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Table 1. DTC 94.03 - Low-Pressure Fuel Signal Out of Range High.
Table 1. DTC 94.03 - Low-Pressure Fuel Signal Out of Range High - Continued.

Maintenance Manual For Hydraulic Excavator Type 1 With Hydraulic Thumb And Quick Latch -1 Page Navigation
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TM 5-3805-294-23-1
0015
Table 1. DTC 94.03 - Low-Pressure Fuel Signal Out of Range High - Continued.
Test or Inspection
Corrective Action
Malfunction
Inspect fuel transfer pump
1.
If damaged or has loose pins,
3.
Fuel Transfer Pump
pressure sensor (Volume 5,
replace fuel transfer pump
Pressure Sensor
pressure sensor. (Volume 3,
Has Damage or
WP 0800, Figure 55) for
Loose Pins.
damage and loose pins.
WP 0431) Restore machine to
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 4.
Measure resistance (Volume
1.
If greater than 5 ohms,
4.
Open Circuit
proceed to Malfunction 5.
Between Engine
3, WP 0369) between engine
Interface Wiring
interface wiring harness
2.
If less than 5 ohms, proceed to
Harness Connector
connector P03 socket 1
Malfunction 6.
P03 Socket 1 and
(Volume 5, WP 0800, Figure
Engine Wiring
55) and engine wiring harness
Harness Connector
connector J03 socket H3.
J03 Socket H3.
(Volume 5, WP 0800, Figure
48) Note reading.
1.
Disconnect engine wiring
5.
Open Circuit
harness connector I01.
Between Engine
Interface Wiring
(Volume 5, WP 0800, Figure
Harness Connector
44)
P03 Socket 1 and
Engine Wiring
Harness Connector
I01 Pin 1.
2.
Measure resistance (Volume
1.
If greater than 5 ohms, replace
engine interface wiring
3, WP 0369) between engine
harness. (Volume 4,
interface wiring harness
connector P03 socket 1
WP 0509) Restore machine to
original condition and perform
(Volume 5, WP 0800, Figure
Harness Diagnostic Mode
55) and engine wiring harness
connector I01 pin 1. (Volume 5,
Test. (Volume 3, WP 0345)
WP 0800, Figure 44) Note
2.
If less than 5 ohms, replace
reading.
engine wiring harness.
(Volume 4, WP 0510) Restore
machine to original condition
and perform Harness
Diagnostic Mode Test.
(Volume 3, WP 0345)
0015-3


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