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
7. Measure the resistance from the
1. If resistance is greater than 10
engine block ground to engine
Ω, repair or replace engine
interface wiring harness
interface wiring harness WP
connector W16 J3 pin 2 (WP
0388, Vol 2).
0443, Vol 3 and WP 0448, Vol 3,
Figure 13).
2. If resistance is less than 10 Ω,
proceed to next test.
8. Disconnect engine interface
wiring harness from the batteries.
9. Measure the resistance from the
1. If resistance is greater than
engine interface wiring harness
100k kiloOhms (kΩ), proceed to
connector W16 J3 pin 3 to the
next test.
engine interface wiring harness
connector W16 J3 pin 1 (WP
0443, Vol 3 and WP 0448, Vol 3,
Figure 19).
2. If resistance is less than 100
kΩ, replace engine interface
wiring harness (WP 0388, Vol
2).
10.Measure the resistance from the
1. If resistance is greater than 100
engine interface wiring harness
kΩ, proceed to next test.
connector W16 J3 pin 3 to the
engine interface wiring harness
connector W16 J3 pin 2 (WP
0443, Vol 3 and WP 0448, Vol 3,
Figure 19).
2. If resistance is less than 100
kΩ, replace engine interface
wiring harness (WP 0388, Vol
2).
11.Measure the resistance from the
1. If resistance is greater than 100
engine interface wiring harness
kΩ, proceed to next test.
connector W16 J3 pin 4 to the
engine interface wiring harness
connector W16 J3 pin 1 (WP
0443, Vol 3 and WP 0448, Vol 3,
Figure 19).
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