AutoCodes – Ford – P1233 2012 Ford Fusion

P1233 2012 Ford Fusion Code - Fuel Pump Driver Module Disabled Or Off Line

Quick Answer

The Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit from the Fuel Pump Driver Module (FPDM). Common causes include Inertia fuel shutoff (IFS) switch needs to be reset, Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) 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: P1233 2012 Ford Fusion indicates Fuel Pump Driver Module Disabled Or Off Line .
Common causes: Common causes include Inertia fuel shutoff (IFS) switch needs to be reset, Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) 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 4,411

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 Jul 20, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1233 2012 Ford Fusion Description

The Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit from the Fuel Pump Driver Module (FPDM). With the key on, the FPDM continuously sends a duty cycle signal to the PCM through the FPM circuit. The test fails if the PCM stops receiving the duty cycle signal.

OBDII Code P1233 2012 Ford Fusion - Fuel Pump Driver Module Disabled Or Off Line - AutoCodes.com — P1233 2012 Ford Fusion Code - Fuel Pump Driver Module Disabled Or Off Line

What does this mean?

What are the Possible Causes of the DTC P1233 2012 Ford Fusion?

Inertia fuel shutoff (IFS) switch needs to be reset
Faulty Fuel Pump Driver Module (FPDM)
Fuel Pump Driver Module (FPDM) harness is open or shorted
Fuel Pump Driver Module (FPDM) circuit poor electrical connection
Faulty Inertia Fuel Shutoff (IFS) switch
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1233 2012 Ford Fusion?

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

For some FORD models:
1. Disconnect the inertia switch harness connector
2. Turn key to ON position (Engine OFF)
3. Measure voltage of circuit between inertia switch harness connector and ground
4. If battery voltage is found, replaced Inertia Switch
5. Clear codes.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1233 2012 Ford Fusion 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 P1233 2012 Ford Fusion 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 P1233 2012 Ford Fusion Code

1. What does OBDII code P1233 mean on a 2012 Ford Fusion?

Code P1233 indicates that the Fuel Pump Driver Module (FPDM) has been disabled or is offline, preventing proper fuel pump operation.

2. What are the common symptoms of code P1233 on a 2012 Ford Fusion?

Symptoms may include the engine failing to start, stalling while driving, reduced power, or a lack of fuel delivery to the engine.

3. What causes code P1233 on a 2012 Ford Fusion?

Common causes include a faulty Fuel Pump Driver Module (FPDM), wiring or connection issues, a defective fuel pump, or a blown fuse.

4. Can a bad fuel pump cause code P1233 on a 2012 Ford Fusion?

Yes, a failing or non-functional fuel pump can trigger the P1233 code as it may interrupt communication with the FPDM.

5. How do I diagnose code P1233 on a 2012 Ford Fusion?

Diagnosis typically involves checking the FPDM for damage, testing the fuel pump, inspecting wiring and connectors for corrosion or breaks, and verifying fuse integrity.

6. Where is the Fuel Pump Driver Module located on a 2012 Ford Fusion?

The FPDM is usually located near the rear of the vehicle, often behind a trim panel in the trunk or under the rear seat.

7. Can I drive my 2012 Ford Fusion with code P1233 active?

It is not recommended to drive with this code, as it may lead to the vehicle stalling or failing to start, posing a safety risk.

8. How do I fix code P1233 on a 2012 Ford Fusion?

Repairs may include replacing the FPDM, repairing damaged wiring or connectors, replacing the fuel pump, or replacing a blown fuse.

9. What tools do I need to troubleshoot code P1233 on a 2012 Ford Fusion?

Basic tools include a multimeter for testing electrical circuits, a scan tool to clear and monitor the code, and wrenches or screwdrivers for accessing components.

10. Is code P1233 a common issue on 2012 Ford Fusions?

While not extremely common, this issue can occur due to wear and tear on the FPDM, wiring, or fuel pump, especially in older or high-mileage vehicles.