TM 5-3805-294-23-1
0044
Table 1. DTC 174.04 - Fuel Temperature Signal Out of Range Low - Continued.
Test or Inspection
Corrective Action
Malfunction
Visually inspect engine wiring
1.
If damaged, replace engine
3.
Engine Wiring
harness for pinched or melted
wiring harness. (Volume 4,
Harness Damaged.
wires between engine wiring
WP 0510) Restore machine to
harness connector T05
original condition and perform
(Volume 5, WP 0800, Figure
Harness Diagnostic Mode
70) and engine wiring harness
Test. (Volume 3, WP 0345)
connector J03. (Volume 5,
2.
If not damaged, proceed to
WP Figure 48)
Malfunction 4.
1.
Measure resistance (Volume
4.
Fuel Temperature
Sensor is Shorted
3, WP 0369) between pin A on
to Ground.
the fuel temperature sensor to
a known good ground.
(Volume 5, WP 0800, Figure
70) Note reading.
2.
Measure resistance (Volume
1.
If either measurement was
less than 1 kohms, replace fuel
3, WP 0369) between pin B on
temperature sensor. (Volume
the fuel temperature sensor to
a known good ground.
3, WP 0430) Restore machine
to original condition and
(Volume 5, WP 0800, Figure
perform Harness Diagnostic
70) Note reading.
Mode Test. (Volume 3,
WP 0345)
2.
If both measurements are
greater than 1 kohms, proceed
to Malfunction 5.
Measure resistance (Volume
1.
If less than 50 ohms, replace
5.
Fuel Temperature
fuel temperature sensor.
Sensor Has Internal
3, WP 0369) between pin A
Short.
and pin B on the fuel
(Volume 3, WP 0430) Restore
temperature sensor. (Volume
machine to original condition
and perform Harness
5, WP 0800, Figure 70) Note
Diagnostic Mode Test.
reading.
(Volume 3, WP 0345)
2.
If greater than 50 ohms,
problem was not found and
may have been missed during
troubleshooting. Restart
procedure at Malfunction 1.
0044-3