AutoCodes – Buick – P2736 Buick

P2736 Buick Code - Transmission Control Solenoid Valve 6 Control Circuit Open

Quick Answer

The Transmission Control Solenoid Valve Solenoid Valve is 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 Transmission Control Solenoid Valve. 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: P2736 Buick indicates Transmission Control Solenoid Valve 6 Control Circuit Open.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
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 356

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2736 Buick Description

The Transmission Control Solenoid Valve Solenoid Valve is 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 Transmission Control 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). The Diagnostic Trouble Code (DTC) is set when the Transmission Control Solenoid Valve Control Circuit commanded state does not match the actual state for greater than 1 s.

OBDII Code P2736 Buick - Transmission Control Solenoid Valve 6 Control Circuit Open - AutoCodes.com — P2736 Buick Code - Transmission Control Solenoid Valve 6 Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2736 Buick?

Low transmission fluid level
Dirty transmission fluid
Faulty Transmission Control Solenoid Valve
Transmission Control Solenoid Valve harness is open or shorted
Transmission Control Solenoid Valve circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P2736 Buick?

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 P2736 Buick 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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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 P2736 Buick Code

What does the OBD-II code P2736 mean on a Buick?

Code P2736 indicates an open circuit issue in the control circuit of transmission control solenoid valve 6, which helps manage gear shifting in the transmission.

What are the common symptoms of a P2736 code in a Buick?

Symptoms may include harsh or delayed shifting, transmission slipping, reduced fuel efficiency, or the vehicle entering "limp mode."

What causes the P2736 code to appear in a Buick?

Common causes include a faulty transmission control solenoid, damaged or corroded wiring, a defective transmission control module (TCM), or low transmission fluid.

Can low transmission fluid cause the P2736 code?

Yes, low or dirty transmission fluid can affect the solenoid's performance and trigger the P2736 code.

How do I diagnose a P2736 code on my Buick?

Start by checking the transmission fluid level and condition, inspect the wiring and connectors for damage, and test the resistance of the solenoid using a multimeter.

Can I drive my Buick with the P2736 code?

Driving with this code is not recommended, as it can cause further damage to the transmission or lead to unsafe driving conditions.

How do you fix the P2736 code on a Buick?

Repairs may include replacing the faulty transmission control solenoid, repairing damaged wiring or connectors, flushing and refilling transmission fluid, or reprogramming/replacing the TCM.

How much does it cost to repair a P2736 code on a Buick?

Repair costs can vary, but replacing a solenoid typically costs between $150 and $400, while wiring repairs or TCM replacement may cost more depending on labor and parts.

Can a bad transmission control module (TCM) trigger the P2736 code?

Yes, a malfunctioning TCM can cause improper communication with the solenoid and trigger the P2736 code.

How can I prevent the P2736 code from returning?

Regularly check and maintain proper transmission fluid levels, keep the transmission system clean, and inspect wiring and connectors during routine vehicle maintenance.