Efi System Electrical Components; Electronic Control Unit (Ecu) - Kohler ECV940 Service Manual

ELECTRICAL COMPONENTS

Electronic Control Unit (ECU)

Pinout of ECU
Black Connector
Pin #
1 Ignition Coil #1 Ground
2 Battery Ground
3 Diagnostic Communication Line
4 Speed Sensor input
5 Fuel Injector Output #1 Ground
6 Fuel Injector Output #2 Ground
7 Oxygen Sensor Heater
8 Intake Air Temperature (IAT) sensor input
9 Fuel Pump Ground
10 Ground for IAT, TPS, MAP, O2 and Oil Sensors
11 Manifold Absolute Pressure (MAP) sensor input
12 Throttle Position Sensor (TPS) input
13 Speed Sensor Ground
14 Oil Temperature Sensor input
15 Ignition Switch (Switched +12V)
16 Power for TPS and MAP Sensors (+5V)
17 Oxygen Sensor (O2) input
18 Battery Power (Permanent +12V)
Pinout of ECU
62 690 05 Rev. --
Function
KohlerEngines.com
Grey Connector
Pin #
1 Not Used
2 Not Used
3 Malfunction Indicator Light (MIL) Ground
4 Not Used
5 Not Used
6 GCU Tach Output
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
EFI SYSTEM
Description
25