AutoCodes – Ford – P1233 2008 Ford Fusion

P1233 2008 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 2008 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 2,889

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 2008 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 2008 Ford Fusion - Fuel Pump Driver Module Disabled Or Off Line - AutoCodes.com — P1233 2008 Ford Fusion Code - Fuel Pump Driver Module Disabled Or Off Line

What does this mean?

What are the Possible Causes of the DTC P1233 2008 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 2008 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 2008 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 2008 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 2008 Ford Fusion Code

1. What does the OBDII code P1233 mean on a 2008 Ford Fusion?

P1233 indicates that the Fuel Pump Driver Module (FPDM) is either disabled or offline, meaning the engine control module (ECM) cannot communicate with the FPDM.

2. What are the common symptoms of a P1233 code on a 2008 Ford Fusion?

Symptoms may include the engine not starting, stalling while driving, hesitation during acceleration, or the fuel pump not running.

3. What causes the P1233 code to appear on a 2008 Ford Fusion?

Common causes include a failed Fuel Pump Driver Module, wiring issues like damaged or corroded connectors, a faulty fuel pump, or a problem with the PCM.

4. Can a bad fuel pump cause a P1233 code on a 2008 Ford Fusion?

Yes, a failing or non-functional fuel pump can trigger the P1233 code if it prevents the FPDM from operating correctly.

5. How do I diagnose a P1233 code on my 2008 Ford Fusion?

Start by checking the FPDM for damage, inspect wiring and connectors for corrosion or loose connections, and test the fuel pump for proper operation. A scan tool may also help verify communication between the modules.

6. Where is the Fuel Pump Driver Module located on a 2008 Ford Fusion?

The FPDM is typically located near the rear of the vehicle, often mounted near the fuel tank or trunk area.

7. Can I drive my 2008 Ford Fusion with a P1233 code?

It is not recommended, as this code typically causes fuel delivery issues, which can lead to stalling or a no-start condition, making the vehicle unreliable.

8. How can I fix a P1233 code on a 2008 Ford Fusion?

Repairs may involve replacing the FPDM, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the fuel pump if it is faulty.

9. How much does it cost to fix a P1233 code on a 2008 Ford Fusion?

The cost depends on the specific issue. Replacing the FPDM can cost $150â€“$300, while wiring repairs or a fuel pump replacement may cost more depending on labor rates and parts pricing.

10. Can a P1233 code be caused by a dead battery or electrical issues?

Yes, a weak or dead battery, as well as other electrical issues, can cause communication problems between the PCM and FPDM, triggering the P1233 code.