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Engine-Codes – Generic – B1065

B1065 Code - Assist Air Bag Module Open

Quick Answer

The B1065 diagnostic trouble code (DTC) indicates an issue with the Assist Air Bag Module being open. Common causes include Damaged wiring or connectors in the airbag system, Faulty Assist Air Bag Module, Malfunction in the airbag control unit. 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
B1065 indicates Assist Air Bag Module Open.
Common causes
Common causes include Damaged wiring or connectors in the airbag system, Faulty Assist Air Bag Module, Malfunction in the airbag control unit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B1065 Description

The B1065 diagnostic trouble code (DTC) indicates an issue with the Assist Air Bag Module being open. The Assist Air Bag Module is an essential component of the vehicle's airbag system, responsible for deploying the airbags in case of a collision or impact. When this module is open, it means that there is a malfunction or disruption in the circuitry or wiring of the airbag system, preventing it from properly deploying in the event of an accident. This poses a serious safety risk to the vehicle occupants, as the airbags may not deploy as intended, increasing the likelihood of injury in a crash.

OBDII Code B1065 - Assist Air Bag Module Open
B1065 Code - Assist Air Bag Module Open

Common Causes of B1065

  1. Damaged wiring or connectors in the airbag system
  2. Faulty Assist Air Bag Module
  3. Malfunction in the airbag control unit
  4. Impact or collision that may have damaged the airbag system
  5. Electrical issues in the vehicle's wiring harness

Symptoms of B1065

  1. Illumination of the airbag warning light on the dashboard
  2. Inability of the airbags to deploy in a collision
  3. Audible warning chimes indicating a problem with the airbag system
  4. Diagnostic trouble code B1065 stored in the vehicle's computer system

How to Fix B1065

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific DTCs, including B1065.
  2. Inspect the wiring and connectors in the airbag system for any damage or corrosion. Repair or replace any faulty components as needed.
  3. Test the Assist Air Bag Module and the airbag control unit for proper functionality. Replace any components that are found to be defective.
  4. Clear the DTCs from the vehicle's computer system and reset the airbag warning light on the dashboard.
  5. Perform a thorough test drive to ensure that the airbag system is functioning correctly and that the B1065 code does not reappear.

Cost to Fix B1065

The typical repair costs for addressing the B1065 code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of repairing an open Assist Air Bag Module can range from $200 to $800, including parts and labor. However, it is essential to note that the actual cost may vary based on the location of the repair shop, the vehicle make and model, and the expertise of the technicians. Additionally, the diagnosis time and labor rates at auto repair shops can range from $80 to $150 per hour, with rates potentially higher in metropolitan areas or at dealerships. It is advisable to obtain a precise estimate from a local auto repair shop to determine the exact cost of addressing the B1065 code in your vehicle.

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Code B1065 Information for Specific Makes

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 B1065 Code

What does the OBDII code B1065 mean?

The OBDII code B1065 indicates that there is an open circuit in the airbag module, which can prevent the airbag system from functioning properly.

What symptoms might I experience with code B1065?

Common symptoms include the airbag warning light illuminated on the dashboard, potential failure of the airbag system to deploy in an accident, and possible other warning lights related to the safety system.

What could cause the B1065 code to trigger?

Causes can include damaged wiring or connectors related to the airbag module, a faulty airbag module, or issues with the vehicle's body control module.

How can I diagnose the B1065 code?

To diagnose the B1065 code, check for any visible damage to the wiring and connectors, use a multimeter to test the continuity of the circuits, and scan for additional trouble codes that may provide more context.

What repairs might be necessary for code B1065?

Repairs may involve repairing or replacing damaged wiring or connectors, replacing the airbag module, or reprogramming the module if it's been replaced.

Is it safe to drive with the B1065 code?

Driving with the B1065 code is not recommended, as it indicates a potential failure in the airbag system that could compromise safety in the event of a collision.

Can I clear the B1065 code without making repairs?

While you can clear the B1065 code with an OBDII scanner, it is important to address the underlying issue, as the code will likely return and the airbag system will remain inactive.

How much will it cost to fix a B1065 code?

Repair costs can vary widely depending on the cause but may range from a few hundred dollars for wiring repairs to over a thousand for module replacement.

Can I reset the airbag light after fixing the B1065 code?

Yes, once the issue is resolved, you can reset the airbag light using an OBDII scanner, but it's essential to ensure that the problem is fully addressed to prevent the light from coming back on.

Discuss the causes and fixes for B1065 OBDII Code

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