AutoCodes – Jeep – P3460 Jeep

P3460 Jeep Code - Cylinder 8 Deactivation Control Circuit High

Quick Answer

When all the criteria has been met, power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition. 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: P3460 Jeep indicates Cylinder 8 Deactivation Control Circuit High.
Common causes: Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition.
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 1,348

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P3460 Jeep Description

When all the criteria has been met, power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifter that coincide with each particular solenoid. The oil pressure pushes in the locking pins that allows the lifter to collapse, decoupling the valves and camshafts.

OBDII Code P3460 Jeep - Cylinder 8 Deactivation Control Circuit High - AutoCodes.com — P3460 Jeep Code - Cylinder 8 Deactivation Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P3460 Jeep?

Low oil pressure
Restricted oil passage
Engine mechanical condition
Faulty Multiple Displacement System (MDS) Solenoid
Multiple Displacement System (MDS) Solenoid harness is open or shorted
Multiple Displacement System (MDS) Solenoid circuit poor electrical connection

How to Fix the DTC P3460 Jeep?

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 does this mean?

Code Tech Notes

Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P3460 Jeep 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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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 P3460 Jeep Code

1. What are the common symptoms of OBDII code P3460 in a Jeep related to Cylinder 8 Deactivation Control Circuit High?

The common symptoms include rough idling, decreased fuel efficiency, and the Check Engine light being illuminated.

2. What are the possible causes of the Cylinder 8 Deactivation Control Circuit High code in a Jeep?

Potential causes can include a faulty solenoid, wiring issues, a malfunctioning engine control module (ECM), or mechanical problems within the engine.

3. How can I diagnose the Cylinder 8 Deactivation Control Circuit High code in my Jeep?

Diagnosis typically involves using an OBDII scanner to read the code, checking the wiring and connections related to cylinder deactivation, and testing the solenoid for proper operation.

4. Can I continue driving my Jeep with the P3460 code present?

It is not recommended to continue driving with the code active, as it can lead to further engine damage and decreased performance over time.

5. How can I repair the Cylinder 8 Deactivation Control Circuit High code in my Jeep?

Repair steps may include replacing the faulty solenoid, repairing any damaged wiring, resetting the ECM, or addressing any mechanical issues causing the code.

6. Is it possible to reset the Check Engine light after fixing the P3460 code in my Jeep?

Yes, the Check Engine light can be reset using an OBDII scanner or by disconnecting the car's battery for a few minutes.

7. Will the P3460 code in a Jeep cause any long-term damage if not addressed promptly?

Continuing to drive with the code can potentially cause damage to the engine, affect fuel efficiency, and lead to more severe issues over time.

8. How much does it typically cost to repair the Cylinder 8 Deactivation Control Circuit High code in a Jeep?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from $200 to $800 or more, including parts and labor.

9. Can a DIY enthusiast fix the P3460 code in a Jeep, or is it better to seek professional help?

While some experienced DIY enthusiasts may be able to diagnose and repair the issue, it is often recommended to seek professional help due to the complexity of the system.

10. How can I prevent the recurrence of the Cylinder 8 Deactivation Control Circuit High code in my Jeep?

Regular maintenance, including checking for loose connections, monitoring engine performance, and addressing any issues promptly, can help prevent the code from recurring.