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Engine-Codes – Generic – P2729

P2729 Code - Pressure Control Solenoid 'E' Control Circuit Low

Quick Answer

The diagnostic trouble code P2729 indicates a problem with the Pressure Control Solenoid 'E' Control Circuit being detected as low. Common causes include Faulty Pressure Control Solenoid 'E', Damaged wiring or connectors in the control 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
P2729 indicates Pressure Control Solenoid 'E' Control Circuit Low.
Common causes
Common causes include Faulty Pressure Control Solenoid 'E', Damaged wiring or connectors in the control 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P2729 Description

The diagnostic trouble code P2729 indicates a problem with the Pressure Control Solenoid 'E' Control Circuit being detected as low. In an automatic transmission system, the pressure control solenoid is responsible for regulating the hydraulic pressure within the transmission. This specific solenoid, labeled as 'E', plays a crucial role in controlling the transmission fluid pressure to ensure smooth gear shifting and optimal performance.

OBDII Code P2729 - Pressure Control Solenoid 'E' Control Circuit Low
P2729 Code - Pressure Control Solenoid 'E' Control Circuit Low

Common Causes of P2729

  1. Faulty Pressure Control Solenoid 'E'
  2. Damaged wiring or connectors in the control circuit
  3. Malfunctioning transmission control module (TCM)
  4. Low transmission fluid levels
  5. Internal transmission damage

Symptoms of P2729

  1. Erratic shifting behavior
  2. Harsh or delayed gear changes
  3. Slipping gears
  4. Transmission overheating
  5. Illumination of the Check Engine Light

How to Fix P2729

  1. Diagnose the exact cause of the issue using a scan tool to pinpoint the faulty component.
  2. Inspect the wiring and connectors associated with the Pressure Control Solenoid 'E' for any damage or corrosion.
  3. Test the solenoid for proper functionality and replace if necessary.
  4. Check the transmission fluid level and condition, topping up or replacing as needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure proper operation of the transmission.

Cost to Fix P2729

The typical repair costs for addressing the P2729 code can vary depending on the specific cause of the issue. Generally, replacing a Pressure Control Solenoid 'E' or repairing wiring/connectors may cost between $150 to $400, including parts and labor. However, additional diagnosis time and labor rates at auto repair shops can influence the final cost. It's recommended to obtain quotes from local repair shops to get a more accurate estimate based on your vehicle's make and model.

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Code P2729 Information for Specific Makes

  • P2729 BMW — Pressure Control Solenoid 'E' Control Circuit Low
  • P2729 Buick — Pressure Control Solenoid Valve 5 Control Circuit Low Voltage
  • P2729 Cadillac — Pressure Control Solenoid Valve 5 Control Circuit Low Voltage
  • P2729 Chevrolet — Pressure Control Solenoid Valve 5 Control Circuit Low Voltage
  • P2729 Dodge — Pressure Control Solenoid 'E' Control Circuit Low
  • P2729 GMC — Pressure Control Solenoid Valve 5 Control Circuit Low Voltage
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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