C1596 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 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 Description
What are the Possible Causes of the DTC C1596?
- 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?
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 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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Information for Specific Makes
- C1596 Buick — Trailer Brake Power Control Module Enable Circuit
- C1596 Cadillac — Trailer Brake Power Control Module Enable Circuit
- C1596 Chevrolet — Trailer Brake Power Control Module Enable Circuit
- C1596 GMC — Trailer Brake Power Control Module Enable Circuit
Frequently Asked Questions about C1596 Code
1. What are the common symptoms of OBDII code C1596 (Trailer Brake Power Control Module Enable Circuit)?
- Common symptoms include non-functional trailer brakes, illuminated brake warning lights on the dashboard, and loss of communication with the trailer brake module.
2. What are the possible causes of OBDII code C1596?
- The code C1596 can be caused by issues such as a faulty trailer brake power control module, damaged wiring in the trailer brake system, or a loss of power or ground to the module.
3. How can I diagnose the cause of OBDII code C1596?
- To diagnose the code C1596, you can use a diagnostic scanner to read the code, inspect the trailer brake module and wiring for damage, and perform tests to check for power and ground connectivity.
4. Can a DIY enthusiast repair OBDII code C1596?
- Depending on the cause of the code C1596, a DIY enthusiast may be able to repair it by replacing the trailer brake power control module, repairing damaged wiring, or ensuring proper power and ground connections.
5. Is it safe to drive with OBDII code C1596 present?
- It is not recommended to drive with OBDII code C1596 present, as it can lead to non-functional trailer brakes, which may affect the handling and safety of the vehicle when towing a trailer.
6. How much does it typically cost to repair OBDII code C1596?
- The cost of repairing OBDII code C1596 can vary depending on the cause of the issue, but it may range from $100 to $500 for parts and labor.
7. Can OBDII code C1596 be triggered by a loose trailer hitch connection?
- While a loose trailer hitch connection may not directly trigger OBDII code C1596, it can cause issues with the trailer brake system that may lead to the code being generated.
8. Are there any preventive measures to avoid OBDII code C1596 in the future?
- Regularly inspecting the trailer brake system, ensuring proper installation and connection of the trailer brake module, and maintaining good trailer maintenance can help prevent OBDII code C1596 from appearing.
9. Can extreme weather conditions cause OBDII code C1596 to occur?
- Extreme weather conditions can potentially affect the trailer brake system and lead to issues that trigger OBDII code C1596, such as water damage to the module or wiring in freezing temperatures.
10. How long does it typically take to repair OBDII code C1596?
- The repair time for OBDII code C1596 can vary depending on the specific cause of the issue and the expertise of the technician, but it may take anywhere from 1 to 4 hours to diagnose and repair the problem.
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