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AutoCodes – Generic – P2729

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

Quick Answer

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve 'E'. 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 Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve 'E'.
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.
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Code Popularity 10,371
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Jan 30, 2019
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Code P2729 Description

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
OBDII Code P2729 - Pressure Control Solenoid 'E' Control Circuit Low - AutoCodes.com
P2729 Code - Pressure Control Solenoid 'E' Control Circuit Low
What does this mean?

What are the Possible Causes of the DTC P2729?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty line pressure solenoid valve 'E'
  • Line pressure solenoid valve 'E' harness is open or shorted
  • Line pressure solenoid valve 'E' circuit poor electrical connection

How to Fix the DTC P2729?

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 P2729 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.

Need more information about the P2729 code?

Need more information on how to fix the P2729 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2729 code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P2729 Code

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