P0873 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0873 2016 Chevrolet Silverado?
- 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 2016 Chevrolet Silverado?
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 2016 Chevrolet Silverado 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 2016 Chevrolet Silverado Code
1. What does the OBDII code P0873 mean on a 2016 Chevrolet Silverado?
P0873 indicates a "Transmission Fluid Pressure Switch 3 Circuit High Voltage," meaning the transmission control module (TCM) has detected high voltage in the circuit for the third pressure switch.
2. What are the common symptoms of code P0873 in a 2016 Chevrolet Silverado?
Symptoms include harsh or delayed shifting, slipping gears, the transmission going into limp mode, or the check engine light being illuminated.
3. What causes the P0873 code to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty transmission fluid pressure switch, damaged wiring or connectors in the pressure switch circuit, low transmission fluid, or a malfunctioning TCM.
4. Can low transmission fluid cause the P0873 code in a 2016 Chevrolet Silverado?
Yes, low transmission fluid can cause improper pressure readings, potentially triggering the P0873 code.
5. How do you diagnose the P0873 code in a 2016 Chevrolet Silverado?
Diagnosis involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the pressure switch for proper function, and scanning the TCM for related codes.
6. Is it safe to drive a 2016 Chevrolet Silverado with the P0873 code?
Driving with this code is not recommended, as it can lead to further transmission damage or unsafe driving conditions due to shifting issues.
7. How do you fix the P0873 code on a 2016 Chevrolet Silverado?
Repairs may include replacing the faulty transmission fluid pressure switch, repairing damaged wiring or connectors, topping off or flushing the transmission fluid, or reprogramming or replacing the TCM.
8. How much does it cost to repair the P0873 code on a 2016 Chevrolet Silverado?
Repair costs vary but typically range from $100 to $500, depending on whether the issue is with the pressure switch, wiring, or TCM.
9. Can a bad TCM cause the P0873 code on a 2016 Chevrolet Silverado?
Yes, a malfunctioning transmission control module can misinterpret pressure readings and trigger the P0873 code.
10. What tools are needed to troubleshoot the P0873 code on a 2016 Chevrolet Silverado?
You’ll need an OBDII scanner, a multimeter for checking voltage and continuity, and possibly a transmission pressure gauge for further testing.
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