AutoCodes – Dodge – P2633 Dodge

P2633 Dodge Code - Fuel Pump 'B' Control Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Fuel Pump Control Circuit. Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump 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: P2633 Dodge indicates Fuel Pump 'B' Control Circuit Low.
Common causes: Common causes include Faulty fuel pump relay, Faulty fuel pump, Fuel pump 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 3,314

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2633 Dodge Description

The Engine Control Module (ECM) monitors the Fuel Pump Control Circuit. The ECM sets the OBDII code when the Fuel Pump Control Circuit is out of factory specifications.

OBDII Code P2633 Dodge - Fuel Pump 'B' Control Circuit Low - AutoCodes.com — P2633 Dodge Code - Fuel Pump 'B' Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2633 Dodge?

Faulty fuel pump relay
Faulty fuel pump
Fuel pump harness is open or shorted
Fuel pump circuit poor electrical connection
Faulty fuel pump control module (if applicable)

How to Fix the DTC P2633 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2633 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.

Need more information about the P2633 Dodge code?

Need more information on how to fix the P2633 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2633 Dodge code diagnosed by a professional: Find a repair shop in your area

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 P2633 Dodge Code

1. What does the OBDII code P2633 mean for a Dodge vehicle?

P2633 indicates a problem with the Fuel Pump 'B' Control Circuit, specifically that the circuit voltage is lower than expected by the powertrain control module (PCM).

2. What are the common symptoms of code P2633 in a Dodge?

Symptoms may include engine stalling, difficulty starting the engine, reduced fuel efficiency, or poor engine performance.

3. What causes the P2633 code to appear on a Dodge?

Causes can include a faulty fuel pump, damaged wiring or connectors in the control circuit, a malfunctioning fuel pump relay, or issues with the PCM.

4. Can I drive my Dodge with a P2633 code?

Itâ€™s not recommended to drive with this code, as it can lead to engine stalling or other issues that may leave you stranded.

5. How do I diagnose the P2633 code on my Dodge?

Start by inspecting the wiring and connectors for damage or corrosion, test the fuel pump for proper operation, and check the fuel pump relay and related components.

6. How can the P2633 code be fixed on a Dodge?

Repairs may include replacing the fuel pump, repairing damaged wiring or connectors, replacing the fuel pump relay, or updating/replacing the PCM if necessary.

7. How much does it cost to repair a P2633 code on a Dodge?

Repair costs can vary but typically range from $150 to $800 depending on whether the fuel pump, wiring, or other components need replacement.

8. How do I prevent the P2633 code from recurring on my Dodge?

Regular maintenance, including inspecting the fuel pump circuit and ensuring connections are clean and secure, can help prevent this code from recurring.

9. Can a faulty PCM cause the P2633 code on a Dodge?

Yes, although itâ€™s less common, a malfunctioning PCM could cause this code if it fails to properly monitor or control the fuel pump circuit.

10. Will clearing the P2633 code fix the issue on my Dodge?

Clearing the code may temporarily remove it, but if the underlying issue isnâ€™t resolved, the code will return. Proper diagnosis and repair are necessary.