TM 5-2420-231-23-1
0018
Table 1. Instrument Cluster Does Not Function.
0018
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Instrument Cluster Does Not
Test Step 1. Verify Instrument
Function
Cluster Operation.
1. Verify that the following lamps
Lamps Do Not Illuminate - Proceed to
remain illuminated with ignition
step 2.
switch in the on position (TM 5-
Lamps Remain Illuminated - Replace
2420-231-10) and engine not run-
instrument cluster (WP 0177).
ning:
Proceed to Test Step 4.
a. Low engine oil pressure
(Figure 1, Item 2)
b. Alternator (Figure 1, Item 3)
c. Parking brake (Figure 1,
Item 1)
Figure 1. Instrument Cluster Indicators.
0018
2. Remove fuse panel cover (Figure
2, Item 1) and remove instrument
alarm fuse (Figure 2, Item 2) (TM
5-2420-231-10).
3. Inspect fuse (TM 5-2420-231-10).
Instrument Alarm Fuse OK - Proceed
to Test Step 2.
Instrument Alarm Fuse Open -
Proceed to step 4.
