TM 5-2410-241-23-1
0020
Table 1. Powertrain Troubleshooting Procedures - Continued.
0020
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
722-3 Service Brake Sole-
20. Disconnect ECM harness connec-
noid Voltage Above Nor-
tor X-C3 (WP 0018, Figure 3) from
mal - Continued
powertrain ECM.
21. Using a digital multimeter (WP
1. If continuity is found, proceed to
0296), test for continuity between
step 22.
pin 5 on powertrain ECM connec-
2. If continuity is NOT found, replace
tor X-C3 (WP 0018, Figure 3) and
steering control harness (WP
pin 17 on steering control harness
0178). Ensure all harness connec-
connector X-C1 (WP 0018,
tors are reconnected. Verify cor-
Figure 34).
rect operation of machine (TM 5-
2410-241-10).
22. Using a digital multimeter (WP
1. If continuity is NOT found, proceed
0296), test for continuity between
to step 23.
pin 5 on powertrain ECM connec-
2. If continuity is found, replace
tor X-C3 (WP 0018, Figure 3) and
steering control harness (WP
all other pins in powertrain ECM
0178). Ensure all harness connec-
connector X-C3 (WP 0018,
tors are reconnected. Verify cor-
Figure 3).
rect operation of machine (TM 5-
2410-241-10).
23. Using a digital multimeter (WP
1. If continuity is NOT found, replace
0296), test for continuity between
powertrain ECM (WP 0175).
pin 5 on powertrain ECM connec-
Ensure all harness connectors are
tor X-C3 (WP 0018, Figure 3) and
reconnected. Verify correct opera-
all other pins in powertrain ECM
tion of machine (TM 5-2410-241-
connector X-C2 (WP 0018,
10).
Figure 4).
2. If continuity is found, replace
steering control harness (WP
0178). Ensure all harness connec-
tors are reconnected. Verify cor-
rect operation of machine (TM 5-
2410-241-10).
722-5 Service Brake Sole-
1. Connect MSD (WP 0016), select
1. If active 722-5 code is present,
noid Voltage Below Nor-
Powertrain D7 ECM, and check for
proceed to step 2.
mal
Diagnostic Codes (WP 0013).
2. If no active codes are present, the
problem does NOT exist at this
time. Resume normal operation.
2. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-241-10).
3. Remove rear floor plate (WP
0231).
4. Disconnect service brake dump
solenoid connector MA-C6 (WP
0018, Figure 69) from service
brake dump solenoid (WP 0018,
Figure 70).