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
Measure resistance (Volume
1.
If less than 1 kohm, replace
12.
Short Circuit
engine wiring harness.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
(Volume 4, WP 0510) Restore
Connector J03
sockets F3 and F4 (Volume 5,
machine to original condition
Sockets F3 and F4.
and perform Harness
WP 0800, Figure 48) while
Diagnostic Mode Test.
gently wiggling harness. Note
reading.
(Volume 3, WP 0345)
2.
If greater than 1 kohm,
proceed to Malfunction 13.
Measure resistance (Volume
1.
If less than 1 kohm, replace
13.
Short Circuit
engine wiring harness.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
(Volume 4, WP 0510) Restore
Connector J03
sockets G3 and G4 (Volume 5,
machine to original condition
Sockets G3 and G4.
and perform Harness
WP 0800, Figure 48) while
Diagnostic Mode Test.
gently wiggling harness. Note
reading.
(Volume 3, WP 0345)
2.
If greater than 1 kohm,
proceed to Malfunction 14.
Measure resistance (Volume
1.
If less than 1 kohm, replace
14.
Short Circuit
engine wiring harness.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
(Volume 4, WP 0510) Restore
Connector J03
socket F4 (Volume 5,
machine to original condition
Socket F4 and
and perform Harness
WP 0800, Figure 48) and
Ground.
Diagnostic Mode Test.
known good ground while
gently wiggling harness. Note
(Volume 3, WP 0345)
reading.
2.
If greater than 1 kohm,
proceed to Malfunction 15.
Measure resistance (Volume
1.
If less than 1 kohm, replace
15.
Short Circuit
engine wiring harness.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
(Volume 4, WP 0510) Restore
Connector J03
socket G4 (Volume 5,
machine to original condition
Socket G4 and
and perform Harness
WP 0800, Figure 48) and
Ground.
Diagnostic Mode Test.
known good ground while
gently wiggling harness. Note
(Volume 3, WP 0345)
reading.
2.
If greater than 1 kohm,
proceed to Malfunction 16.
1.
Install crankshaft position
16.
ECU Faulty.
sensor. (Volume 3, WP 0405)
2.
Install high-pressure fuel pump
position sensor. (Volume 3,
WP 0435)
0060-6