Kohler Command CV730 User Manual download pdf (Page 80)

5B.13

Section 5B

EFI Fuel System

Figure 5B-12. Relay Connector.

3. Set meter for DC voltage. Touch red tester lead

to the #30 terminal in relay connector. A

reading of 12 volts should be indicated at all

times.

4. Connect the red lead of meter to the #85

terminal in relay connector. Turn key switch to

the “on” position. Battery voltage should be

present.

a. No voltage present indicates a problem

with the key switch, in the wiring, or at the

connector.

b. If voltage is present, the wiring to the

connector is good. Turn the ignition switch

‘‘off’’ and proceed to Step 5 to test therelay.

Terminal #87 -

Feed To Ignition

Coils, Fuel

Injectors, and

Fuel Pump

Terminal #86 -

ECU Controlled

Ground

Terminal #87A -

Not used

Terminal #85 -

Ignition Switch

Voltage

Terminal #30 -

Permanent Battery Voltage

Terminal #85 -

Ignition Switch

Voltage

Terminal #87 -

Feed To

Ignition Coils,

Fuel Injectors,

and Fuel Pump

Terminal #86 - ECU

Controlled Ground

Terminal #30 -

Permanent Battery Voltage

Terminal

#87A -

Not used

Figure 5B-14. Style 1 Fuel Injector.

2. Connect the black lead of VOA meter to a chassis

ground location. Connect the red lead to the #86

terminal in relay connector (see Figure 5B-12). Set

meter to test resistance (Rx1). Turn ignition

switch from “off” to “on.” Meter should indicate

continuity (ground circuit is completed) for 1 to 3

seconds. Turn key switch back off.

a. Clean the connection and check wiring if

circuit was not completed.

Figure 5B-13. Relay Terminal Details.

5. Connect an ohmmeter (Rx1 scale) between the

#85 and #86 terminals in the relay. There should

be continuity. See Figure 5B-13.

6. Attach ohmmeter leads to the #30 and #87

terminals in relay. First, there should be no

continuity. Using a 12 volt power supply, connect

the positive (+) lead to the #85 terminal and touch

the negative (-) lead to the #86 terminal. When 12

volts is applied, the relay should activate and

continuity should exist between the #30 and #87

terminals. Repeat the test several times. If, at any

time the relay fails to activate the circuit, replace

the relay.

Fuel Injectors

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Kohler Command CV730 User Manual Page 80

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