Engine-CodesBuick – P1852 Buick

P1852 Buick Code - Brake Band Apply Solenoid Low Input Voltage

Quick Answer

The P1852 Buick diagnostic trouble code indicates that there is a low input voltage in the brake band apply solenoid circuit. Common causes include Faulty brake band apply solenoid, Damaged wiring or connectors in the solenoid circuit, Malfunctioning transmission control module (TCM). 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
P1852 Buick indicates Brake Band Apply Solenoid Low Input Voltage.
Common causes
Common causes include Faulty brake band apply solenoid, Damaged wiring or connectors in the solenoid circuit, Malfunctioning transmission control module (TCM).
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 Sep 07, 2024
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Code P1852 Buick Description

The P1852 Buick diagnostic trouble code indicates that there is a low input voltage in the brake band apply solenoid circuit. The brake band apply solenoid is a crucial component of the transmission system that is responsible for controlling the application of the brake bands in the transmission. These brake bands are used to control the shifting of gears in automatic transmissions by applying pressure to specific components. When the brake band apply solenoid receives a low input voltage, it may not function properly, leading to issues with gear shifting and overall transmission performance.

OBDII Code P1852 Buick - Brake Band Apply Solenoid Low Input Voltage
P1852 Buick Code - Brake Band Apply Solenoid Low Input Voltage

Common Causes of P1852 Buick

  1. Faulty brake band apply solenoid
  2. Damaged wiring or connectors in the solenoid circuit
  3. Malfunctioning transmission control module (TCM)
  4. Low voltage supply to the solenoid
  5. Corrosion in the solenoid circuit

Symptoms of P1852 Buick

  1. Harsh or delayed shifting
  2. Slipping gears
  3. Transmission going into limp mode
  4. Illumination of the Check Engine Light
  5. Difficulty engaging gears

How to Fix P1852 Buick

  1. Diagnose the issue by using a scan tool to retrieve the fault codes and checking the voltage supply to the brake band apply solenoid.
  2. Inspect the wiring and connectors in the solenoid circuit for any damage or corrosion.
  3. Test the brake band apply solenoid for proper functionality and replace if necessary.
  4. Clear the fault codes and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to identify any underlying issues with the TCM or other transmission components.

Cost to Fix P1852 Buick

The typical repair costs for addressing a P1852 Buick code can vary depending on the specific cause of the issue. In general, replacing a faulty brake band apply solenoid can cost between $150 and $300, including parts and labor. However, if additional diagnosis or repairs are needed, the total cost may increase. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and 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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