TM 5-2410-241-23-1
0020
Table 1. Powertrain Troubleshooting Procedures - Continued.
0020
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
70-3 Parking Brake Switch
16. Using a digital multimeter (WP
1.
If continuity is found, proceed to
Voltage Above Normal -
0296), test for continuity between
step 17.
Continued
pin 40 on powertrain ECM connec- 2.
If continuity is NOT found, replace
tor X-C2 (WP 0018, Figure 4) and
steering control harness (WP
pin 4 on parking brake switch con-
0178). Ensure all harness connec-
nector X-C6 (WP 0018, Figure 44).
tors are reconnected. Verify cor-
rect operation of machine (TM 5-
2410-241-10).
17. Using a digital multimeter (WP
1.
If continuity is NOT found, proceed
0296), test for continuity between
to step 18.
pin 35 on powertrain ECM connec- 2.
If continuity is found, replace
tor X-C2 (WP 0018, Figure 4) and
steering control harness (WP
all other pins in powertrain ECM
0178). Ensure all harness connec-
connector X-C2 (WP 0018,
tors are reconnected. Verify cor-
Figure 4).
rect operation of machine (TM 5-
2410-241-10).
18. Using a digital multimeter (WP
1.
If continuity is NOT found, replace
0296), test for continuity between
powertrain ECM (WP 0175).
pin 40 on powertrain ECM connec-
Ensure all harness connectors are
tor X-C2 (WP 0018, Figure 4) 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).
70-4 Parking Brake Switch
1. Connect MSD (WP 0016), select
1. If active 70-4 code is present, pro-
Voltage Below Normal
Powertrain D7 ECM, and check for
ceed to step 2.
Diagnostic Codes or Event Codes
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 left platform access panel
(WP 0207).
4. Disconnect parking brake switch
connector X-C6 (WP 0018, Figure
44) from parking brake switch (WP
0018, Figure 45).
5. Push parking brake switch down-
ward to the OFF position (TM 5-
2410-241-10).