TM 5-3895-385-23-1
0057
Table 1. SPN#645, FMI#5 ― High Resistance or No Current at Number Four Injector
DRIVER or RETURN Pin -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
15.Engine ECM wiring harness
1. Disconnect engine ECM wiring
damaged.
harness W25 C3 and C4 from
both pass-through connectors
(WP 0451, Vol 3, Figure 46).
2. Disconnect engine ECM wiring
harness connector W25 C1
from engine ECM (WP 0451,
Vol 3, Figure 45).
3. Inspect engine ECM wiring
1. If damaged, replace engine
harness connector and
ECM wiring harness (WP 0334,
connector pins for damage.
Vol 2).
2. If no damage found, proceed to
next test.
4. Inspect pass-through
3. If damaged, replace pass-
connectors and connector pins
through connectors (WP 0338,
for damage.
Vol 2).
4. If no damage found, proceed to
next malfunction.
16.Short circuit to ground in engine
1. Measure resistance from
1. If resistance is more than 100
ECM wiring harness.
cylinder #1 DRIVER pin (pin 45)
kΩ, proceed to next test.
at engine ECM wiring harness
connector W25 C1 to engine
block ground (WP 0443, Vol 3
and WP 0448, Vol 3, Figure 9).
2. If resistance is 100 kΩ or less,
replace engine ECM wiring
harness (WP 0334, Vol 2).
2. Measure resistance from
1. If resistance is more than 100
cylinder #2 DRIVER pin (pin 57)
kΩ, proceed to next test.
at engine ECM wiring harness
connector W25 C1 to engine
block ground (WP 0443, Vol 3
and WP 0448, Vol 3, Figure
10).
2. If resistance is 100 kΩ or less,
replace engine ECM wiring
harness (WP 0334, Vol 2).
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