the Inflatable Restraint Sensing and Diagnostic Module determines a deployment is warranted, the Inflatable Restraint Sensing and Diagnostic Module will cause current to flow through the deployment loops deploying the air bags.

OBDII Code B0085 Cadillac - Left Front Side Impact Sensor - AutoCodes.com — B0085 Cadillac Code - Left Front Side Impact Sensor

What does this mean?

What are the Possible Causes of the DTC B0085 Cadillac?

Faulty Left Front Side Impact Sensor
Left Front Side Impact Sensor harness is open or shorted
Left Front Side Impact Sensor circuit poor electrical connection
Faulty Inflatable Restraint Sensing and Diagnostic Module (SDM)

How to Fix the DTC B0085 Cadillac?

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

B0085:02 Left Front Side Impact Sensor Short to Ground
B0085:05 Left Front Side Impact Sensor High Voltage/Open
B0085:0F Left Front Side Impact Sensor Signal Erratic
B0085:39 Left Front Side Impact Sensor Internal Malfunction
B0085:3A Left Front Side Impact Sensor Incorrect Component Installed
B0085:71 Left Front Side Impact Sensor Invalid Data

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0085 Cadillac 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 B0085 Cadillac code?

Need more information on how to fix the B0085 Cadillac code? Get Access to Factory Service Manuals

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Get the B0085 Cadillac 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 B0085 Cadillac Code

1. What are the common symptoms of OBDII code B0085 in a Cadillac related to the Left Front Side Impact Sensor?

The common symptoms include the airbag warning light being illuminated on the dashboard and a potential message indicating a fault with the left front side impact sensor.

2. What are some possible causes of OBDII code B0085 in a Cadillac?

The code B0085 can be triggered by issues such as a malfunctioning left front side impact sensor, wiring problems, or a faulty airbag control module.

3. How can I diagnose the cause of OBDII code B0085 related to the Left Front Side Impact Sensor in my Cadillac?

Diagnosing the issue typically involves using a diagnostic scan tool to read the code, inspecting the wiring and connections around the left front side impact sensor, and testing the sensor itself for proper functionality.

4. Can I continue driving my Cadillac with OBDII code B0085 present?

It is not recommended to drive your Cadillac with the code B0085 active, as it indicates a potential issue with the left front side impact sensor, which is crucial for the proper functioning of the airbag system.

5. Is it safe to attempt repairs for OBDII code B0085 in a Cadillac on my own?

While some basic inspections and checks can be done by DIY enthusiasts, it is recommended to have a qualified mechanic diagnose and repair the issue related to the left front side impact sensor to ensure proper and safe functioning of the airbag system.

6. What are some repair tips for addressing OBDII code B0085 in a Cadillac?

Repair tips may include checking and securing the wiring connections around the left front side impact sensor, replacing the sensor if found faulty, and resetting the airbag system after repairs are completed.

7. Are there any recalls or technical service bulletins related to OBDII code B0085 in Cadillacs?

It's advisable to check with a Cadillac dealership or the manufacturer's website to see if there are any recalls or technical service bulletins related to the specific issue of OBDII code B0085 and the left front side impact sensor.

8. How much does it typically cost to repair OBDII code B0085 in a Cadillac?

The cost of repairing OBDII code B0085 can vary depending on the underlying cause of the issue, but it may involve expenses for parts replacement, labor costs, and diagnostic fees.

9. Can OBDII code B0085 in a Cadillac be intermittent?

Yes, the code B0085 related to the left front side impact sensor can sometimes be intermittent, with the warning light coming on and off sporadically. However, it is crucial to address the issue promptly to ensure the proper functioning of the airbag system.

10. How long does it usually take to repair OBDII code B0085 in a Cadillac?

The repair time for OBDII code B0085 can vary based on the specific cause of the issue and the complexity of the repair process. It is recommended to consult with a mechanic for a more accurate estimate of the repair timeline.