C1595 2016 GMC Sierra Code - Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction
Quick Answer
The C1595 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction. Common causes include Faulty wiring or connectors in the trailer brake system, Damaged trailer brake power control module, Corrosion or poor connections in the circuit. 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
- C1595 2016 GMC Sierra indicates Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction.
- Common causes
- Common causes include Faulty wiring or connectors in the trailer brake system, Damaged trailer brake power control module, Corrosion or poor connections in the circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code C1595 2016 GMC Sierra Description
The C1595 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction. This code is specifically related to the communication between the vehicle's trailer brake system and the power control module. The trailer brake system is an essential component for towing trailers safely, as it helps control the braking of the trailer independently of the vehicle. When this circuit malfunctions, it can lead to issues with the trailer brake system, potentially compromising the vehicle's ability to brake effectively while towing.
Common Causes of C1595 2016 GMC Sierra
- Faulty wiring or connectors in the trailer brake system
- Damaged trailer brake power control module
- Corrosion or poor connections in the circuit
- Electrical issues in the vehicle's electronic control module
- Physical damage to the trailer brake components
Symptoms of C1595 2016 GMC Sierra
- Dashboard warning lights related to the trailer brake system
- Inconsistent or non-responsive trailer brake operation
- Decreased braking efficiency while towing
- Unusual noises or vibrations while braking with a trailer attached
How to Fix C1595 2016 GMC Sierra
- Begin by conducting a thorough visual inspection of the trailer brake system wiring, connectors, and components to identify any visible damage or corrosion.
- Use a multimeter to test the continuity and voltage of the circuit between the vehicle's electronic control module and the trailer brake power control module.
- Check for any stored trouble codes in the vehicle's onboard diagnostic system to pinpoint the specific issue with the circuit.
- Replace any damaged wiring, connectors, or components in the trailer brake system as needed.
- Clear the DTC from the vehicle's system and test the trailer brake system to ensure proper operation.
Cost to Fix C1595 2016 GMC Sierra
The typical repair costs for addressing a C1595 code on a 2016 GMC Sierra can vary depending on the extent of the issue and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total cost for resolving this issue is likely to fall between $250 and $600. It's important to note that these estimates are approximate, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repair needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on the specific circumstances of the vehicle.
Need more information about the C1595 2016 GMC Sierra code?
Need more information on how to fix the C1595 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1595 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C1595 2016 GMC Sierra Code
1. What does the OBDII code C1595 mean on a 2016 GMC Sierra?
The code C1595 indicates a "Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction," meaning there’s an issue with the signal or wiring in the trailer brake system.
2. What are the common symptoms of code C1595 on a GMC Sierra?
Symptoms include the trailer brakes not functioning properly, a "Service Trailer Brake System" warning on the dashboard, or the trailer brake controller not responding.
3. What causes the C1595 code to trigger on a 2016 GMC Sierra?
Common causes include damaged or corroded wiring, a faulty trailer brake power control module, a defective trailer brake switch, or poor connections at the trailer brake controller.
4. Can the C1595 code affect normal driving without a trailer?
No, the code typically does not affect normal driving without a trailer, but it will prevent the trailer brake system from working when towing.
5. How do I diagnose a C1595 code on my GMC Sierra?
Start by checking the trailer brake wiring and connectors for damage or corrosion. Use a multimeter to test for proper voltage and continuity. Inspect the trailer brake power control module and switch for faults.
6. Can a faulty trailer cause the C1595 code on my truck?
Yes, a trailer with damaged wiring or malfunctioning brakes can cause the code to appear, as the truck's system may sense an issue with the signal.
7. How do I fix the C1595 code on a 2016 GMC Sierra?
Repairs may include fixing or replacing damaged wiring, cleaning corroded connectors, or replacing the trailer brake power control module or switch if they are faulty.
8. What tools are needed to troubleshoot the C1595 code?
You’ll need a multimeter to test wiring and voltage, an OBDII scanner to confirm and clear the code, and possibly wiring diagrams for the trailer brake system.
9. Is it safe to tow with the C1595 code active?
No, it’s not safe to tow because the trailer brake system may not function, increasing the risk of accidents, especially when stopping or braking downhill.
10. Do I need to reprogram the trailer brake control module after fixing the C1595 code?
In most cases, reprogramming is not necessary, but you may need to clear the code with an OBDII scanner after repairs are completed.
Discuss the causes and fixes for C1595 2016 GMC Sierra OBDII Code
Code C1595 2016 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.