TM 5-3895-385-23-1
0042
Table 1. SPN#167, FMI#1 ― Electrical Charging System Voltage Low ―
Most Severe Level -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Disconnect the engine interface
wiring harness from battery
(WP 0388, Vol 2).
3. Inspect the engine interface
1. If damaged, replace engine
wiring harness connector W16
interface wiring harness (WP
J3 and connector pins
0388, Vol 2).
2. If no damage is found, proceed
to next test.
4. Inspect the engine interface
1. If damaged, replace engine
wiring harness at the battery
interface wiring harness (WP
connectors.
0388, Vol 2).
2. If no damage is found, proceed
to next test.
5. Inspect the engine ECM
1. If damaged, replace the engine
connector and connector pins
ECM (WP 0332, Vol 2).
for the engine interface wiring
harness connector W16 J3.
2. If no damage is found, restore
equipment to original condition,
and proceed to next
malfunction.
5. Open circuit in un-switched
1. Measure resistance between
1. If resistance is more than 10 Ω,
battery supply circuit.
ECM battery SUPPLY (+) pins
replace engine interface wiring
(pin 3 and pin 4) of engine
harness (WP 0388, Vol 2).
interface wiring harness W16
J3 connector and positive (+)
battery terminal (WP 0443, Vol
3 and WP 0448, Vol 3, Figure
19).
2. If resistance is 10 Ω or less,
proceed to next malfunction.
6. Pin-to-pin short circuit in engine
1. Measure resistance between
1. If resistance is 100 kiloOhm
interface wiring harness.
ECM battery supply (+) pins
(kΩ) or less, replace engine
(pins 3 and 4) of engine
interface wiring harness (WP
interface wiring harness W16
0388, Vol 2).
J3 connector and all other pins
in engine interface wiring
harness connector W16 J3 (WP
0443, Vol 3 and WP 0448, Vol
3, Figure 19).
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