TM 5-3805-294-23-1
0057
Table 1. DTC 637.02 - Crankshaft Position Signal Invalid - Continued.
Test or Inspection
Corrective Action
Malfunction
Measure resistance (Volume
1.
If less than 10 ohms, proceed
10.
Open Circuit
to Malfunction 11.
Between Engine
3, WP 0369) between engine
Wiring Harness
wiring harness connector J03
2.
If greater than 10 ohms,
Connector J03
socket F3 (Volume 5,
replace engine wiring
Socket F3 and
WP 0800, Figure 48) and
harness. (Volume 4,
Engine Wiring
engine wiring harness
WP 0510) Restore machine to
Harness Connector
connector X01 socket B.
original condition and perform
X01 Socket B.
(Volume 5, WP 0800, Figure
Harness Diagnostic Mode
82) Note reading.
Test. (Volume 3, WP 0345)
1.
Disconnect engine interface
11.
Engine Interface
wiring harness connector J02
Wiring Harness
from ECU. (Volume 5,
Connector J02 Has
Damaged or Loose
WP 0800, Figure 47)
Sockets L1, B2 and
L2.
2.
Visually inspect engine
1.
If damaged or has loose
interface wiring harness
sockets, repair connector J02
connector J02 for damaged or
(Volume 4, WP 0511) or
loose sockets at sockets L1,
replace engine interface wiring
B2 and L2.
harness. (Volume 4,
WP 0509) 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 12.
1.
Turn key switch to ON position,
12.
Intermittent Open
but DO NOT START ENGINE
Between Engine
(TM 5-3805-294-10). (Volume
Interface Wiring
Harness Connector
5, WP 0794)
J02 Sockets L1 and
L2.
2.
Measure voltage (Volume 3,
WP 0369) between engine
interface wiring harness
connector J02 sockets L1 and
L2 (Volume 5, WP 0800,
Figure 47) while gently
wiggling wiring harness. Note
any fluctuations in voltage.
0057-5