TM 5-3895-385-23-1
0051
Table 1. SPN#627, FMI#2 ― Power Supply Lost with Ignition On -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Measure resistance between
1. If resistance is 10 Ohm (Ω) or
ECM battery SUPPLY (+) pin
more, replace engine interface
(pin 4) of engine harness ECM
harness (WP 0388, Vol 2).
power connector W16 J3 and
positive battery connector (WP
0443, Vol 3 and WP 0448, Vol
3, Figure 48).
2. If resistance is less than 10 Ω,
proceed to next test.
3. Measure resistance between
1. If resistance is 10 Ohm (Ω) or
ECM battery SUPPLY (-) pin
more, replace engine interface
(pin 1) of engine interface
harness (WP 0388, Vol 2).
wiring harness power connector
W16 J3 and ground (WP 0443,
Vol 3 and WP 0448, Vol 3,
Figure 48).
2. If resistance is less than 10 Ω,
proceed to next malfunction.
8. Keyless engine switch input
1. Disconnect engine interface
circuit resistance error.
wiring harness connector W16
J2 from ECM (WP 0451, Vol 3,
Figure 36).
2. Access keyless engine switch
(WP 0268, Vol 2).
3. Measure resistance from
1. If resistance is not less than 5
keyless engine switch ignition
Ω, install keyless engine switch
post to keyless engine switch
and replace engine interface
input SIGNAL pin (pin 39) of
wiring harness (WP 0388, Vol
engine interface wiring harness
2).
ECM connector W16 J3 (WP
0443, Vol 3 and WP 0448, Vol
3, Figure 44).
2. If resistance is less than 5 Ω,
restore equipment to original
condition and proceed to next
test.
4. Start engine (TM 5-3895-385-
10) and let it idle for 1 minute.
0051-4
