TM 5-3805-294-23-1
0064
Table 1. DTC 647.31 - Fan Manual Reverse Mode Input Active Too Long - Continued.
Test or Inspection
Corrective Action
Malfunction
1.
Disconnect connector J02
8.
Engine Interface
from ECU. (Volume 5,
Wiring Harness
Connector J02 Has
WP 0800, Figure 47)
Damage or Loose
Sockets.
2.
Visually inspect connector J02
1.
If damaged or has loose
for damage and loose sockets.
sockets, repair connector J02
(Volume 4, WP 0511) or
replace engine interface wiring
harness. (Volume 4,
WP 0509) Restore machine to
original condition. Clear and
refresh DTCs. (Volume 3,
WP 0362)
2.
If not damaged and does not
have loose sockets, proceed to
Malfunction 9.
Visually inspect ECU
1.
If damaged or has loose pins,
9.
ECU Connector J02
connector J02 for damage and
replace ECU. (Volume 4,
Has Damage or
loose pins. (Volume 5,
Loose Pins.
WP 0508) Restore machine to
WP 0800, Figure 146)
original condition. Clear and
refresh DTCs. (Volume 3,
WP 0362)
2.
If not damaged and does not
have loose pins, proceed to
Malfunction 10.
Measure resistance (Volume
1.
If continuity is present between
10.
Short Circuit
any sockets, proceed to
Between Engine
3, WP 0369) between engine
Malfunction 11.
Interface Wiring
interface wiring harness
Harness Connector
connector J02 socket F2 and
2.
If continuity is not present
J02 Socket F2 and
all other sockets on connector
between and sockets, replace
All Other Sockets
J02. (Volume 5, WP 0800,
ECU. (Volume 4, WP 0508)
on Connector J02.
Figure 47) Note readings.
Restore machine to original
condition. Clear and refresh
DTCs. (Volume 3, WP 0362)
1.
Remove engine compartment
11.
Connector H01 Has
lower access cover. (Volume
Damage or Loose
Sockets/Pins.
4, WP 0593)
2.
Disconnect connector H01.
(Volume 5, WP 0800, Figure
40)
0064-4