AutoCodesFord – P1235 Ford

P1235 Ford Code - Fuel Pump Control Out of Range

Quick Answer

The P1235 code indicates the Fuel Pump Drive Module (FPDM) detected an invalid or missing Fuel Pump (FP) circuit signal from the Powertrain Control Module (PCM). Common causes include Faulty Fuel Pump Drive Module (FPDM), FPDM harness is open or shorted, FPDM circuit poor electrical connection. 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
P1235 Ford indicates Fuel Pump Control Out of Range.
Common causes
Common causes include Faulty Fuel Pump Drive Module (FPDM), FPDM harness is open or shorted, FPDM circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 67,031
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jun 26, 2019
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Code P1235 Ford Description

The P1235 code indicates the Fuel Pump Drive Module (FPDM) detected an invalid or missing Fuel Pump (FP) circuit signal from the Powertrain Control Module (PCM). The FPDM sends a message to the PCM through the FPM circuit, indicating this failure was detected. The PCM sets the DTC when the message is received.
OBDII Code P1235 Ford - Fuel Pump Control Out of Range - AutoCodes.com
P1235 Ford Code - Fuel Pump Control Out of Range

What are the Possible Causes of the DTC P1235 Ford?

  • Faulty Fuel Pump Drive Module (FPDM)
  • FPDM harness is open or shorted
  • FPDM circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1235 Ford?

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 P1235 Ford 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 P1235 Ford code?

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Information for Specific Ford Models

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 P1235 Ford Code

1. What does the OBDII code P1235 mean on a Ford vehicle?

P1235 indicates an issue with the Fuel Pump Driver Module (FPDM) detecting an out-of-range signal, which may affect fuel pump operation.

2. What are the common symptoms of code P1235 in a Ford?

Symptoms include engine stalling, poor acceleration, difficulty starting, reduced fuel efficiency, or the engine not starting at all.

3. What causes the P1235 code to appear on a Ford vehicle?

Common causes include a faulty Fuel Pump Driver Module (FPDM), damaged wiring or connectors, a failing fuel pump, or a PCM (Powertrain Control Module) issue.

4. Can a faulty fuel pump trigger the P1235 code?

Yes, a failing fuel pump that draws abnormal current or has irregular operation can cause this code.

5. How do I diagnose the P1235 code on a Ford?

Start by inspecting the FPDM, wiring, and connectors for damage. Use a multimeter to test for proper voltage and continuity, and check fuel pump operation.

6. Can I drive my Ford with the P1235 code active?

It’s not recommended, as the issue can lead to engine stalling or failure to start, potentially leaving you stranded.

7. How do I fix the P1235 code on a Ford?

Repairs may involve replacing the Fuel Pump Driver Module, repairing or replacing damaged wiring, or replacing the fuel pump if it’s faulty.

8. Where is the Fuel Pump Driver Module located in a Ford vehicle?

The FPDM is typically located near the fuel tank or on the rear frame rail, but exact placement may vary by model.

9. Can a bad ground connection cause the P1235 code?

Yes, poor ground connections can lead to communication issues between the FPDM and the PCM, triggering the code.

10. Does the P1235 code always mean the FPDM is faulty?

No, while the FPDM is a common cause, the issue could also stem from wiring problems, a bad fuel pump, or a PCM-related issue. Proper diagnosis is essential.

Discuss the causes and fixes for P1235 Ford OBDII Code

  • i have P1235 code fuel pump have replace and fuel pump driver control module still no start but engine crank.

  • What model an year is your Ford?

  • I got code p1235 Code on a 02 Ford Taurus and I change the fuel pump driver control module still won't start

  • Do you have fuel pressure at the engine compartment?

  • No I don't have fuel at all

  • i have a 2007 ford f150 fx 2 sport was driving it the other day and it was raining and it just died now all it does is roll over . i bypassed the air conditioner and now it only rolls no start. can someone help me
    please????

  • If the engine is not starting and you have the P1235 code, then the most likely cause is the Fuel Pump Drive Module (FPDM).

  • I have an 03 Mercury Grand Marquis 4.6 L. It has a p1235 code. It starts and runs and drives just fine . Why am I getting this code? I just replaced the fuel filter and the light came on. The filter is installed correctly.

  • Do you have any other symptoms? if you don't, then you could just clear the code. It's common the set the P1235 right after replacing the fuel filter.

  • I have an 07 Ford Five Hundred that's got a P1235 code. The car starts without issue but when it's hot it struggles when I lift off the gas and will shut off while driving if I don't press on the gas soon enough. The mass air flow sensor was just replaced but then this code popped up and the car is still struggling when hot and shutting off. Do I just need to replace the FPDM or do a whole new fuel pump too?

  • Unfortunately I haven't had that problem, but according to a national database of repairs, the Fuel Pump Drive Module (FPDM) is the most common cause of the problem.

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