TM 5-3895-385-23-1
0046
Table 1. SPN#168, FMI#18 ― Engine ECM Supply Voltage Level Below
Minimum System Voltage Level -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Measure voltage for combined
1. If battery voltage is at least 12
battery circuit while cranking (WP
VDC, turn keyless engine
0443, Vol 3).
switch to the OFF position (TM
5-3895-385-10), and proceed
to next malfunction.
2. If battery voltage is less than 12
VDC, turn keyless engine
switch to the OFF position (TM
5-3895-385-10), and charge or
replace batteries (WP 0357,
Vol 2).
3. 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.
4. Damaged engine interface wiring
1. Disconnect the engine interface
harness.
wiring harness connector W16 J3
from the ECM (WP 0451, Vol 3,
Figure 36).
0046-3
