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
2. Inspect the engine interface
1. If damaged, replace engine
wiring harness connector W16 J3
interface wiring harness (WP
and connector pins.
0388, Vol 2).
2. If not damaged, proceed to
next test.
3. Inspect the engine ECM
1. If damaged, replace the engine
connector and connector pins for
ECM (WP 0332, Vol 2).
the engine interface wiring
harness connector W16 J3.
2. If not damaged, proceed to
next test.
4. Measure the resistance from the
1. If resistance is greater than 10
positive (+) battery terminal post
Ohms (Ω), replace engine
lead to engine interface wiring
interface wiring harness (WP
harness connector W16 J3 pin 3
0388, Vol 2).
(WP 0443, Vol 3 and WP 0448,
Vol 3, Figure 12).
2. If resistance is less than 10 Ω,
proceed to next test.
5. Measure the resistance from the
1. If resistance is greater than 10
positive (+) battery terminal post
Ω, replace engine interface
lead to engine interface wiring
wiring harness (WP 0388, Vol
harness connector W16 J3 pin 4
2).
(WP 0443, Vol 3 and WP 0448,
Vol 3, Figure 12).
2. If resistance is less than 10 Ω,
proceed to next test.
6. Measure the resistance from the
1. If resistance is greater than 10
engine block ground to engine
Ω, replace engine interface
interface wiring harness
wiring harness (WP 0388, Vol
connector W16 J3 pin 1 (WP
2).
0443, Vol 3 and WP 0448, Vol 3,
Figure 13).
2. If resistance is less than 10 Ω,
proceed to next test.
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