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
5.
Turn key switch to OFF
1.
If DTC 647.31 is still active,
position (TM 5-3805-294-10).
proceed to Malfunction 2.
(Volume 5, WP 0794)
2.
If DTC 647.31 is not active,
replace reversing fan switch.
(Volume 4, WP 0523) Restore
machine to original condition.
Clear and refresh DTCs.
(Volume 3, WP 0362)
1.
Remove reversing fan switch.
2.
Connector S15 Has
Damage or Loose
(Volume 4, WP 0523)
Sockets.
2.
Disconnect connector S15.
(Volume 5, WP 0800, Figure
64)
3.
Visually inspect connector S15
1.
If damaged or has loose
for damage and loose sockets
sockets, replace reversing fan
switch wiring harness.
(Volume 4, WP 0523) 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 3.
Visually inspect reversing fan
1.
If damaged or has loose pins,
3.
Reversing Fan
switch for damage and loose
replace reversing fan switch.
Switch Has Damage
or Loose Pins.
pins. (Volume 5, WP 0800,
(Volume 4, WP 0523) Restore
Figure 64)
machine to original condition.
Clear and refresh DTCs.
(Volume 3, WP 0362)
If not damaged and does not
2.
have loose pins, proceed to
Malfunction 4.
1.
Verify reversing fan switch is in
4.
Reversing Fan
OFF position (TM
Switch Faulty.
5-3805-294-10). (Volume 5,
WP 0794)
0064-2