B0035 Code - Auxiliary Discriminating Sensor Closed or Shorted to Ground
Quick Answer
The B0035 diagnostic trouble code (DTC) indicates that the auxiliary discriminating sensor in the vehicle is closed or shorted to ground. Common causes include Faulty auxiliary discriminating sensor, Wiring or connector issues causing a short to ground, Corrosion or damage to the sensor or its components. 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
- B0035 indicates Auxiliary Discriminating Sensor Closed or Shorted to Ground.
- Common causes
- Common causes include Faulty auxiliary discriminating sensor, Wiring or connector issues causing a short to ground, Corrosion or damage to the sensor or its components.
- 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 B0035 Description
The B0035 diagnostic trouble code (DTC) indicates that the auxiliary discriminating sensor in the vehicle is closed or shorted to ground. This sensor is responsible for detecting changes in various vehicle systems and transmitting that information to the vehicle's electronic control module (ECM) for processing. When the sensor is closed or shorted to ground, it means that the circuit is not functioning properly, which can lead to inaccurate readings and potential issues with the vehicle's performance.
Common Causes of B0035
- Faulty auxiliary discriminating sensor.
- Wiring or connector issues causing a short to ground.
- Corrosion or damage to the sensor or its components.
- ECM malfunction affecting the sensor's operation.
- Impact or physical damage to the sensor from a collision or other external factors.
Symptoms of B0035
- Airbag warning light illuminated on the dashboard.
- Issues with the ABS system, such as erratic braking behavior.
- Traction control system malfunctions, leading to poor vehicle stability.
- Decreased overall safety of the vehicle due to potential airbag deployment issues.
How to Fix B0035
- Begin by diagnosing the specific cause of the closed or shorted auxiliary discriminating sensor, using a diagnostic scanner to read the trouble codes and pinpoint the issue.
- Inspect the wiring and connectors associated with the sensor for any signs of damage, corrosion, or shorts to ground. Repair or replace any damaged components.
- Test the auxiliary discriminating sensor itself to determine if it is faulty and replace it if necessary.
- Clear the DTC from the ECM memory using the diagnostic scanner and perform a test drive to ensure that the issue has been resolved.
- If the problem persists, consult with a professional technician to further troubleshoot and address any underlying issues that may be causing the sensor to malfunction.
Cost to Fix B0035
The cost of repairing a B0035 code related to an auxiliary discriminating sensor closed or shorted to ground can vary depending on the specific cause of the issue and the make and model of the vehicle. In general, the cost of parts for this repair can range from $100 to $300, with labor costs adding an additional $100 to $200. This brings the total estimated cost to around $200 to $500 for this repair.
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Code B0035 Information for Specific Makes
- B0035 Buick — Auxiliary Discriminating Sensor Closed or Shorted to Ground
- B0035 Cadillac — Auxiliary Discriminating Sensor Closed or Shorted to Ground
- B0035 Chevrolet — Auxiliary Discriminating Sensor Closed or Shorted to Ground
- B0035 GMC — Auxiliary Discriminating Sensor Closed or Shorted to Ground
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 B0035 Code
1. What are the common symptoms of OBDII code B0035?
The common symptoms of OBDII code B0035 (Auxiliary Discriminating Sensor Closed or Shorted to Ground) 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 B0035?
Possible causes of OBDII code B0035 include a faulty auxiliary discriminating sensor, wiring issues such as shorts or grounds, or a problem with the airbag control module.
3. How can I diagnose OBDII code B0035?
Diagnosing OBDII code B0035 typically involves using a scan tool to retrieve the code, conducting visual inspections of the wiring and sensor, and performing continuity and resistance tests to pinpoint the issue.
4. Can I still drive my vehicle with OBDII code B0035?
It is not recommended to drive your vehicle with OBDII code B0035 present, as it indicates a potential problem with the airbag system that could compromise safety in the event of a collision.
5. How do I repair OBDII code B0035?
Repairing OBDII code B0035 may involve replacing the faulty auxiliary discriminating sensor, repairing any damaged wiring, or addressing issues with the airbag control module. It's best to consult a professional mechanic for an accurate diagnosis and repair.
6. Will OBDII code B0035 reset itself?
OBDII code B0035 may reset itself if the underlying issue is temporary or intermittent. However, it's important to diagnose and address the root cause of the code to prevent it from recurring.
7. Is it safe to reset OBDII code B0035 without fixing the issue?
While you can clear the code temporarily, it is not safe to ignore or reset OBDII code B0035 without addressing the underlying problem, as it could affect the functionality of your vehicle's airbag system.
8. How much does it cost to fix OBDII code B0035?
The cost of fixing OBDII code B0035 can vary depending on the cause of the issue, the extent of the repairs needed, and the labor rates in your area. It's advisable to get a few quotes from reputable mechanics.
9. Can a DIY enthusiast repair OBDII code B0035 at home?
Repairing OBDII code B0035 may require specialized tools and expertise, particularly when dealing with the airbag system. While some DIY enthusiasts may be able to address simpler wiring issues, it's best to consult a professional for this code.
10. How can I prevent OBDII code B0035 from occurring in the future?
To prevent OBDII code B0035 from occurring in the future, it's essential to perform regular maintenance checks on your vehicle's airbag system, address any warning lights promptly, and avoid any rough handling of the wiring around the sensor.
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