TM 5-3895-385-23-1
0055
Table 1. SPN#630, FMI#2 ― Severe Loss of Data From ECM -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If battery voltage is not at least
12.4 VDC during engine crank,
turn keyless engine switch to
OFF position (TM 5-3895-385-
10), and replace batteries (WP
0357, Vol 2).
4. Battery connections faulty.
Check battery connections for
1. If tight and corrosion-free,
tightness and corrosion.
proceed to malfunction 6.
2. If loose or corroded, tighten and
clean terminals (WP 0357, Vol
2).
5. Engine interface wiring harness
1. Remove engine interface wiring
fuse fault.
harness 30 amp fuse from the
ECM battery supply positive (+)
line fuse holder (WP 0448, Vol 3,
Figure 20).
2. Inspect 30 amp fuse for damage.
1. If fuse wire is broken, replace
engine interface wiring harness
fuse (WP 0448, Vol 3, Figure
20).
2. If fuse is not damaged, reinsert
fuse into fuse holder, and
proceed to next test.
3. Remove engine interface wiring
harness 5-amp fuse from the
start switch ignition line fuse
holder (WP 0448, Vol 3, Figure
22).
4. Inspect 5-amp fuse for damage.
1. If fuse wire is broken, replace
engine interface wiring harness
fuse (WP 0448, Vol 3, Figure
22).
2. If fuse is not damaged, reinsert
fuse into fuse holder, and
proceed to next malfunction.
6. Engine interface wiring harness
1. Disconnect engine interface
damaged.
wiring harness W16 from all
connection points (WP 0451, Vol
3, Figure 35 and Figure 36).
0055-3