B1078 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
- B1078 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 B1078 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 B1078?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1078?
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 B1078 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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Get the B1078 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1078 Acura — Daytime Running Lights Signal Error
- B1078 Honda — Daytime Running Lights Signal Error
- B1078 Infiniti — Diagnosis Sensor Unit
- B1078 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 B1078 Code
1. What are the common symptoms of OBDII code B1078 related to the Diagnosis Sensor Unit?
- Common symptoms include issues with airbag warning lights, malfunctioning airbag systems, and diagnostic trouble codes related to the sensor unit.
2. What are the possible causes of OBDII code B1078?
- The code B1078 can be triggered by a faulty Diagnosis Sensor Unit, damaged wiring, loose connections, or issues with the airbag system.
3. How can I diagnose OBDII code B1078?
- Diagnosing code B1078 typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the Diagnosis Sensor Unit and related components, and conducting electrical testing if necessary.
4. Can I repair OBDII code B1078 on my own?
- Repairing code B1078 may require advanced automotive knowledge and specialized tools. It is recommended to consult a professional mechanic to accurately diagnose and fix the issue.
5. Is it safe to drive with OBDII code B1078 present?
- Driving with OBDII code B1078 may pose a risk as it indicates potential problems with the airbag system. It is advisable to address the issue promptly to ensure the safety of the vehicle occupants.
6. How much does it typically cost to repair OBDII code B1078?
- Repair costs for OBDII code B1078 can vary depending on the underlying cause, parts needed for replacement, and labor charges. It is best to obtain quotes from different repair shops for an accurate estimate.
7. Can a low battery voltage trigger OBDII code B1078?
- Yes, a low battery voltage can sometimes trigger code B1078 due to electrical system disruptions. Ensure the vehicle's battery is in good condition and properly charged before diagnosing the issue.
8. Will resetting the OBDII system clear code B1078?
- Resetting the OBDII system may temporarily clear the code, but it will likely return if the underlying issue with the Diagnosis Sensor Unit or airbag system is not addressed.
9. Is there a recall related to OBDII code B1078?
- Check with the vehicle manufacturer or the National Highway Traffic Safety Administration (NHTSA) to see if there are any recalls related to OBDII code B1078 for your specific vehicle make and model.
10. Can a damaged Diagnosis Sensor Unit cause other OBDII codes to appear?
- Yes, a damaged Diagnosis Sensor Unit can cause other related OBDII codes to appear, affecting the overall performance and safety features of the vehicle.
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