AutoCodes – Chevrolet – P0877 2015 Chevrolet Silverado

P0877 2015 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 4 Circuit Low Voltage

Quick Answer

The Transmission Fluid Pressure (TFP) switch 4 is part of the Transmission Control Solenoid Valve Assembly which has no serviceable parts. 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: P0877 2015 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 4 Circuit Low 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.

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Code Popularity 396

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 Aug 03, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0877 2015 Chevrolet Silverado Description

The Transmission Fluid Pressure (TFP) switch 4 is part of the Transmission Control Solenoid Valve Assembly which has no serviceable parts. The Transmission Control Module (TCM) supplies a signal circuit to the TFP switch 4. The TFP switch 4 has an internal case ground. TFP switch 4 is normally closed or LOW. When oil pressure is present at the TFP switch 4, the switch is open or HIGH. The normal LOW pressure control solenoid 5 controls pressure to the 1-2-3-4 clutch regulator valve. The TCM monitors the TFP switch 4 to determine the position of the 1-2-3-4 clutch regulator valve. When the 1-2-3-4 clutch is commanded OFF, pressure is present on the TFP switch 4. When the 1-2-3-4 clutch is commanded ON, the 1-2-3-4 clutch regulator valve moves and pressure to the TFP switch 4 is exhausted through the 1-2-3-4 clutch regulator valve. The Diagnostic Trouble Code (DTC) will be set when the TCM detects that the TFP switch 4 signal voltage remains LOW after the 1-2-3-4 clutch transitions from a HIGH pressure state to a LOW pressure state. The TCM counts each incident. The DTC sets when 5 counts are accumulated.

OBDII Code P0877 2015 Chevrolet Silverado - Transmission Fluid Pressure Switch 4 Circuit Low Voltage - AutoCodes.com — P0877 2015 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 4 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0877 2015 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

How to Fix the DTC P0877 2015 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 P0877 2015 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.

Need more information about the P0877 2015 Chevrolet Silverado code?

Need more information on how to fix the P0877 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0877 2015 Chevrolet Silverado Code

1. What does the OBDII code P0877 mean on a 2015 Chevrolet Silverado?

P0877 indicates a "Transmission Fluid Pressure Switch 4 Circuit Low Voltage," meaning the transmission control module (TCM) has detected low voltage in the pressure switch 4 circuit.

2. What are the common symptoms of a P0877 code on a 2015 Chevrolet Silverado?

Symptoms may include erratic shifting, the transmission staying in one gear (limp mode), decreased fuel efficiency, and the check engine light being illuminated.

3. What causes the P0877 code to appear on a 2015 Chevy Silverado?

Common causes include low transmission fluid, a faulty transmission fluid pressure switch, damaged wiring or connectors in the pressure switch circuit, or a failing transmission control module (TCM).

4. Can low transmission fluid cause the P0877 code?

Yes, low or contaminated transmission fluid can cause insufficient pressure, leading to the P0877 code.

5. How do you diagnose the P0877 code on a 2015 Chevrolet Silverado?

Diagnosis involves checking the transmission fluid level and condition, inspecting the wiring and connectors for damage, and testing the transmission fluid pressure switch and related circuits with a multimeter.

6. Can you drive with a P0877 code on a 2015 Chevrolet Silverado?

Driving with this code is not recommended as it can lead to further transmission damage and potential safety issues due to erratic shifting or limp mode.

7. How do you fix the P0877 code on a 2015 Chevy Silverado?

Repairs may include topping off or replacing transmission fluid, repairing or replacing damaged wiring or connectors, replacing the faulty transmission fluid pressure switch, or reprogramming/replacing the TCM.

8. How much does it cost to fix a P0877 code on a 2015 Chevrolet Silverado?

Repair costs vary depending on the issue but can range from $100 for a fluid change to $300-$700 for sensor or wiring repairs. TCM replacement may cost $500-$1,000 or more.

9. Can a bad transmission fluid pressure switch cause other problems?

Yes, a faulty pressure switch can lead to incorrect transmission pressure readings, causing poor performance, erratic shifting, and potential transmission damage over time.

10. Is it necessary to clear the P0877 code after repairs on a 2015 Chevrolet Silverado?

Yes, after completing repairs, the code should be cleared with an OBDII scanner, and a test drive should be performed to ensure the issue is resolved.