AutoCodes – Generic – P15D3

P15D3 Code - Coolant Pump Cut-Off Overcurrent

Quick Answer

The Engine Control Module (ECM) monitors the Coolant Pump. Common causes include Low Coolant Level, Air in the coolant system, Faulty Water Pump. 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: P15D3 indicates Coolant Pump Cut-Off Overcurrent.
Common causes: Common causes include Low Coolant Level, Air in the coolant system, Faulty Water Pump.
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 1,506

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 Jan 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15D3 Description

The Engine Control Module (ECM) monitors the Coolant Pump. The ECM sets the OBDII code when the Coolant Pump is not to factory specifications.

OBDII Code P15D3 - Coolant Pump Cut-Off Overcurrent - AutoCodes.com — P15D3 Code - Coolant Pump Cut-Off Overcurrent

What does this mean?

What are the Possible Causes of the DTC P15D3?

Low Coolant Level
Air in the coolant system
Faulty Water Pump
Water Pump harness is open or shorted
Water Pump circuit poor electrical connection

How to Fix the DTC P15D3?

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 P15D3 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 P15D3 code?

Need more information on how to fix the P15D3 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P15D3 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P15D3 BMW — Coolant Pump Cut-Off Overcurrent
P15D3 MINI — Coolant Pump Cut-Off Overcurrent

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 P15D3 Code

1. What does the OBDII code P15D3 mean?

P15D3 indicates that the Engine Control Module (ECM) has detected an overcurrent condition in the coolant pump cut-off circuit.

2. What are the common symptoms of P15D3?

Symptoms may include engine overheating, reduced engine performance, cooling fan running excessively, or an illuminated check engine light.

3. What causes the P15D3 code to appear?

Possible causes include a faulty coolant pump, wiring issues such as damaged or shorted wires, a defective coolant pump control module, or an ECM malfunction.

4. Can I drive my car with the P15D3 code?

It is not recommended to drive with this code, as it may lead to engine overheating and potential engine damage if the cooling system is not functioning properly.

5. How is the P15D3 code diagnosed?

A technician will typically inspect the coolant pump, check the wiring and connectors for damage, test the circuit for shorts or excessive resistance, and verify the operation of the control module and ECM.

6. How do I fix the P15D3 code?

Repairs may include replacing the coolant pump, repairing or replacing damaged wiring, resetting or reprogramming the ECM, or replacing the coolant pump control module if faulty.

7. How much does it cost to repair the P15D3 code?

Repair costs vary but may range from $200 to $800 or more, depending on whether the issue is related to the coolant pump, wiring, or control module.

8. Can a faulty coolant pump trigger the P15D3 code?

Yes, a malfunctioning coolant pump that draws excessive current or fails to operate correctly can cause the P15D3 code.

9. Will clearing the P15D3 code with a scanner fix the problem?

Clearing the code without addressing the root cause will only temporarily remove the warning. The issue must be properly diagnosed and repaired.

10. What preventive maintenance can help avoid the P15D3 code?

Regularly inspect the cooling system for leaks, maintain proper coolant levels, and ensure wiring and connectors are in good condition to prevent electrical issues.