Engine-Codes - Gmc - B0085 GMC

B0085 GMC Code - Left Front Side Impact Sensor

- Code Popularity: 2,342 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B0085 GMC?

  • 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 B0085 GMC Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Code B0085 GMC 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 B0085 GMC?

Labor: 1.0

The cost to diagnose the B0085 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Does your car have Safety Recalls? → Check here

|What are Code B0085 GMC Possible Symptoms?

  • Air Bag Warning Light ON

|What Does the B0085 GMC Code Mean?

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.

Left Front Side Impact Sensor

|Need more Information on the B0085 GMC Code?

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

|Need Help with the B0085 GMC Code?

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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.