ELECTRICAL TESTING OF SHUTOFF SOLENOID

TM 10-3930-660-24-1

FUEL SHUTOFF SOLENOID TESTING (165 HP) - CONTINUED

0021 00

ELECTRICAL TESTING OF SHUTOFF SOLENOID

Test resistance of fuel shutoff solenoid

Disconnect fuel shutoff solenoid connector (1) from

main wiring harness (2).

NOTE

TR00003

Multimeter resistance should read 41.3 ohms +/

- 2.5 ohms during test in step 2. If reading is not

within acceptable limits, solenoid requires

replacement.

Place one probe of multimeter on red wire terminal (3)

of fuel shutoff solenoid connector (1). Place other

probe on black wire terminal (4) of fuel shutoff sole-

noid connector.

NOTE

Multimeter resistance should read 0.82 ohms +/

- 0.50 ohms during test in step 3. If reading is

not within acceptable limits, solenoid requires

replacement.

Place one probe of multimeter on white wire terminal

(5) of connector (1). Place other probe on black wire

terminal (4) of connector.

409-4124

Connect fuel shut-off connector (1) to main wiring

harness connector (2).

Test current draw of fuel shutoff solenoid

Disconnect fuel shutoff solenoid connector (1) from main wire harness connector (2).

NOTE

Ensure auxiliary fuel shutoff switch is in the ON position during step 6 below.

Place one probe of multimeter on red wire terminal (3) of wire harness connector (2). Place other probe on black wire

terminal (4) of wire harness connector.

NOTE

Voltage should read 24.4 volts during test in step 7. If not, solenoid requires replacement. Refer to WP 0227

00.

Have assistant turn engine start switch to the ON position without starting engine.

Have assistant turn engine start switch to the OFF position.

Connect fuel shutoff solenoid connector (1) to main wire harness connector (2).

0021 00-2