B1005 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
- B1005 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.
Code B1005 Description
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.
What are the Possible Causes of the DTC B1005?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1005?
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 B1005 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.
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Information for Specific Makes
- B1005 Acura — MICU Lost Communication With Relay Control Module
- B1005 Honda — MICU Lost Communication With Relay Control Module
- B1005 Infiniti — Diagnosis Sensor Unit
- B1005 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.
Frequently Asked Questions about B1005 Code
1. What are the common symptoms of OBDII code B1005 (Diagnosis Sensor Unit)?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system.
2. What are the possible causes of OBDII code B1005 (Diagnosis Sensor Unit)?
- The code B1005 can be triggered by a malfunction in the diagnosis sensor unit, faulty wiring, or a poor connection in the airbag system.
3. How can I diagnose OBDII code B1005 (Diagnosis Sensor Unit) at home?
- It is recommended to use an OBDII scanner to retrieve the specific error code, and then inspect the diagnosis sensor unit and associated wiring for any visible damage.
4. Can I continue driving my vehicle with OBDII code B1005 (Diagnosis Sensor Unit)?
- It is not recommended to drive the vehicle with an activated airbag warning light, as it indicates potential issues with the airbag system's functionality.
5. How can I reset OBDII code B1005 (Diagnosis Sensor Unit) after making repairs?
- After fixing the underlying issue causing the code, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
6. Are there any common repair tips for fixing OBDII code B1005 (Diagnosis Sensor Unit)?
- Common repair tips include checking and securing the wiring connections, inspecting the diagnosis sensor unit for damage, and ensuring proper installation.
7. Does OBDII code B1005 (Diagnosis Sensor Unit) affect vehicle safety?
- Yes, OBDII code B1005 related to the diagnosis sensor unit can impact the proper functioning of the airbag system, compromising vehicle safety in the event of a collision.
8. How much does it cost to repair OBDII code B1005 (Diagnosis Sensor Unit) at a mechanic?
- The repair costs for OBDII code B1005 can vary depending on the exact cause of the issue, but it may involve diagnosing the problem, replacing components, and resetting the system.
9. Can OBDII code B1005 (Diagnosis Sensor Unit) be triggered by a loose connection?
- Yes, a loose or poor connection in the diagnosis sensor unit or airbag system wiring can trigger OBDII code B1005 and should be checked during diagnosis.
10. Is it possible to prevent OBDII code B1005 (Diagnosis Sensor Unit) from occurring?
- Regular maintenance and inspections of the airbag system, diagnosis sensor unit, and associated wiring can help prevent issues that lead to OBDII code B1005.
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