TM 5-3895-385-23-1
0052
Table 1. SPN#627, FMI#12 ― Injector Power Supply Voltage Low -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Measure resistance between
1. If resistance is 0.5 Ohm (Ω) or
ECM battery SUPPLY (+) pins
more, replace engine interface
(pin 3 and pin 4) at power
wiring harness (WP 0395, Vol
supply connector of engine
2).
interface wiring harness W16
J3 and positive (+) terminal on
the battery (WP 0443, Vol 3
and WP 0448, Vol 3, Figure
12).
2. If resistance is less than 0.5 Ω,
proceed to next malfunction.
4. Open circuit on battery negative
1. Measure resistance between
1. If resistance is 10 Ω or more,
side.
battery negative (-) pins (pin 1
replace engine interface wiring
and pin 2) at power supply
harness (WP 0388, Vol 2).
connector of engine interface
wiring harness W16 J3 and
engine block ground (WP 0443,
Vol 3 and WP 0448, Vol 3,
Figure 13).
2. If resistance is less than 10 Ω,
proceed to next test.
2. Start engine and run at idle (TM
5-3895-385-10).
3. Check active engine faults
1. If fault code SPN#627, FMI#12
screen for fault code SPN#627,
is displayed, proceed to next
FMI#12.
test.
2. If fault code SPN#627, FMI#12
is not displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10).
No fault present; restore
equipment to original condition.
4. Check active engine faults
1. If fault code(s) SPN#651,
screen for fault code(s)
FMI#5; SPN#653, FMI#5;
SPN#651, FMI#5; SPN#653,
SPN#652, FMI#5; or SPN#654,
FMI#5; SPN#652, FMI#5; or
FMI#5 is displayed, turn
SPN#654, FMI#5.
keyless engine switch to the
OFF position (TM 5-3895-385-
10), verify batteries are fully
charged, and troubleshoot fault
codes as necessary.
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