P3451 Dodge Code - Cylinder 7 Deactivation Control Circuit Low
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
- P3451 Dodge indicates Cylinder 7 Deactivation Control Circuit Low.
- 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.
Code P3451 Dodge Description
What are the Possible Causes of the DTC P3451 Dodge?
- 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 P3451 Dodge?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P3451 Dodge 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 P3451 Dodge Code
Q: What does the OBDII code P3451 mean for a Dodge vehicle?
A: Code P3451 indicates a problem with the Cylinder 7 Deactivation Control Circuit, specifically that the circuit voltage is lower than expected.
Q: What are common symptoms of the P3451 code in a Dodge vehicle?
A: Symptoms include reduced engine performance, increased fuel consumption, rough idling, and possible misfires.
Q: What causes the P3451 code in a Dodge vehicle?
A: Common causes include a faulty solenoid for cylinder deactivation, damaged wiring or connectors in the control circuit, or a problem with the engine control module (ECM).
Q: Can I drive my Dodge if the P3451 code is active?
A: Driving may be possible, but it is not recommended as it can lead to further engine damage or reduced efficiency.
Q: How is the P3451 code diagnosed in a Dodge vehicle?
A: Diagnosis typically involves scanning for codes, inspecting the wiring and connectors, testing the cylinder deactivation solenoid, and verifying ECM functionality.
Q: What repairs are typically needed to fix the P3451 code?
A: Repairs may include replacing the cylinder deactivation solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the ECM.
Q: How much does it cost to fix the P3451 code on a Dodge vehicle?
A: Costs vary depending on the issue but can range from $100 for wiring repairs to over $1,000 for ECM replacement.
Q: Can a dirty engine oil cause the P3451 code in a Dodge vehicle?
A: Yes, dirty or low oil levels can affect the operation of the cylinder deactivation solenoid and trigger this code.
Q: Is the P3451 code specific to Dodge vehicles?
A: No, the P3451 code can appear in other vehicles equipped with cylinder deactivation systems, but the specifics may vary by manufacturer.
Q: Will clearing the P3451 code fix the problem permanently?
A: Clearing the code will reset the warning, but the underlying issue must be addressed to prevent the code from returning.
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