C1596 2018 GMC Sierra Code - Trailer Brake Power Control Module Enable Circuit
Quick Answer
The Chassis Control Module-Auxiliary receives inputs from the Trailer Brake Power Control Module; these inputs are used to determine trailer connection and the amount of voltage supplied to the trailer brakes. Common causes include Faulty Trailer Brake Power Control Module, Trailer Brake Power Control Module harness is open or shorted, Trailer Brake Power 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
- C1596 2018 GMC Sierra indicates Trailer Brake Power Control Module Enable Circuit.
- Common causes
- Common causes include Faulty Trailer Brake Power Control Module, Trailer Brake Power Control Module harness is open or shorted, Trailer Brake Power 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 C1596 2018 GMC Sierra Description
What are the Possible Causes of the DTC C1596 2018 GMC Sierra?
- Faulty Trailer Brake Power Control Module
- Trailer Brake Power Control Module harness is open or shorted
- Trailer Brake Power Control Module circuit poor electrical connection
- Faulty Chassis Control Module-Auxiliary
How to Fix the DTC C1596 2018 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 C1596 2018 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.
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Frequently Asked Questions about C1596 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code C1596 on a 2018 GMC Sierra related to the Trailer Brake Power Control Module Enable Circuit?
- The common symptoms include trailer brake system malfunctions, issues with the power control module, and warning lights on the dashboard.
2. What could cause the OBDII code C1596 to trigger on a 2018 GMC Sierra?
- The code C1596 may be triggered by a faulty trailer brake power control module, damaged wiring, poor electrical connections, or issues with the brake system components.
3. How can I diagnose the cause of OBDII code C1596 on my 2018 GMC Sierra?
- A thorough inspection of the trailer brake system, checking the power control module, examining wiring for damage, and performing a diagnostic scan using an OBDII scanner can help diagnose the issue.
4. Can I continue driving my 2018 GMC Sierra with OBDII code C1596 present?
- It is not recommended to drive the vehicle with the code C1596 present, as it indicates potential issues with the trailer brake power control module that can affect braking performance.
5. What are some repair tips for fixing OBDII code C1596 on a 2018 GMC Sierra?
- Repair tips include checking and repairing any damaged wiring, ensuring proper connections, testing the trailer brake power control module, and resetting the code after addressing the underlying issue.
6. Is it safe to tow a trailer with a 2018 GMC Sierra if OBDII code C1596 is active?
- It is not safe to tow a trailer with an active OBDII code C1596, as it indicates problems with the trailer brake power control module that can compromise the braking system's effectiveness.
7. Can a DIY enthusiast fix OBDII code C1596 on a 2018 GMC Sierra?
- While some basic troubleshooting steps can be performed by a DIY enthusiast, resolving OBDII code C1596 may require advanced knowledge and specialized tools, so it is recommended to consult a professional mechanic.
8. How much does it typically cost to repair OBDII code C1596 on a 2018 GMC Sierra?
- The cost of repairing OBDII code C1596 can vary depending on the underlying issue, but it may involve expenses for parts replacement, labor costs, and diagnostic fees, which can range from a few hundred to over a thousand dollars.
9. Can a software update fix OBDII code C1596 on a 2018 GMC Sierra?
- In some cases, a software update from the manufacturer may address issues related to OBDII code C1596, especially if it is caused by software glitches or compatibility issues with the power control module.
10. How can I prevent OBDII code C1596 from recurring on my 2018 GMC Sierra in the future?
- To prevent the recurrence of OBDII code C1596, it is essential to perform regular maintenance on the trailer brake system, check wiring and connections periodically, and address any issues promptly to avoid further complications.
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