AutoCodes – Chrysler – P0628 Chrysler

P0628 Chrysler Code - Low Voltage Detected At The Fuel Lift Pump

Quick Answer

The Powertrain Control Module (PCM) monitors the Fuel Lift Pump. Common causes include Faulty Fuel Lift Pump, Fuel Lift Pump harness is open or shorted, Fuel Lift Pump 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: P0628 Chrysler indicates Low Voltage Detected At The Fuel Lift Pump.
Common causes: Common causes include Faulty Fuel Lift Pump, Fuel Lift Pump harness is open or shorted, Fuel Lift Pump 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 5,206

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 Jun 21, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P0628 Chrysler Description

The Powertrain Control Module (PCM) monitors the Fuel Lift Pump. The PCM sets the OBDII code when the commanded signal to the Fuel Lift Pump does not match the feedback signal.

OBDII Code P0628 Chrysler - Low Voltage Detected At The Fuel Lift Pump - AutoCodes.com — P0628 Chrysler Code - Low Voltage Detected At The Fuel Lift Pump

What does this mean?

What are the Possible Causes of the DTC P0628 Chrysler?

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

How to Fix the DTC P0628 Chrysler?

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

Usually, the solution to the problem is the fuel lift pump.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0628 Chrysler 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.

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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.