TM 5-2420-231-23-1
0034
Table 1. Parking Brake Indicator Fault - Continued.
034
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Parking Brake Indicator
Test Step 5. Check for Faulty Left-
Fault - Continued
Hand or Right-Hand Brake Switch.
1. Disconnect main chassis wiring
harness connector (WP 0007, Fig-
ure 48) from right-hand parking
brake switch (WP 0007, Figure 49)
at rear axle.
2. Using a digital multimeter, test for
Continuity - Replace right-hand
continuity between right-hand
parking brake switch (WP 0223).
parking brake switch (WP 0007,
Install instrument panel (WP 0177).
Figure 49) terminals A and B.
Install front instrument panel right-side
There should be no continuity.
cover (WP 0176).
Proceed to Test Step 10.
No Continuity - Proceed to step 3.
3. Disconnect main chassis wiring
harness connector (WP 0007, Fig-
ure 50) from left-hand parking
brake switch (WP 0007, Figure 51)
at rear axle.
4. Using a digital multimeter, test for
Continuity - Replace left-hand parking
continuity between left-hand park-
brake switch (WP 0223).
ing brake switch (WP 0007,
Install instrument panel cluster (WP
Figure 51) terminals A and B.
0177).
There should be no continuity.
Install front instrument panel right-side
cover (WP 0176).
Proceed to Test Step 10.
No Continuity - Proceed to Test Step 6.
Test Step 6. Check for Shorted Side
Console Wiring Harness.
1. Disconnect side console wiring
harness connector (WP 0007, Fig-
ure 24) from main chassis wiring
harness connector (WP 0007, Fig-
ure 25).
2. Using a digital multimeter, test for
Continuity - Replace side console
continuity between side console
wiring harness (WP 0170).
wiring harness connector (WP
Proceed to Test Step 10.
0007, Figure 24) terminal 3L and
No Continuity - Replace main chassis
machine ground. There should be
wiring harness (WP 0154).
no continuity.
Proceed to Test Step 10.
0034-7