AutoCodes – Generic – P1236

P1236 Code - Fuel Pump Control Out Of Range

Quick Answer

The P1236 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: P1236 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.

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Code Popularity 34,302

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
Cost to Diagnose
FAQs
Comments
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Code P1236 Description

The P1236 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 P1236 - Fuel Pump Control Out Of Range - AutoCodes.com — P1236 Code - Fuel Pump Control Out Of Range

What does this mean?

What are the Possible Causes of the DTC P1236?

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 P1236?

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 P1236 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 P1236 code?

Need more information on how to fix the P1236 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1236 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1236 BMW — Fuel Pump Relay Activation
P1236 Buick — Fuel Injector 5 Control Circuit Shorted
P1236 Cadillac — Fuel Injector 5 Control Circuit Shorted
P1236 Chevrolet — Fuel Injector 5 Control Circuit Shorted
P1236 Ford — Fuel Pump Control Out of Range
P1236 GMC — Fuel Injector 5 Control Circuit Shorted
P1236 Infiniti — Throttle Control Motor Circuit Short Bank 2
P1236 Lexus — High Pressure Fuel Pump Number 2 Circuit
P1236 Mazda — Fuel Pump Driver Module Disabled Or Off Line
P1236 MINI — Fuel Pump Relay Activation
P1236 Mitsubishi — A/D Converter
P1236 Nissan — Throttle Control Motor Circuit Short Bank 2
P1236 Saab — Intake Manifold Air Control Solenoid Outer Flap Open Circuit/Short To Ground
P1236 Toyota — High Pressure Fuel Pump Number 2 Circuit

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 Code

1. What are the common symptoms of OBDII code P1236 (Fuel Pump Control Out Of Range)?

- Common symptoms include engine stalling, difficulty starting the vehicle, and a lack of power during acceleration.

2. What are the possible causes of OBDII code P1236?

- The code P1236 can be triggered by issues such as a faulty fuel pump driver module, wiring problems, or a defective fuel pump.

3. How can I diagnose the cause of OBDII code P1236?

- To diagnose the cause of P1236, you can use a scan tool to check for any related codes, inspect the wiring connections, and test the fuel pump driver module.

4. Can a bad fuel pump cause OBDII code P1236?

- Yes, a failing or malfunctioning fuel pump can trigger code P1236 due to issues with fuel delivery to the engine.

5. Is it safe to continue driving with OBDII code P1236 present?

- It is not recommended to drive with code P1236 active, as it can lead to potential engine stalling and safety hazards on the road.

6. How can I repair OBDII code P1236?

- Repairing code P1236 involves addressing the root cause, which may include replacing the fuel pump driver module, repairing wiring issues, or replacing the fuel pump.

7. Can a DIY enthusiast fix OBDII code P1236 at home?

- While some aspects of diagnosing and repairing P1236 can be done at home, it is recommended to seek professional help for accurate diagnosis and proper repair.

8. How much does it typically cost to fix OBDII code P1236?

- The cost of fixing code P1236 can vary depending on the root cause and the labor rates in your area. It may range from a few hundred to over a thousand dollars.

9. Are there any preventive measures to avoid OBDII code P1236 in the future?

- Regular maintenance of your vehicle, including checking the fuel system components and addressing any issues promptly, can help prevent code P1236 from occurring.

10. Can a faulty fuel pump driver module be repaired, or does it need to be replaced?

- In most cases, a faulty fuel pump driver module needs to be replaced rather than repaired to ensure proper functioning of the fuel pump control system.