TM 5-3895-385-23-1
0049
Table 1. SPN#611, FMI#31 ― ECM Data Lost.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Battery supply circuit resistance
1. Disconnect engine interface
problem.
wiring harness connector W16
J3 from engine ECM (WP 0451,
Vol 3, Figure 36).
2. Measure resistance between
1. If resistance is 10 Ohm (Ω) or
ECM battery SUPPLY (+) pins
more, proceed to next test.
(pins 3 and pin 4) of engine
interface wiring harness
connector W16 J3 and positive
(+) battery terminal (WP 0443,
Vol 3 and WP 0448, Vol 3,
Figure 12).
2. If resistance is less than 10 Ω,
proceed to next malfunction
3. Measure resistance between
1. If resistance is 10 Ω or more,
battery RETURN (-) pins (pin 1
proceed to malfunction 4.
and pin 2) of engine interface
wiring harness connector 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 malfunction.
2. Incorrect battery voltage.
1. Install fuse box (WP 0277, Vol
2).
2. Connect battery cables (WP
0357, Vol 2).
3. Turn keyless engine switch to
AUX position (TM 5-3895-385-
10), but do not start engine.
Wait for 30 seconds.
4. Measure battery voltage on
1. If battery voltage on each
each battery from positive (+)
battery is at least (+) 12 Volts
terminal to negative (-) terminal
Direct Current (VDC), proceed
(WP 0443, Vol 3).
to next test.
2. If battery voltage on any battery
is less than (+) 12 VDC, replace
battery (WP 0357, Vol 2).
