TM 5-3805-294-23-1
0037
TROUBLESHOOTING PROCEDURE
Table 1. DTC 157.03 - Fuel Rail Pressure Signal Out of Range High.
Test or Inspection
Corrective Action
Malfunction
1.
Disconnect engine wiring
1.
Engine Wiring
harness connector P05 from
Harness Connector
fuel rail pressure sensor.
P05 Has Damage or
Loose Sockets.
(Volume 5, WP 0800, Figure
57)
2.
Visually inspect engine wiring
1.
If damaged or has loose
harness connector P05 for
sockets, repair connector P05
damage or loose sockets.
(Volume 4, WP 0511) or
replace engine wiring
harness. (Volume 4,
WP 0510) Restore machine to
original condition and perform
Harness Diagnostic Mode
Test. (Volume 3, WP 0345)
2.
If not damaged and does not
have loose sockets, proceed to
Malfunction 2.
1.
Measure resistance (Volume
2.
Fuel Rail Pressure
Sensor
3, WP 0369) between pins 1
Measurement(s)
and 2 on fuel rail pressure
Out of
sensor. (Volume 5, WP 0800,
Specifications.
Figure 57) Note reading.
2.
Measure resistance between
pins 1 and 3 on fuel rail
pressure sensor. Note
reading.
3.
Measure resistance between
pins 2 and 3 on fuel rail
pressure sensor. Note
reading.
4.
Compare measurements with
1.
If within specifications,
below specifications:
proceed to Malfunction 3.
8 - 17 kohms between pins
2.
If not within specifications,
1 and 2.
replace fuel rail pressure
1 - 3 kohms between pins
sensor. (Volume 3, WP 0429)
1 and 3.
Restore machine to original
10 - 15 kohms between
condition and perform Harness
pins 2 and 3.
Diagnostic Mode Test.
(Volume 3, WP 0345)
0037-2