Engine-CodesCadillac – C1596 Cadillac

C1596 Cadillac Code - Trailer Brake Power Control Module Enable Circuit

Quick Answer

The C1596 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the Trailer Brake Power Control Module Enable Circuit. Common causes include Faulty trailer brake power control module, Wiring issues in the enable circuit, Corrosion or damage to electrical connections related to the trailer brake system. 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 Cadillac indicates Trailer Brake Power Control Module Enable Circuit.
Common causes
Common causes include Faulty trailer brake power control module, Wiring issues in the enable circuit, Corrosion or damage to electrical connections related to the trailer brake system.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code C1596 Cadillac Description

The C1596 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the Trailer Brake Power Control Module Enable Circuit. This code indicates a malfunction in the circuit that enables the power control module responsible for the trailer brake system in the vehicle. The trailer brake power control module is essential for ensuring the proper functioning of the trailer brakes when towing a trailer.

OBDII Code C1596 Cadillac - Trailer Brake Power Control Module Enable Circuit
C1596 Cadillac Code - Trailer Brake Power Control Module Enable Circuit

Common Causes of C1596 Cadillac

  1. Faulty trailer brake power control module
  2. Wiring issues in the enable circuit
  3. Corrosion or damage to electrical connections related to the trailer brake system
  4. Faulty sensors or components in the trailer brake system
  5. Software or programming issues with the control module

Symptoms of C1596 Cadillac

  1. Trailer brakes not functioning properly
  2. Warning light on the dashboard related to trailer brake system
  3. Decreased braking performance while towing
  4. ABS system engaging unexpectedly while towing
  5. Trailer brake system not responding to input from the driver

How to Fix C1596 Cadillac

  1. Diagnose the specific cause of the issue using a diagnostic scanner
  2. Inspect the trailer brake power control module and related wiring for damage
  3. Repair or replace any faulty components, such as sensors or wiring harnesses
  4. Clear the DTC and perform a test drive to ensure the issue is resolved
  5. Calibrate the trailer brake system as needed to ensure proper functioning

Cost to Fix C1596 Cadillac

The cost of repairing the C1596 code for the Trailer Brake Power Control Module Enable Circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the repair costs for this type of issue can range from $200 to $600, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additional costs may apply if any components need to be replaced. It's recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate based on the specific circumstances of the vehicle.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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