TM 5-3895-385-23-1
0044
Table 1. SPN#167, FMI#18 ― Electrical Charging System Voltage Low --
Moderately Severe 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.
2. Install fuse box (WP 0277, Vol
2).
3. Connect battery cables (WP
0357, Vol 2).
4. Start engine (TM 5-3895-385-
1. If alternator charging rate is at
10), and check alternator
least 50 amps, turn keyless
charging rate using ammeter
engine switch to OFF position
function (amps).
(TM 5-3895-385-10), and
proceed to next malfunction.
2. If alternator charging rate is
less than 50 amps, turn keyless
engine switch to OFF position
(TM 5-3895-385-10), and
replace alternator (WP 0350,
Vol 2).
Using Battery Analyzer
1. If charging system passes test,
turn keyless engine switch to
1. Install battery analyzer between
OFF position (TM 5-3895-385-
the positive (+) battery terminal
10), remove battery analyzer,
of one battery and then
and proceed to next
negative (-) battery terminal of
malfunction.
the other 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).
4. Open circuit in un-switched
1. Disconnect engine interface
battery supply circuit.
wiring harness connector W16
J3 from engine Electronic
Control Module (ECM) (WP
0451, Vol 3, Figure 36).
0044-3