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Table 1. High-Pressure Fuel Supply System Test - Continued.
Table 1. High-Pressure Fuel Supply System Test - 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
0130
Table 1. High-Pressure Fuel Supply System Test - Continued.
Test or Inspection
Corrective Action
Malfunction
4.
Turn key switch to OFF
1.
If DTC 157.03 displays active,
position (TM 5-3805-294-10).
problem is not in high-pressure
fuel system. Reconnect all
(Volume 5, WP 0794)
connectors, then return to
original troubleshooting
procedure.
2.
If DTC 157.03 does not display
active, proceed to Malfunction
23.
1.
Disconnect engine wiring
23.
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. Clear and
refresh DTCs. (Volume 3,
WP 0362)
2.
If not damaged, and does not
have loose sockets, proceed to
Malfunction 24.
Visually inspect ECU
1.
If damaged or has loose pins,
24.
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. Clear and
refresh DTCs. (Volume 3,
WP 0362)
2.
If not damaged, and does not
have loose pins, proceed to
Malfunction 25.
Visually inspect engine wiring
1.
If damaged or has loose
25.
Engine Wiring
harness connector P05
sockets, repair connector P05
Harness Connector
P05 Has Damage or
(Volume 5, WP 0800, Figure
(Volume 4, WP 0511) or
Loose Sockets.
57) for damage or loose
replace engine wiring
sockets.
harness. (Volume 4,
WP 0510) Restore machine to
original condition. Clear and
refresh DTCs. (Volume 3,
WP 0362)
2.
If not damaged and does not
have loose sockets, proceed to
Malfunction 26.
0130-11


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