TM 5-3805-294-23-1
0124
Table 1. Engine Control Unit (ECU) Does Not Communicate With Service Advisor - Continued.
Test or Inspection
Corrective Action
Malfunction
3.
Visually inspect connector X3
1.
If damaged or has loose pins/
for damage and loose pins/
sockets, replace cab wiring
sockets.
harness for socket side of
connector (Volume 4,
WP 0504) or replace machine
wiring harness for pin side of
connector. (Volume 4,
WP 0516) Restore machine to
original condition.
2.
If not damaged and does not
have loose pins/sockets,
proceed to Malfunction 40.
Using jumper wire, measure
1.
If continuity is present, replace
40.
Open Circuit
resistance (Volume 3,
cab wiring harness. (Volume 4,
Between Connector
H01 Pin 1 and
WP 0369) between connector
WP 0504) Restore machine to
Connector X3 Pin
H01 pin 1 (Volume 5,
original condition.
35.
WP 0800, Figure 40) and
2.
If continuity is not present,
connector X3 pin 35. (Volume
replace machine wiring
5, WP 0800, Figure 84) Note
harness. (Volume 4,
reading.
WP 0516)
1.
Remove engine compartment
41.
Connector H02 Has
lower access cover. (Volume
Damage or Loose
Socket/Pin.
4, WP 0593)
2.
Disconnect connector H02.
(Volume 5, WP 0800, Figure
41)
3.
Visually inspect connector H02
1.
If damaged or has loose
for damage or loose socket/
sockets, repair connector H02
pin.
(Volume 4, WP 0511) or
replace engine interface wiring
harness. (Volume 4,
WP 0509)
If damaged or has loose pins,
2.
replace machine wiring
harness. (Volume 4,
WP 0516) Restore machine to
original condition.
3.
If not damaged and does not
have loose sockets/pins,
proceed to Malfunction 42.
0124-14