P2720 2015 GMC Sierra Code - Pressure Control Solenoid 4 Control Circuit Low Voltage
Quick Answer
The pressure control solenoid 4 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
- P2720 2015 GMC Sierra indicates Pressure Control Solenoid 4 Control Circuit Low 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.
Code P2720 2015 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground on the pressure control solenoid 4 control circuit for 1 s.
What are the Possible Causes of the DTC P2720 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 P2720 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 P2720 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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Frequently Asked Questions about P2720 2015 GMC Sierra Code
1. What does the OBDII code P2720 mean on a 2015 GMC Sierra?
The P2720 code indicates a "Pressure Control Solenoid 4 Control Circuit Low Voltage," which means there's an electrical issue in the transmission solenoid circuit responsible for controlling hydraulic pressure.
2. What are the common symptoms of the P2720 code?
Symptoms may include harsh or delayed shifting, transmission slipping, reduced fuel efficiency, the vehicle going into limp mode, and the illumination of the check engine light.
3. What causes the P2720 code to appear?
Common causes include a faulty pressure control solenoid, damaged wiring or connectors in the solenoid circuit, low transmission fluid, or a failing transmission control module (TCM).
4. Can I drive my 2015 GMC Sierra with the P2720 code?
Driving with this code is not recommended, as it may cause further damage to the transmission and lead to unsafe driving conditions due to shifting problems.
5. How can I diagnose the P2720 code on my GMC Sierra?
Start by checking the transmission fluid level and condition, inspecting the wiring and connectors related to the pressure control solenoid, and using a scan tool to monitor the solenoid's operation.
6. How do I fix the P2720 code?
Repairs may include replacing the faulty pressure control solenoid, repairing or replacing damaged wiring or connectors, updating or reprogramming the TCM, or performing a transmission fluid flush.
7. What tools are needed to troubleshoot the P2720 code?
You'll need a scan tool or OBDII code reader, a multimeter for testing voltage, and potentially a transmission fluid pressure gauge.
8. How much does it cost to repair the P2720 code?
Repair costs vary; replacing a pressure control solenoid can cost $150–$400, while wiring repairs or TCM replacements may be more expensive depending on labor rates and parts.
9. Can low transmission fluid cause the P2720 code?
Yes, low transmission fluid can lead to insufficient hydraulic pressure, potentially triggering the P2720 code and causing shifting problems.
10. Is the P2720 code a common issue on the 2015 GMC Sierra?
While not extremely common, transmission solenoid and wiring issues can occur in higher-mileage or poorly maintained vehicles, leading to this code.
Discuss the causes and fixes for P2720 2015 GMC Sierra OBDII Code
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