B1077 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
- B1077 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 B1077 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 B1077?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1077?
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 B1077 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 B1077 code?
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Get the B1077 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1077 Acura — Windshield Wiper Signal Error
- B1077 Honda — Windshield Wiper Signal Error
- B1077 Infiniti — Diagnosis Sensor Unit
- B1077 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 B1077 Code
1. What are the common symptoms of OBDII code B1077 (Diagnosis Sensor Unit)?
The common symptoms of B1077 may include issues with the airbag system, such as the airbag warning light staying illuminated on the dashboard.
2. What are the possible causes of OBDII code B1077?
The possible causes of B1077 can be a faulty diagnosis sensor unit, damaged wiring or connectors related to the airbag system, or a malfunction in the airbag control module.
3. How can I diagnose OBDII code B1077?
Diagnosing B1077 typically involves using a diagnostic scanner to retrieve the specific trouble code, followed by inspecting the diagnosis sensor unit, wiring, and connectors for any visible damage or loose connections.
4. Is it safe to drive with OBDII code B1077 present?
It is not recommended to drive with OBDII code B1077 present, as it indicates a potential issue with the airbag system that may compromise its functionality in the event of a collision.
5. Can I reset OBDII code B1077 without fixing the underlying issue?
Resetting OBDII code B1077 without addressing the underlying problem will likely result in the code reappearing once the system detects the issue again.
6. How much does it typically cost to repair OBDII code B1077?
The cost of repairing OBDII code B1077 can vary depending on the root cause of the issue, but it may involve replacing the diagnosis sensor unit, repairing damaged wiring, or addressing a malfunction in the airbag control module.
7. Can I repair OBDII code B1077 myself, or should I seek professional help?
Repairing OBDII code B1077 may require specialized knowledge and tools, so it is advisable to seek professional help from a qualified mechanic or technician to ensure the issue is properly diagnosed and repaired.
8. Will disconnecting the battery reset OBDII code B1077?
Disconnecting the battery may temporarily clear the code, but it will not fix the underlying issue causing OBDII code B1077 to appear. The code is likely to return once the system detects the problem again.
9. How important is it to address OBDII code B1077 promptly?
It is crucial to address OBDII code B1077 promptly, as it indicates a potential safety concern with the airbag system that could put you at risk in the event of an accident.
10. Can OBDII code B1077 affect the overall performance of the vehicle?
While OBDII code B1077 primarily relates to the airbag system, ignoring the issue can lead to potential safety risks and impact the overall performance of the vehicle in terms of occupant safety.
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