C1239 2016 GMC Sierra Code - Brake Pressure Sensor 1/2 Correlation
Quick Answer
The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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
- C1239 2016 GMC Sierra indicates Brake Pressure Sensor 1/2 Correlation.
- Common causes
- Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module 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 C1239 2016 GMC Sierra Description
Brake pressure sensor information is communicated from the Electronic Brake Control Module (EBCM) to the Hybrid Control Processor (HCP). This information is used to schedule regenerative braking and engine autostops.
The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects a corrupted data message from the Electronic Brake Control Module.
What are the Possible Causes of the DTC C1239 2016 GMC Sierra?
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module harness is open or shorted
- Electronic Brake Control Module circuit poor electrical connection
- Faulty Starter/Generator Control Module
How to Fix the DTC C1239 2016 GMC Sierra?
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 C1239 2016 GMC Sierra 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 C1239 2016 GMC Sierra code?
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Frequently Asked Questions about C1239 2016 GMC Sierra Code
1. What are the common symptoms of OBDII code C1239 on a 2016 GMC Sierra related to Brake Pressure Sensor 1/2 Correlation?
The common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of ABS functionality, and possible issues with brake performance.
2. What could cause the OBDII code C1239 on a 2016 GMC Sierra indicating Brake Pressure Sensor 1/2 Correlation?
Possible causes may include a malfunctioning brake pressure sensor, wiring or connection issues, low brake fluid levels, or a problem with the ABS control module.
3. How serious is the OBDII code C1239 Brake Pressure Sensor 1/2 Correlation on a 2016 GMC Sierra?
This code should be addressed promptly as it relates to the proper functioning of the vehicle's anti-lock braking system (ABS), which is crucial for safe braking performance.
4. Can driving with the OBDII code C1239 on a 2016 GMC Sierra be dangerous?
Continuing to drive with this code may compromise the effectiveness of the ABS, potentially leading to longer braking distances and an increased risk of skidding or loss of vehicle control in emergency braking situations.
5. What are some DIY repair tips for addressing the OBDII code C1239 on a 2016 GMC Sierra?
DIY repair tips may include checking and refilling brake fluid levels, inspecting wiring and connections for any visible damage, and ensuring the brake pressure sensor is functioning correctly.
6. Is it recommended to reset the OBDII code C1239 on a 2016 GMC Sierra after making repairs?
Yes, it is advisable to reset the code using an OBDII scanner after addressing the underlying issue. This allows you to verify if the repair was successful and to ensure the ABS system is functioning properly.
7. How much does it typically cost to repair the OBDII code C1239 related to Brake Pressure Sensor 1/2 Correlation on a 2016 GMC Sierra?
The cost of repair can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or ABS module diagnostics, with costs ranging from a few hundred to over a thousand dollars.
8. Can I continue driving my 2016 GMC Sierra with the ABS warning light on due to code C1239?
While you may be able to drive the vehicle, it is not recommended to ignore the ABS warning light. It is best to have the issue diagnosed and repaired as soon as possible to ensure optimal braking safety.
9. How can a mechanic diagnose the OBDII code C1239 Brake Pressure Sensor 1/2 Correlation on a 2016 GMC Sierra?
A mechanic may use a scan tool to retrieve the specific ABS code, inspect the brake pressure sensor and related components, perform electrical tests, and conduct a visual inspection to diagnose the issue accurately.
10. Is it possible for the OBDII code C1239 on a 2016 GMC Sierra to reoccur after being repaired?
If the underlying cause of the code is not fully addressed or if there are other related issues present, the code may reoccur. It is essential to ensure that all potential causes are properly diagnosed and repaired to prevent recurrence.
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