Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Kohler Diagnostic System Screenshots

iPhone

About Kohler Diagnostic System

Use the Kohler Engine Diagnostic System app with your Kohler Wireless Interface Module to diagnose EFI engine issues. The required Kohler Wireless Interface Module can be purchased through Diagnostic Systems Associates or from your Kohler distributor.

What's New in the Latest Version 4.5

Last updated on Jan 15, 2024

Old Versions

Service manual updates.

Version History

4.5

Jan 15, 2024

Service manual updates.

4.4

Oct 31, 2023

Set RPM test for ECH749-3140.

4.3

Jun 26, 2023

Bug fixes for Closed Loop display

4.0

May 10, 2023

Manual updates.

3.8

Jan 18, 2023

Bug fixes.

3.7

Nov 17, 2022

New firmware 1.0.12 for the Wireless Interface Module.

3.6

May 28, 2021

ECH440 Club Car manual updated.

3.5

May 24, 2021

Engine sort order changed.

3.4

Apr 13, 2021

ECH440 Club Car manual updated.

3.3

Feb 26, 2021

Bug fixes for ETB/CAN engine tests.

3.2

Feb 18, 2021

Bug fixes and device firmware improvements.

3.1

Jan 16, 2021

Firmware update bug fix.

3.0

Jan 13, 2021

Wireless Interface Module firmware update.
Bug fixes.

2.8

Apr 24, 2020

Additional data sets for ETB/CAN engines.

2.5

Mar 19, 2020

ETB/CAN engines have been added. They will be visible when you enter the Warranty ID Number, email address, and contact information you used to register the PC application.

2.3

Nov 11, 2019

EKT 730-750 added.
Service manuals updated.
Other bug fixes.

1.5

Nov 7, 2018

Description for trouble code P0337 updated.

1.4

Oct 18, 2018

Warranty ID number requirement for guided diagnostics removed.

1.3

Sep 10, 2018

A Warranty ID Number is now required for Guided Diagnostics.
A Main Data Display data set has been added.
An error in DTC parsing has been fixed.