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
2.
Disconnect connector H01.
(Volume 5, WP 0800, Figure
40)
3.
Visually inspect connector H01
1.
If damaged or has loose
for damage or loose sockets/
sockets, repair connector H01
pins.
(Volume 4, WP 0511) or
replace engine interface wiring
harness. (Volume 4,
WP 0509) Restore machine to
original condition.
2.
If damaged or has loose pins,
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 38.
Using jumper wire, measure
1.
If continuity is present, replace
38.
Open Circuit
resistance (Volume 3,
engine interface wiring
Between Connector
harness. (Volume 4,
H01 Pin 1 and
WP 0369) between connector
POWER ON 5A F16
H01 pin 1 (Volume 5,
WP 0509) Restore machine to
Fuse Socket 2.
original condition.
WP 0800, Figure 40) and
POWER ON 5A F16 fuse
2.
If continuity is not present,
socket 2 (Volume 5, WP 0800,
proceed to Malfunction 39.
Figure 161). Note reading.
1.
Disconnect the following:
39.
Connector X3 Has
Damage or Loose
a. Connector X3. (Volume
Pins/Sockets.
5, WP 0800, Figure 84)
b. Connector X4. (Volume
5, WP 0800, Figure 85)
c. Connector X41.
(Volume 5, WP 0800,
Figure 102)
d. Connector X42.
(Volume 5, WP 0800,
Figure 103)
2.
Unmount and reposition the
cab wiring harness connectors
for service. (Volume 3,
WP 0312)
0124-13