C2798 Code - Brake Pressure Transducer Supply Short To Ground
Quick Answer
The Brake Pressure Transducer is attached to the brake master cylinder and is hardwired to the Trailer Brake Control (TBC) Module. Common causes include Faulty Brake Pressure Transducer, Brake Pressure Transducer harness is open or shorted, Brake Pressure Transducer 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
- C2798 indicates Brake Pressure Transducer Supply Short To Ground.
- Common causes
- Common causes include Faulty Brake Pressure Transducer, Brake Pressure Transducer harness is open or shorted, Brake Pressure Transducer 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 C2798 Description
What are the Possible Causes of the DTC C2798?
- Faulty Brake Pressure Transducer
- Brake Pressure Transducer harness is open or shorted
- Brake Pressure Transducer circuit poor electrical connection
- Faulty Trailer Brake Control (TBC) Module
How to Fix the DTC C2798?
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 C2798 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 C2798 code?
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Need Help with the Code?
Get the C2798 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C2798 Ford — Brake Pressure Transducer Supply Short To Ground
- C2798 Lincoln — Brake Pressure Transducer Supply Short To Ground
- C2798 Mercury — Brake Pressure Transducer Supply Short To Ground
Frequently Asked Questions about C2798 Code
1. What are the common symptoms of OBDII code C2798 (Brake Pressure Transducer Supply Short To Ground)?
The common symptoms of code C2798 include the ABS warning light being illuminated on the dashboard, decreased braking performance, and potential loss of ABS functionality.
2. What are the possible causes of OBDII code C2798?
The possible causes of code C2798 include damaged wiring or connectors leading to the brake pressure transducer, a faulty brake pressure transducer, or an issue with the ABS control module.
3. How can I diagnose OBDII code C2798?
Diagnosing code C2798 involves using a scan tool to retrieve the code, inspecting the wiring and connectors around the brake pressure transducer, testing the brake pressure transducer itself, and checking the ABS control module for any faults.
4. Can I still drive my vehicle with OBDII code C2798 present?
It is not recommended to drive your vehicle with OBDII code C2798 present, as it can affect the performance of your ABS system and compromise your braking ability. It is advised to address the issue promptly.
5. How can I repair OBDII code C2798?
Repairing code C2798 may involve repairing or replacing damaged wiring or connectors, replacing the brake pressure transducer if faulty, or addressing any issues with the ABS control module. It is recommended to follow the manufacturer's recommended repair procedures.
6. Will resetting the OBDII code C2798 make it go away permanently?
Resetting the code may temporarily turn off the warning light, but if the underlying issue causing code C2798 is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem.
7. Is it safe to continue driving if the ABS warning light is on due to code C2798?
Driving with the ABS warning light on due to code C2798 is not recommended, as it indicates a potential issue with the ABS system that can compromise your vehicle's braking performance. It is best to have the problem diagnosed and repaired as soon as possible.
8. Can a DIY enthusiast fix OBDII code C2798 at home?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to address code C2798 at home. However, due to the complexity of ABS systems and the safety implications of braking issues, it is advisable to seek professional help if unsure.
9. How much does it typically cost to repair OBDII code C2798 at a mechanic or dealership?
The cost of repairing code C2798 can vary depending on the specific cause of the issue, the labor rates of the mechanic or dealership, and the cost of any parts that need to be replaced. It is recommended to obtain quotes from different sources for comparison.
10. Can OBDII code C2798 affect other systems in the vehicle?
While code C2798 specifically relates to the brake pressure transducer supply short to ground, issues with the ABS system can potentially impact the overall safety and performance of the vehicle. It is important to address ABS-related codes promptly to ensure the proper functioning of the vehicle's braking system.
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