TM 5-3805-294-23-1
0055
TROUBLESHOOTING PROCEDURE
Table 1. DTC 636.08 - High-Pressure Fuel Pump Position Sensor Signal Missing.
Test or Inspection
Corrective Action
Malfunction
1.
Turn key switch to ON position,
1.
Check For Open or
but DO NOT START ENGINE
Shorted Sensor
(TM 5-3805-294-10). (Volume
Circuit.
5, WP 0794)
2.
Perform Harness Diagnostic
Mode Test. (Volume 3,
WP 0345) Note if DTC 636.05
or 636.06 is an active DTC.
3.
Turn key switch to OFF
1.
If DTC 636.05 or DTC 636.06
position (TM 5-3805-294-10).
is active, discontinue test for
DTC 636.08 and perform test
(Volume 5, WP 0794)
for DTC 636.05 (WP 0053) or
DTC 636.06. (WP 0054)
2.
If DTC 636.05 and DTC 636.06
are not active, proceed to
Malfunction 2.
1.
Disconnect engine wiring
2.
High-Pressure Fuel
harness connector X02 from
Pump Position
high-pressure fuel pump
Sensor Loose.
sensor. (Volume 5, WP 0800,
Figure 83)
2.
Verify high-pressure fuel pump
1.
If properly torqued, proceed to
position sensor is properly
Malfunction 3.
torqued. (Volume 3,
If not properly torqued, torque
2.
WP 0435)
sensor to proper torque.
(Volume 3, WP 0435) Restore
machine to original condition
and perform Harness
Diagnostic Mode Test.
(Volume 3, WP 0345)
Visually inspect engine wiring
1.
If damaged or has loose
3.
Engine Wiring
harness connector X02 for
sockets, repair connector X02
Harness Connector
damage and loose sockets.
X02 Has Damage or
(Volume 4, WP 0511) or
Loose Sockets.
(Volume 5, WP 0800, Figure
replace engine wiring
83)
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 4.
0055-2