Kohler LH630-775 Service Manual page 64

Section 5B
EFI Fuel System
Pin #
1
Permanent Battery Voltage
2
Switched Battery Voltage
3
TPS Set; "Auto-Learn" Initialization Terminal
4
Throttle Position Sensor (TPS) and Temperature Sensor Ground
5
Not Used
6
Oil Temperature Sensor Input
7
Not Used
8
Throttle Position Sensor (TPS) Input
9
Speed Sensor Input (+)
10
Speed Sensor Ground (-)
11
Not Used
12
High Temperature Warning Output*
13
Not Used
14
Injector 1 Output
15
Injector 2 Output
16
Not Used
17
Diagnostic Line
18
Throttle Position/Temperature Sensor Supply Voltage
19
Battery Ground
20
Oxygen Sensor Input
21
Battery Ground (Secondary)
22
Not Used
23
Not Used
24
Not Used
25
Safety Switch Input
26
Not Used
27
Not Used
28
Main Relay Output
29
Malfunction Indicator Light (MIL)
30
Ignition Coil #1 Output
31
Ignition Coil #2 Output
32
Fan Control Output*
*On LH775 Kohler liquid-cooled engines, the ECU and corresponding wiring harness provide two additional
circuits. Pin circuit 32 provides ability to control an optional OEM electric cooling fan, switching it on and off
at the appropriate coolant temperatures using a relay. Pin circuit 12 switches on when the coolant
temperature is too high to operate an optional engine temperature warning light.
5B.24
Function
1
17
2
18
3 19
4
20
5 21
6 22
7
23
8
24
25
9
26
10
27
11
28
12
13
29
30
14
15
31
16 32