TM 10-3930-675-24-1
AUXILIARY PUMP TROUBLESHOOTING - CONTINUED
0037 00
Table 2. Error Code 411 - Auxiliary Pump Control, Short Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Error Code 411 - Auxiliary Pump Control, Short
Circuit Failure.
Error code 411 is an information type error code. It
may not activate for the operator. The operator may
report the auxiliary pump is not working. Enter DIAG
STEERING 2(16) in the Diagnostic menu to verify the
code or enable the information type codes in the Initial-
ization menu.
1. Test relay. Remove the plastic
Replace relay if resistance
cover from the right rear of the
between terminals 85 and 86 is
cab to access the cab
not 290 to 350 Ohms (WP 0074
distribution box (WP 0074 00).
00).
Open the cab distribution box
to access the relay boards.
Remove relay 350 and test
(WP 0113 00).
2. Check
for
continuity. a. If continuity to ground is
Disconnect connector X174
found, disconnect X46 and
located in the middle panel.
recheck.
Check for continuity to ground b. If continuity to ground is still
on the loose part of X174 at pin
found, check wire 469 for
5 (WP 0048 00-19). There
continuity to ground (WP
should not be continuity to
0048 00-16).
ground.
c. Replace grounded X174 to
X46 cable (WP 0113 00).
3. Check
for
continuity. a. If continuity to ground is
Disconnect connector X46 and
found, replace wire A469.
connector XK3 located on one b. If continuity to ground is not
of the relay boards. Check for
found, check wire A1745 for
continuity to ground on the
continuity to ground (WP
loose part of XK3 at pin 8 (WP
0048 00-16).
grounded
wire
be continuity to ground.
A1745.
4. Check ECU (792) pin 61 for a. Replace damaged ECU (792)
connection or damage (WP
terminal board (WP 0080 00).
0048 00-16).
b. Replace ECU (792) (WP 0080
00).
0037 00-3
