AutoCodesGeneric – B1106

B1106 Code - Diagnosis Sensor Unit

Quick Answer

The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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
B1106 indicates Diagnosis Sensor Unit.
Common causes
Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit 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 7,407
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2022
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Code B1106 Description

The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. The Air Bag Diagnosis Sensor Unit detects a shock that exceeds specified level and watches such systems as the driver and passenger air bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate properly.
The Air Bag Diagnosis Sensor Unit contains the “G” sensors for both frontal and side collisions and spare battery function in case of main battery damaged in a collision.
OBDII Code B1106 - Diagnosis Sensor Unit - AutoCodes.com
B1106 Code - Diagnosis Sensor Unit

What are the Possible Causes of the DTC B1106?

  • Faulty Diagnosis Sensor Unit
  • Diagnosis Sensor Unit harness is open or shorted
  • Diagnosis Sensor Unit circuit poor electrical connection

How to Fix the DTC B1106?

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 B1106 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 B1106 code?

Need more information on how to fix the B1106 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1106 code diagnosed by a professional: Find a repair shop in your area

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 B1106 Code

1. What does OBDII code B1106 indicate?

The B1106 code refers to a fault with the Diagnosis Sensor Unit in the vehicle's system.

2. What are the common symptoms associated with OBDII code B1106?

Common symptoms include issues with airbag deployment, malfunctioning seatbelts, and illuminated warning lights on the dashboard.

3. What are the possible causes of OBDII code B1106?

Possible causes of the B1106 code include a damaged sensor unit, wiring issues, or a faulty control module.

4. How serious is OBDII code B1106?

The B1106 code is considered serious as it affects the proper functioning of critical safety components in the vehicle.

5. How do I diagnose OBDII code B1106?

Diagnosing the B1106 code typically involves using a diagnostic scanner to retrieve the specific fault codes stored in the system.

6. Can I drive my vehicle with OBDII code B1106?

It is not recommended to drive the vehicle with the B1106 code present, as it may compromise the safety systems in the vehicle.

7. How do I repair OBDII code B1106?

Repairing the B1106 code may involve replacing the Diagnosis Sensor Unit, repairing wiring issues, or reprogramming the control module.

8. Can I reset OBDII code B1106 without fixing the underlying issue?

While you can clear the code with a diagnostic scanner, it is crucial to address the root cause to ensure the safety systems function properly.

9. How much does it cost to repair OBDII code B1106?

The cost of repairing the B1106 code can vary depending on the extent of the damage and the specific components that need to be replaced.

10. How can I prevent OBDII code B1106 from recurring?

Regular maintenance checks, prompt repairs of any related issues, and following the manufacturer's recommended service schedule can help prevent the B1106 code from recurring.

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