AutoCodes – Chevrolet – P0966 2016 Chevrolet Silverado

P0966 2016 Chevrolet Silverado Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

Quick Answer

The pressure control solenoid 2 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly harness is open or shorted. 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: P0966 2016 Chevrolet Silverado indicates Pressure Control Solenoid Valve 2 Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid, Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly harness is open or shorted.
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 275

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0966 2016 Chevrolet Silverado Description

The pressure control solenoid 2 is part of the control solenoid valve assembly which has no serviceable parts. The normally high-pressure control solenoid 2 regulates and directs the pressure control solenoid 2 oil pressure to the 3-5 reverse clutch regulator valve and 3-5 reverse clutch boost valve. Increasing pressure control solenoid 2 pressure increases pressure to the 3-5 reverse clutch. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 2 through a low side driver. Decreasing the current to the pressure control solenoid 2 increases pressure control solenoid 2 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the pressure control solenoid 2 decreases pressure control solenoid 2 oil pressure by opening the solenoid exhaust port. Pressure control solenoid 2 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground on the clutch pressure control solenoid 2 control circuit for 1 s.

OBDII Code P0966 2016 Chevrolet Silverado - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage - AutoCodes.com — P0966 2016 Chevrolet Silverado Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0966 2016 Chevrolet Silverado?

Low transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness is open or shorted
Control Solenoid Valve Assembly circuit poor electrical connection

How to Fix the DTC P0966 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 P0966 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.

Need more information about the P0966 2016 Chevrolet Silverado 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 P0966 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0966 in a 2016 Chevrolet Silverado?

The common symptoms include erratic shifting, transmission slippage, poor fuel economy, and the illumination of the Check Engine Light.

2. What does the Pressure Control Solenoid Valve 2 Control Circuit Low Voltage mean for a 2016 Chevrolet Silverado?

This code indicates that the powertrain control module has detected low voltage in the circuit responsible for controlling the pressure control solenoid valve 2 in the transmission.

3. What are some possible causes of OBDII code P0966 in a 2016 Chevrolet Silverado?

Potential causes include a faulty pressure control solenoid valve 2, damaged wiring or connectors in the circuit, low transmission fluid levels, or a malfunctioning powertrain control module.

4. How serious is OBDII code P0966 in a 2016 Chevrolet Silverado?

While the vehicle may still be operational with this code, it is important to address it promptly to prevent further damage to the transmission and maintain optimal performance.

5. Can I continue to drive my 2016 Chevrolet Silverado with OBDII code P0966?

It is not recommended to drive the vehicle extensively with this code present, as it can lead to transmission issues and potential drivability problems. It is advisable to have the issue diagnosed and repaired as soon as possible.

6. How can I diagnose OBDII code P0966 in my 2016 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the wiring and connectors related to the pressure control solenoid valve 2, and testing the solenoid valve itself for proper operation.

7. Can I repair OBDII code P0966 in my 2016 Chevrolet Silverado myself?

Depending on your skill level and access to tools, you may be able to address this issue yourself by replacing the faulty pressure control solenoid valve 2 or repairing any damaged wiring or connectors. However, professional diagnosis and repair are recommended for complex transmission issues.

8. How much does it cost to repair OBDII code P0966 in a 2016 Chevrolet Silverado?

The cost of repair can vary depending on the root cause of the issue, labor rates, and parts prices. It is advisable to obtain estimates from reputable mechanics or repair shops to determine the exact cost.

9. How do I prevent OBDII code P0966 from recurring in my 2016 Chevrolet Silverado?

Regular maintenance, such as checking and maintaining proper transmission fluid levels, can help prevent this code from recurring. Additionally, addressing any underlying issues promptly can help avoid future occurrences.

10. Is OBDII code P0966 covered under any warranties for a 2016 Chevrolet Silverado?

Depending on the vehicle's warranty coverage and mileage, this issue may be covered under the powertrain warranty. It is recommended to check with your dealership or refer to your warranty documentation for specific coverage details.