TM 5-3805-294-23-1
0037
Table 1. DTC 157.03 - Fuel Rail Pressure Signal Out of Range High - Continued.
Test or Inspection
Corrective Action
Malfunction
Measure resistance (Volume
1.
If between 140 - 160 kohms,
11.
ECU Pins G2 and C1
proceed to Malfunction 1.
on ECU Connector
3, WP 0369) on connector J03
J03 Not Between
of ECU between pins G2 and
2.
If not between 140 - 160
140 - 160 kohms.
C1. (Volume 5, WP 0800,
kohms, replace ECU. (Volume
Figure 146) Note reading.
4, WP 0508) Restore machine
to original condition and
perform Harness Diagnostic
Mode Test. (Volume 3,
WP 0345)
1.
Disconnect engine wiring
12.
Engine Wiring
harness connector J03.
Harness Connector
J03 Has Damage or
(Volume 5, WP 0800, Figure
Loose Sockets.
48)
2.
Visually inspect engine wiring
1.
If damaged or has loose
harness connector J03 for
sockets, replace engine wiring
damage or loose sockets.
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 13.
Visually inspect ECU
1.
If damaged or has loose pins,
13.
ECU Connector J03
connector J03 (Volume 5,
replace ECU. (Volume 4,
Has Damage or
Loose Pins.
WP 0800, Figure 146) for
WP 0508) Restore machine to
damage or loose pins.
original condition and perform
Harness Diagnostic Mode
Test. (Volume 3, WP 0345)
2.
If not damaged, and does not
have loose pins, proceed to
Malfunction 14.
Measure resistance (Volume
1.
If continuity is present,
14.
Open Circuit
proceed to Malfunction 15.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
If continuity is not present,
2.
Connector J03
socket G1 (Volume 5,
replace engine wiring
Socket G1 and
WP 0800, Figure 48) and
harness. (Volume 4,
Engine Wiring
engine wiring harness
WP 0510) Restore machine to
Harness Connector
connector P05 socket 3.
original condition and perform
P05 Socket 3.
(Volume 5, WP 0800, Figure
Harness Diagnostic Mode
57) Note reading.
Test. (Volume 3, WP 0345)
0037-5