P0873 2015 GMC Sierra Code - Transmission Fluid Pressure Switch 3 Circuit High Voltage
Quick Answer
The transmission fluid pressure switch, also known as the pressure switch manifold, is a multiple switch assembly made up of 3 normally open pressure switches and 1 normally closed pressure switch. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission 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
- P0873 2015 GMC Sierra indicates Transmission Fluid Pressure Switch 3 Circuit High Voltage.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission 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 P0873 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0873 2015 GMC Sierra?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Transmission Control Solenoid Valve Assembly
- Transmission Control Solenoid Valve Assembly harness is open or shorted
- Transmission Control Solenoid Valve Assembly circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
How to Fix the DTC P0873 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 P0873 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 P0873 2015 GMC Sierra Code
What does the OBDII code P0873 mean on a 2015 GMC Sierra?
1. P0873 indicates a high voltage issue in the Transmission Fluid Pressure Switch 3 Circuit, which monitors transmission fluid pressure to ensure proper operation. 2.
What are the common symptoms of code P0873 in a 2015 GMC Sierra?
Symptoms may include harsh or delayed shifting, the transmission slipping, the vehicle going into limp mode, or the check engine light turning on. 3.
What causes P0873 in a 2015 GMC Sierra?
Common causes include a faulty transmission fluid pressure switch, damaged or corroded wiring, a defective transmission control module (TCM), or low/contaminated transmission fluid. 4.
Can low transmission fluid cause a P0873 code?
Yes, low or contaminated transmission fluid can affect pressure readings and trigger the P0873 code. 5.
How do you diagnose the P0873 code on a 2015 GMC Sierra?
Diagnosis involves checking the transmission fluid level, inspecting wiring and connectors for damage, testing the pressure switch, and scanning the TCM for additional codes. 6.
Is it safe to drive with the P0873 code on a 2015 GMC Sierra?
Driving with this code is not recommended as it can lead to transmission damage or unsafe driving conditions if the issue affects shifting performance. 7.
How do you fix the P0873 code on a 2015 GMC Sierra?
Repairs may include replacing the transmission fluid pressure switch, repairing damaged wiring or connectors, replacing the TCM if faulty, or servicing the transmission fluid. 8.
How much does it cost to fix the P0873 code on a 2015 GMC Sierra?
Repair costs vary but typically range from $150 to $500, depending on whether the issue is with the pressure switch, wiring, or TCM. 9.
Can a faulty TCM cause the P0873 code in a 2015 GMC Sierra?
Yes, a malfunctioning TCM can misinterpret pressure readings and trigger the P0873 code. 10.
Will clearing the code solve the P0873 issue on a 2015 GMC Sierra?
Clearing the code may temporarily turn off the check engine light, but the underlying problem must be fixed to prevent the code from returning.
Discuss the causes and fixes for P0873 2015 GMC Sierra OBDII Code
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