AutoCodes – GMC – P2730 2015 GMC Sierra

P2730 2015 GMC Sierra Code - Pressure Control Solenoid Valve 5 Control Circuit High Voltage

Quick Answer

The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. 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: P2730 2015 GMC Sierra indicates Pressure Control Solenoid Valve 5 Control Circuit High Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
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 227

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 P2730 2015 GMC Sierra Description

The pressure control solenoid 5 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 5 regulates and directs oil pressure to the 1-2-3-4 clutch regulator valve and 1-2-3-4 clutch boost valve. Increasing pressure control solenoid 5 pressure increases pressure to the 1-2-3-4 clutch. The Transmission Control Module varies the current to the pressure control solenoid 5 through a low-side driver. Increasing the current to pressure control solenoid 5 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 5 decreases oil pressure by opening the exhaust port. Pressure control solenoid 5 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects an open or short to voltage on the clutch pressure control solenoid valve 5 control circuit for 1 s.

OBDII Code P2730 2015 GMC Sierra - Pressure Control Solenoid Valve 5 Control Circuit High Voltage - AutoCodes.com — P2730 2015 GMC Sierra Code - Pressure Control Solenoid Valve 5 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2730 2015 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2730 2015 GMC Sierra?

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 P2730 2015 GMC Sierra 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 P2730 2015 GMC Sierra Code

1. What does the OBDII code P2730 indicate in a 2015 GMC Sierra?

The code P2730 indicates that there is a high voltage issue in the Pressure Control Solenoid Valve 5 Control Circuit, which can affect the transmission's shifting performance.

2. What symptoms might I notice if my 2015 GMC Sierra has the P2730 code?

Symptoms can include erratic shifting, the transmission slipping, decreased fuel efficiency, a transmission that stays in a single gear, or the transmission failing to shift at all.

3. What are common causes of the P2730 code in a 2015 GMC Sierra?

Common causes include faulty or damaged wiring or connectors in the solenoid circuit, a bad pressure control solenoid, or issues with the transmission control module.

4. How can I fix the P2730 code in my 2015 GMC Sierra?

Repairing this code may involve inspecting and repairing or replacing wiring and connectors, replacing the pressure control solenoid, or in some cases, replacing or reprogramming the transmission control module.

5. Is it safe to drive my 2015 GMC Sierra with the P2730 code present?

While it might be safe for short distances, driving with this code can lead to further damage to the transmission. It is advisable to address the issue as soon as possible to avoid more extensive repairs.

6. How is the P2730 code diagnosed in a 2015 GMC Sierra?

Diagnosis involves using a scan tool to confirm the presence of the code, visually inspecting the wiring and connectors, testing the solenoid's functionality and resistance, and checking the transmission control module for faults.

7. Can a faulty battery or charging system cause the P2730 code in a 2015 GMC Sierra?

While less common, issues with the vehicle's battery or charging system can lead to voltage irregularities that might trigger this code. It's a good practice to check the battery and charging system as part of the diagnostic process.

8. What tools are needed to diagnose and repair the P2730 code in a 2015 GMC Sierra?

Tools needed may include a digital multimeter, an OBDII scanner, and possibly an oscilloscope to check the waveforms of the solenoid's operation. Basic hand tools will also be required for accessing and replacing components.