TM 5-3895-385-23-1
0045
Table 1. SPN#168. FMI#16 ― Engine ECM Supply Voltage Above Maximum System Voltage Level --
Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
It may be necessary to place a load on the batteries, such as turning on the BMPM worklights,
to properly measure alternator output.
3. Install fuse box (WP 0277, Vol
2).
4. Connect battery cables (WP
0357, Vol 2).
5. Start engine (TM 5-3895-385-
1. If alternator charging rate is
10), and check alternator
between 50 amps and 80 amps,
charging rate using ammeter
proceed to next malfunction.
function (amps).
2. If alternator charging rate is not
between 50 amps and 80 amps,
replace the alternator (WP
0350, Vol 2).
Using Battery Analyzer
1. If charging system passes test,
turn keyless engine switch to
2. Install battery analyzer between
OFF position (TM 5-3895-385-
the positive (+) battery terminal
10), remove battery analyzer,
of one battery and the negative
and proceed to next
(-) battery terminal of the other
malfunction.
battery. Follow battery analyzer
instructions.
2. If charging system does not
pass test, turn keyless engine
switch to OFF position (TM 5-
3895-385-10), and replace
alternator (WP 0350, Vol 2).
3. Multiple fault codes.
1. Check active engine faults
1. If fault code SPN#168, FMI#16
screen for fault code SPN#168,
is displayed with other fault
FMI#16.
codes, turn keyless engine
switch to the OFF position (TM
5-3895-385-10), and proceed to
next fault code troubleshooting
procedure.
2. If fault code SPN#168, FMI#16
is not displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10),
and process to next
malfunction.
0045-6