TM 5-3805-294-23-1
0060
Table 1. DTC 637.07 - Crankshaft and High-Pressure Fuel Pump Position Signals Out of Sync - Continued.
Test or Inspection
Corrective Action
Malfunction
1.
Remove high-pressure fuel
5.
High-Pressure Fuel
pump position sensor.
Pump Position
Sensor Has
(Volume 3, WP 0435)
Damage or Loose
Pins.
2.
Visually inspect high-pressure
1.
If damaged or has loose pins,
fuel pump position sensor for
replace high-pressure fuel
damage and loose pins.
pump position sensor.
(Volume 5, WP 0800, Figure
(Volume 3, WP 0435) Restore
83)
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 6.
1.
Disconnect engine wiring
6.
ECU Connector J03
harness connector J03 from
Has Damage or
Loose Pins.
ECU. (Volume 5, WP 0800,
Figure 48)
2.
Visually inspect ECU
1.
If damaged or has loose pins,
connector J03 for damage and
replace ECU. (Volume 4,
loose pins.
WP 0508) 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 7.
Visually inspect engine wiring
1.
If damaged or has loose
7.
Engine Wiring
harness connector J03 for
sockets, replace engine wiring
Harness Connector
damage and loose sockets.
harness. (Volume 4,
J03 Has Damage or
Loose Sockets.
(Volume 5, WP 0800, Figure
WP 0510) Restore machine to
48)
original condition and perform
Harness Diagnostic Mode
Test. (Volume 3, WP 0345)
If not damaged and does not
2.
have loose sockets, proceed to
Malfunction 8.
0060-4