B1008 Code - Diagnosis Sensor Unit

Quick Answer

The B1008 diagnostic trouble code (DTC) specifically refers to an issue with the Diagnosis Sensor Unit in a vehicle. Common causes include Faulty Diagnosis Sensor Unit, Wiring issues or shorts in the sensor unit circuit, Faulty sensors connected to the 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

B1008 indicates Diagnosis Sensor Unit.

Common causes

Common causes include Faulty Diagnosis Sensor Unit, Wiring issues or shorts in the sensor unit circuit, Faulty sensors connected to the 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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
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Common Causes of B1008

Symptoms of B1008

How to Fix B1008

Cost to Fix B1008

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Code B1008 Information for Specific Makes

• B1008 Acura — MICU Lost Communication With The Gauge Control Module
• B1008 Buick — Calibration Data Not Programmed
• B1008 Cadillac — Calibration Data Not Programmed
• B1008 Chevrolet — Calibration Data Not Programmed
• B1008 Ford — Wiper Mode Switch Signal Stuck Low
• B1008 GMC — Calibration Data Not Programmed
• B1008 Honda — MICU Lost Communication With The Gauge Control Module
• B1008 Infiniti — Diagnosis Sensor Unit
• B1008 Lincoln — Wiper Mode Switch Signal Stuck Low
• B1008 Mercury — Wiper Mode Switch Signal Stuck Low
• B1008 Nissan — Diagnosis Sensor Unit

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 B1008 Code

1. What does OBDII code B1008 indicate?

- OBDII code B1008 refers to an issue with the Diagnosis Sensor Unit in the vehicle.

2. What are some common symptoms of OBDII code B1008?

- Common symptoms of OBDII code B1008 may include malfunctioning airbags, illuminated airbag warning light on the dashboard, and diagnostic trouble codes related to the sensor unit.

3. What are possible causes of OBDII code B1008?

- Possible causes of OBDII code B1008 include a faulty Diagnosis Sensor Unit, wiring or connection issues, or a malfunctioning airbag control module.

4. How can I diagnose the Diagnosis Sensor Unit related to OBDII code B1008?

- Diagnosing the Diagnosis Sensor Unit involves using a professional OBDII scanner to retrieve the specific trouble code, inspecting the wiring and connections for any damage, and testing the sensor unit for proper functionality.

5. Can OBDII code B1008 be reset without fixing the underlying issue?

- Resetting OBDII code B1008 without addressing the underlying problem may temporarily clear the warning light, but the issue will likely reoccur. It is essential to diagnose and repair the root cause.

6. Is it safe to drive with OBDII code B1008 present?

- It is not recommended to drive with OBDII code B1008 present, as it indicates a potential problem with the airbag system, which is crucial for occupant safety in the event of a collision.

7. How much does it typically cost to repair OBDII code B1008?

- The cost of repairing OBDII code B1008 can vary depending on the cause of the issue. It may involve replacing the Diagnosis Sensor Unit, which can range from $200 to $500 including parts and labor.

8. Can I fix OBDII code B1008 myself?

- While some DIY enthusiasts may be able to diagnose and repair simple wiring or connection issues related to OBDII code B1008, it is recommended to consult a professional mechanic for proper diagnosis and repair of the Diagnosis Sensor Unit.

9. Are there any preventive measures to avoid OBDII code B1008?

- To prevent OBDII code B1008, regular maintenance of the airbag system is essential. Conducting periodic inspections and addressing any warning lights promptly can help prevent issues with the Diagnosis Sensor Unit.

10. Will OBDII code B1008 affect my vehicle's performance?

- OBDII code B1008 is related to the airbag system and typically does not affect the vehicle's performance. However, it is crucial to address this code promptly to ensure the proper functioning of the safety systems.