AutoCodes – Generic – P3073

P3073 Code - Engine Coolant Pump Low Current

Quick Answer

The cooling system's function is to maintain an efficient engine operating temperature during all engine speeds and operating conditions. Common causes include Faulty Engine Coolant Pump, Engine Coolant Pump harness is open or shorted, Engine Coolant 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: P3073 indicates Engine Coolant Pump Low Current.
Common causes: Common causes include Faulty Engine Coolant Pump, Engine Coolant Pump harness is open or shorted, Engine Coolant 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 11,968

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 Aug 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P3073 Description

The cooling system's function is to maintain an efficient engine operating temperature during all engine speeds and operating conditions. The cooling system is designed to remove various amounts of the heat produced by the burning of the air-fuel mixture. When the engine is cold, the coolant does not flow to the radiator until the thermostat opens. This allows the engine to warm up quickly. The Diagnostic Trouble Code (DTC) will be set when the Engine Coolant Pump Current is not within a calibrated range for greater than 3 s.

OBDII Code P3073 - Engine Coolant Pump Low Current - AutoCodes.com — P3073 Code - Engine Coolant Pump Low Current

What does this mean?

What are the Possible Causes of the DTC P3073?

Faulty Engine Coolant Pump
Engine Coolant Pump harness is open or shorted
Engine Coolant Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P3073?

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 P3073 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 P3073 code?

Need more information on how to fix the P3073 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P3073 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P3073 Audi — Fuel Pump Circuit Electrical Malfunction
P3073 Buick — Engine Coolant Pump Low Current
P3073 Cadillac — Engine Coolant Pump Low Current
P3073 Chevrolet — Engine Coolant Pump Low Current
P3073 GMC — Engine Coolant Pump Low Current
P3073 Volkswagen — Fuel Pump Circuit Electrical Malfunction

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 P3073 Code

What does the OBDII code P3073 mean?

The OBDII code P3073 indicates a problem with the engine coolant pump, specifically that it is receiving low current, which may affect its performance.

What are common symptoms of the P3073 code?

Common symptoms include engine overheating, warning lights on the dashboard, unusual engine noise, and reduced engine performance.

What causes the P3073 code to trigger?

Causes may include a faulty coolant pump, wiring issues such as short circuits or poor connections, a malfunctioning control module, or low battery voltage.

How can I diagnose the P3073 code?

To diagnose the P3073 code, check the coolant pump's electrical connections, inspect the wiring for damage, test the pump for proper operation, and scan for other related trouble codes.

What are potential repairs for the P3073 code?

Repairs may include replacing the coolant pump, repairing or replacing damaged wiring or connectors, or reprogramming the engine control module if necessary.

Can I drive my vehicle with the P3073 code?

It is not advisable to drive with this code, as it can lead to engine overheating and potential damage if the coolant pump is not functioning properly.

How can I prevent the P3073 code from occurring?

Regular maintenance, including checking the coolant system and electrical connections, can help prevent issues that lead to the P3073 code.

Is it safe to ignore the P3073 code?

Ignoring the P3073 code is not safe, as it indicates a problem that could lead to overheating and serious engine damage if not addressed promptly.

What should I do if the P3073 code reappears after repairs?

If the P3073 code reappears, re-inspect the coolant pump and electrical connections, and consider consulting a professional mechanic for a more in-depth diagnosis.