TM 5-2420-231-23-1
0010
Table 1. Engine Cranks but Does Not Run - Continued.
010
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. Using a digital multimeter, mea-
Engine Cranks but Does Not
Resistance 5.0 Ohms or Less -
sure resistance between engine
Proceed to step 10.
Run - Continued
stop switch (WP 0007, Figure 2)
Resistance Greater Than 5.0 Ohms -
terminals 2 and 3. Resistance
Replace engine stop switch (WP 0174).
should be 5.0 ohms or less.
Connect main chassis wiring harness
connector (WP 0007, Figure 4) to fuel
shutoff solenoid (WP 0007, Figure 3).
Proceed to Test Step 8
10. Using a digital multimeter, test for
Continuity - Replace engine stop
continuity between engine stop
switch (WP 0174).
switch (WP 0007, Figure 2) termi-
Connect main chassis wiring harness
nals 2 and 3 while depressing
connector (WP 0007, Figure 4) to fuel
engine stop switch (TM 5-2420-
shutoff solenoid (WP 0007, Figure 3).
231-10). There should be no conti-
Proceed to Test Step 8.
nuity.
No Continuity - Proceed to step 11.
11. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
12. Disconnect front console wiring
harness connector (WP 0007, Fig-
ure 5) from main chassis wiring
harness connector (WP 0007, Fig-
ure 6).
13. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between front con-
Proceed to step 14.
sole wiring harness connector (WP
Resistance Greater Than 5.0 Ohms -
0007, Figure 1) terminal 3 and
Replace main chassis wiring harness
front console wiring harness con-
(WP 0154).
nector (WP 0007, Figure 5) termi-
Proceed to Test Step 8.
nal 1B. Resistance should be 5.0
ohms or less.
14. Using a digital multimeter, mea-
Resistance 3.5 Ohms to 7.8 Ohms -
sure resistance between fuel shut-
Fuel shutoff solenoid and front console
off solenoid (Figure 8, Item 2)
wiring harness are OK. Replace main
terminal 1 and machine ground.
chassis wiring harness (WP 0154).
Resistance should be 3.5 to 7.8
Install instrument panel front covers
ohms.
(WP 0174).
Proceed to Test Step 8.
Resistance Less Than 3.5 Ohms or
Greater Than 7.8 Ohms - Fuel shutoff
solenoid is faulty. Replace high-
pressure fuel pump (WP 0142).
Connect front console wiring harness
connector (WP 0007, Figure 5) to main
chassis wiring harness connector (WP
0007, Figure 6).
Install instrument panel front covers
(WP 0174).
Proceed to Test Step 8.
0010-11