AutoCodes – Generic – P1255

P1255 Code - Fuel Pump Control Module Driver High Temperature

Quick Answer

The Engine Control Module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump Control Module 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: P1255 indicates Fuel Pump Control Module Driver High Temperature.
Common causes: Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump Control Module 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 29,246

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1255 Description

The Engine Control Module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. The voltage from the ECM to the fuel pump control module remains for 2 seconds unless the engine is cranked or run. While this voltage is being received, the fuel pump control module supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel pressure. The Diagnostic Trouble Code (DTC) will be set if the fuel pump control module detects an over-temperature fault.
(Actual Fuel Pump Control Module looks may be different)

OBDII Code P1255 - Fuel Pump Control Module Driver High Temperature - AutoCodes.com — P1255 Code - Fuel Pump Control Module Driver High Temperature

What does this mean?

What are the Possible Causes of the DTC P1255?

Faulty Fuel Pump Control Module
Fuel Pump Control Module harness is open or shorted
Fuel Pump Control Module circuit poor electrical connection

How to Fix the DTC P1255?

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 P1255 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 P1255 code?

Need more information on how to fix the P1255 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P1255 Audi — Engine Coolant Temperature Sensor Circuit Short To Ground
P1255 Buick — Fuel Pump Control Module Driver High Temperature
P1255 Cadillac — Fuel Pump Control Module Driver High Temperature
P1255 Chevrolet — Fuel Pump Control Module Driver High Temperature
P1255 Ford — Pedal Correlation PDS2 and LPDS Low
P1255 GMC — Fuel Pump Control Module Driver High Temperature
P1255 Volkswagen — Engine Coolant Temperature Sensor Circuit Short To Ground

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.