Basic Electrical Diagram Of Electronic Governor System - Kohler Command PRO EFI Series Service Manual

FIELD INSTALLED UPDATED DESIGN Electronic Governor Troubleshooting Flow Chart Continued
Turn key switch to ON position. Test supply voltage to GCU using volt meter. Refer to page 65. (Battery
voltage +/- 1 volt)
DLA function can be tested and confi rmed using a stepper motor controller tool. Refer to Tools and Aids.
Testing instructions are included with tool.
If test fails, DLA is no good and should be replaced. If DLA test is good, another component, connection, or
input is most likely at fault.

Basic Electrical Diagram of Electronic Governor System

B+
Power
10
8
12
13
Application Supplied
Speed Control Input
Operation Input Voltage:
0-1 Volts at Idle/9+ Volts at High Speed
62 690 05 Rev. E
Green LED Light
Device
Yellow LED Light
Ground
KohlerEngines.com
Speed Signal
14
*
*
1
DLA Driver
2
Controls
6
7
Governor System
ECU Speed Output
(speed signal)
ECU
2B
2A
1A
1B
DLA
71