AutoCodes – Cadillac – P3073 Cadillac

P3073 Cadillac 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 Cadillac 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 511

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

What does this mean?

What are the Possible Causes of the DTC P3073 Cadillac?

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 Cadillac?

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 Cadillac 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.

Frequently Asked Questions about P3073 Cadillac Code

1. What does the OBDII code P3073 mean on a Cadillac?

P3073 indicates "Engine Coolant Pump Low Current," which means the vehicle's engine control module (ECM) has detected insufficient electrical current to the coolant pump.

2. What are the symptoms of the P3073 code in a Cadillac?

Common symptoms include engine overheating, reduced performance, an illuminated check engine light, or erratic temperature gauge readings.

3. What causes the P3073 code to appear?

Possible causes include a malfunctioning coolant pump, faulty wiring or connectors, a blown fuse, or issues with the ECM.

4. Can I keep driving with the P3073 code?

Itâ€™s not recommended to continue driving as engine overheating can cause severe damage. Address the issue as soon as possible.

5. How do I diagnose the P3073 code on my Cadillac?

Start by inspecting the coolant pump wiring, connectors, and fuses for damage. If these components are fine, test the pump's operation and current draw.

6. How do I fix the P3073 code?

Repairs may include replacing the engine coolant pump, repairing damaged wiring or connectors, or replacing the fuse associated with the coolant pump circuit.

7. Is the P3073 code specific to Cadillacs?

While P3073 is more commonly associated with Cadillacs, it can appear on other vehicles with similar systems that monitor electric coolant pump performance.

8. How much does it cost to fix the P3073 code?

The repair cost depends on the diagnosis. Replacing the electric coolant pump can range from $300 to $700, while fixing wiring or fuses may be less expensive.

9. Can a low coolant level cause the P3073 code?

No, low coolant levels typically wonâ€™t trigger this code, but they can still lead to overheating. Ensure the coolant level is correct to avoid additional issues.

10. Do I need specialized tools to fix a P3073 code on a Cadillac?

You may need a multimeter to test electrical components, a scan tool to clear the code, and basic tools for pump replacement if necessary.