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P1236 1999 Ford F150 Code - Fuel Pump Control Out Of Range

Quick Answer

The diagnostic trouble code P1236 in a 1999 Ford F150 indicates that the fuel pump control circuit is operating outside of the expected range. Common causes include Faulty fuel pump control module, Corroded or damaged wiring in the fuel pump circuit, Loose connections or poor electrical grounding. 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
P1236 1999 Ford F150 indicates Fuel Pump Control Out Of Range .
Common causes
Common causes include Faulty fuel pump control module, Corroded or damaged wiring in the fuel pump circuit, Loose connections or poor electrical grounding.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1236 1999 Ford F150 Description

The diagnostic trouble code P1236 in a 1999 Ford F150 indicates that the fuel pump control circuit is operating outside of the expected range. This issue can have a significant impact on the vehicle's performance and overall functionality. The fuel pump control module plays a crucial role in regulating the fuel pump's operation, ensuring that the right amount of fuel is delivered to the engine at all times. When this control module malfunctions or operates out of range, it can lead to various problems that affect the vehicle's drivability and efficiency.

OBDII Code P1236 1999 Ford F150 - Fuel Pump Control Out Of Range
P1236 1999 Ford F150 Code - Fuel Pump Control Out Of Range

Common Causes of P1236 1999 Ford F150

  1. Faulty fuel pump control module
  2. Corroded or damaged wiring in the fuel pump circuit
  3. Loose connections or poor electrical grounding
  4. Issues with the fuel pump relay
  5. Fuel pump failure or blockage

Symptoms of P1236 1999 Ford F150

  1. Engine misfires or hesitation during acceleration
  2. Difficulty starting the vehicle
  3. Reduced fuel efficiency
  4. Engine stalling or shutting off unexpectedly
  5. Illumination of the check engine light

How to Fix P1236 1999 Ford F150

  1. Begin by conducting a thorough inspection of the fuel pump control module, wiring, and connections to identify any visible damage or corrosion.
  2. Test the fuel pump control module using a multimeter to check for proper voltage and continuity.
  3. Inspect the fuel pump relay and replace it if necessary.
  4. If the fuel pump control module is found to be faulty, replace it with a new unit and ensure proper programming if required.
  5. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P1236 1999 Ford F150

The cost of repairing a P1236 code in a 1999 Ford F150 can vary depending on the specific cause of the issue and the parts required for the repair. On average, the cost of replacing a fuel pump control module can range from $200 to $500, including parts and labor. Additional costs may apply if wiring repairs or other components need attention. It's important to note that diagnostic time and labor rates at auto repair shops can influence the overall cost, with rates typically ranging between $80 and $150 per hour. Factors such as location, vehicle make and model, and engine type can also impact the final repair bill. For a more accurate estimate, it's recommended to consult with a local auto repair shop.

What does this mean?

Tech Notes for P1236 1999 Ford F150

Note: For LS6/LS8 and Thunderbird, the FPDM functions are incorporated in the Rear Electronics Module (REM). Also, the REM does not use an FPM circuit. Diagnostic information is sent on the communication link.

P1236 indicates that the FPDM has detected an invalid or missing FP circuit signal from the PCM. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. The PCM will set the DTC when the message is received.

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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 P1236 1999 Ford F150 Code

1. What are the common symptoms of OBDII code P1236 in a 1999 Ford F150?

The common symptoms of P1236, Fuel Pump Control Out Of Range, in a 1999 Ford F150 include engine stalling, difficulty starting the vehicle, and lack of power during acceleration.

2. What are the possible causes of OBDII code P1236 in a 1999 Ford F150?

The possible causes of code P1236 in a 1999 Ford F150 are a faulty fuel pump driver module, damaged wiring or connectors in the fuel pump circuit, or a malfunctioning fuel pump.

3. How can I diagnose the issue related to OBDII code P1236 in my 1999 Ford F150?

To diagnose the issue related to code P1236, you can use a scan tool to check for any other related trouble codes, inspect the fuel pump driver module and its connections, and test the fuel pump's operation.

4. Can I still drive my 1999 Ford F150 with OBDII code P1236 present?

It is not recommended to drive your 1999 Ford F150 with code P1236 present, as it can lead to potential engine stalling and unsafe driving conditions. It is best to address the issue promptly.

5. How can I repair OBDII code P1236 in my 1999 Ford F150?

To repair code P1236 in a 1999 Ford F150, you may need to replace the fuel pump driver module, repair any damaged wiring or connectors in the fuel pump circuit, or replace the fuel pump itself if necessary.

6. Is it possible to reset OBDII code P1236 in a 1999 Ford F150 without fixing the underlying issue?

Resetting the code without addressing the underlying issue will only clear the code temporarily. It is important to diagnose and repair the root cause of P1236 to prevent it from reoccurring.

7. How long does it typically take to fix OBDII code P1236 in a 1999 Ford F150?

The time it takes to fix code P1236 in a 1999 Ford F150 can vary depending on the exact cause of the issue and the availability of parts. It may take a few hours to a full day to complete the repair.

8. Can a DIY enthusiast fix OBDII code P1236 in a 1999 Ford F150?

Yes, a DIY enthusiast with the necessary tools and knowledge can fix code P1236 in a 1999 Ford F150, especially if they are comfortable working on automotive electrical systems.

9. Will OBDII code P1236 cause any long-term damage to my 1999 Ford F150 if left unaddressed?

Leaving code P1236 unaddressed in a 1999 Ford F150 can potentially lead to long-term damage, such as fuel pump failure or further issues with the fuel system. It is best to resolve the issue promptly.

10. How much can I expect to spend on repairing OBDII code P1236 in a 1999 Ford F150?

The cost of repairing code P1236 in a 1999 Ford F150 can vary depending on the specific repairs needed, such as replacing the fuel pump driver module or the fuel pump itself. Costs can range from a few hundred to over a thousand dollars.

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