TM 5-3805-292-23
0006
ELECTRICAL TROUBLESHOOTING - ENGINE CRANKS BUT WILL NOT START/ EC009 CIRCUIT TO FUEL
0006
NOTE
EC009 can occur by normal operation of the
auxiliary hydraulic panel.
Disconnect auxiliary hydraulic spool
neutral switch (WP 0089).
Connect a jumper wire to neutral
switch connector C126-A, circuit
Code still
Replace auxiliary hydraulic spool
NO
602D (W), harness side and C126-
present?
neutral switch (WP 0089).
B, circuit 320A (LB), harness side
System).
YES
Remove jumper wire. Temporarily
swap start interlock relay with a
Code still
Replace start interlock relay (TM 5-
NO
known good relay from fuse box (TM
present?
3805-292-10).
5-3805-292-10).
YES
Disconnect instrument panel (IP) (WP
Check for continuity between neutral
switch connector C126-A, circuit 602D
Perform Open Harness Test for circuit
Continuity
NO
(W), harness side and IP connector
present?
602 (WP 0173).
C23-5, circuit 602C (W), harness side
Frame 20. Aux Override System).
YES
Disconnect fuel solenoid
Check for continuity between neutral
NOTE
switch connector C126-B, circuit 320A
Continuity
There is an inline diode in harness
(LB), harness side and fuel solenoid
NO
present?
between auxiliary Hydraulic spool
connector K-C4, circuit LB/YEL,
neutral switch and fuel solenoid.
Engine-KSB Cold Start Circuit and
Frame 20. Aux Override System).
Perform Open Harness Test for
YES
circuits 320 and LB/YEL (WP 0173).
Remove start interlock relay (TM 5-
3805-292-10).
Check for continuity between neutral
switch connector C126-B, circuit 320A
Perform Open Harness Test for circuit
Continuity
NO
(LB), harness side and relay pin 86
present?
320 (WP 0173).
circuit 320C (T), harness side (WP
Frame 20. Aux Override System).
YES
Repair ground to relay (WP 0173).
