AutoCodes – Cadillac – P2718 Cadillac

P2718 Cadillac Code - Pressure Control Solenoid 4 Control Circuit Open

Quick Answer

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty 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: P2718 Cadillac indicates Pressure Control Solenoid 4 Control Circuit Open.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty 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 490

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 P2718 Cadillac Description

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 4 regulates and directs oil pressure to the 2-6 clutch regulator valve. Increasing pressure control solenoid 4 pressure increases pressure to the 2-6 clutch regulator valve. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 4 through a low-side driver. Increasing the current to pressure control solenoid 4 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 4 decreases oil pressure by opening the exhaust port. Pressure control solenoid 4 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.

OBDII Code P2718 Cadillac - Pressure Control Solenoid 4 Control Circuit Open - AutoCodes.com — P2718 Cadillac Code - Pressure Control Solenoid 4 Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2718 Cadillac?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2718 Cadillac?

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 P2718 Cadillac 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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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 P2718 Cadillac Code

1. What are the common symptoms of OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- Common symptoms include harsh shifting, transmission slipping, poor fuel economy, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- The possible causes include a faulty pressure control solenoid, damaged wiring or connectors, low transmission fluid levels, or internal transmission issues.

3. How can I diagnose OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, inspecting the wiring and connectors, and testing the pressure control solenoid.

4. Is it safe to continue driving with OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- It is not recommended to continue driving with this code as it can lead to further transmission damage and potential safety hazards on the road.

5. Can I repair OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4 myself?

- Depending on your automotive knowledge and experience, you may be able to replace the pressure control solenoid or repair wiring issues yourself. However, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. How much does it typically cost to repair OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from $200 to $800 or more, including parts and labor.

7. Are there any preventive maintenance tips to avoid OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- Regularly checking and changing the transmission fluid as recommended by the manufacturer, and addressing any transmission issues promptly can help prevent this code from occurring.

8. Can a faulty pressure control solenoid cause other OBDII codes besides P2718 in a Cadillac?

- Yes, a faulty pressure control solenoid can cause other transmission-related OBDII codes to appear, so it's important to address any issues promptly to prevent further damage.

9. What is the role of the pressure control solenoid in a Cadillac's transmission system?

- The pressure control solenoid regulates the hydraulic pressure within the transmission, helping to control gear shifts and ensure smooth operation of the transmission.

10. How long does it typically take to repair OBDII code P2718 in a Cadillac related to Pressure Control Solenoid 4?

- The repair time can vary depending on the specific issue and the mechanic's workload, but it may take a few hours to a full day to diagnose and repair the problem.