P2738 2014 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit Low Voltage
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
- P2738 2014 GMC Sierra indicates Transmission Control Solenoid Valve 6 Control Circuit Low Voltage.
- 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.
Code P2738 2014 GMC Sierra Description
What are the Possible Causes of the DTC P2738 2014 GMC Sierra?
- 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 P2738 2014 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 P2738 2014 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 P2738 2014 GMC Sierra Code
1. What does the OBDII code P2738 indicate on a 2014 GMC Sierra?
The code P2738 indicates that there is a low voltage issue in the control circuit of Transmission Control Solenoid Valve 6.
2. What symptoms might I notice if my 2014 GMC Sierra has the P2738 code?
Symptoms can include erratic shifting, the transmission slipping, decreased fuel efficiency, or the transmission may fail to shift into certain gears.
3. What could cause the P2738 code to appear on a 2014 GMC Sierra?
Possible causes include a faulty transmission control solenoid, wiring issues like shorts or frays in the control circuit, or problems with the transmission control module.
4. How can I fix the P2738 code in my 2014 GMC Sierra?
Repairs might involve replacing the faulty solenoid, repairing or replacing damaged wires or connectors in the solenoid’s control circuit, or in some cases, replacing or reprogramming the transmission control module.
5. Is it safe to drive my 2014 GMC Sierra with the P2738 code?
Driving with this code is not recommended as it can lead to further damage to the transmission, potentially resulting in unsafe driving conditions due to unexpected shifts or loss of gear function.
6. How is the P2738 code diagnosed in a 2014 GMC Sierra?
Diagnosis typically involves using a scan tool to confirm the presence of the P2738 code, followed by a visual inspection of the solenoid and its wiring. Further testing with a multimeter may be required to check for voltage and resistance in the solenoid circuit.
7. Can the P2738 code affect the overall performance of my 2014 GMC Sierra?
Yes, this code can negatively impact the transmission's performance, which in turn could affect the overall drivability and efficiency of the vehicle.
8. What tools are required to diagnose the P2738 code on a 2014 GMC Sierra?
Tools needed might include a scan tool to read the code, a multimeter for electrical testing, and basic hand tools for accessing the transmission control solenoid.
9. How often does the transmission control solenoid need to be replaced in a 2014 GMC Sierra?
Replacement of the transmission control solenoid is not typically part of regular maintenance; it should only be replaced as needed based on diagnostic testing and symptoms.
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