Electrical Components - Kohler Command Pro EFI ECH940 Service Manual

ELECTRICAL COMPONENTS

Electronic Control Unit (ECU)
Pinout of ECU
Black Connector Side
Pin #
1 Ignition Coil #1 Ground
2 Battery Ground
3 Diagnostic Communication Line
4 Crankshaft Position Sensor input
5 Fuel Injector Output #1 Ground
6 Fuel Injector Output #2 Ground
7 Oxygen Sensor Heater
8 Intake Air Temperature (TMAP) sensor input
9 Fuel Pump Ground
10 Ground for TPS, TMAP, O2 and Oil Sensors
Manifold Absolute Pressure (TMAP) sensor
11
input
12 Throttle Position Sensor (TPS) input
13 Crankshaft Position Sensor Ground
14 Oil Temperature Sensor input
15 Ignition Switch (Switched +12V)
16 Power for TPS and TMAP Sensors (+5V)
17 Oxygen Sensor (O2) input
18 Battery Power (Permanent +12V)
ECU
Pinout of ECU
62 690 13 Rev. A
Function
BLACK CONNECTOR SIDE
KohlerEngines.com
Grey Connector Side
Pin #
1 Not Used
2 Not Used
3 Malfunction Indicator Light (MIL) Ground
4 Not Used
5 Not Used
6 GCU Tach Output (Electronic Governor)
7 Not Used
8 Not Used
9 Battery Ground
10 Ignition Coil #2 Ground
11 Not Used
12 Not Used
13 Not Used
14 Safety Switch Ground
15 Not Used
16 ECU
17 Fuel Pump Control (+12V)
18 Not Used
GREY CONNECTOR SIDE
EFI SYSTEM
Description
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