AutoCodes – Generic – P15D2

P15D2 Code - Coolant Pump Cut-Off Overvoltage

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: P15D2 indicates Coolant Pump Cut-Off Overvoltage.
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 1,041

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
Comments
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Code P15D2 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 P15D2 - Coolant Pump Cut-Off Overvoltage - AutoCodes.com — P15D2 Code - Coolant Pump Cut-Off Overvoltage

What does this mean?

What are the Possible Causes of the DTC P15D2?

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 P15D2?

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 P15D2 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 P15D2 code?

Need more information on how to fix the P15D2 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P15D2 BMW — Coolant Pump Cut-Off Overvoltage
P15D2 MINI — Coolant Pump Cut-Off Overvoltage

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.