TM 5-3805-294-23-1
0057
Table 1. DTC 637.02 - Crankshaft Position Signal Invalid - Continued.
Test or Inspection
Corrective Action
Malfunction
Verify if crankshaft position
1.
If sensor was replaced,
19.
Replace Crankshaft
sensor was replaced during
proceed to Malfunction 20.
Position Sensor.
this troubleshooting
2.
If sensor was not replaced,
procedure.
replace crankshaft position
sensor. (Volume 3, WP 0405)
Restore machine to original
condition and perform
Harness Diagnostic Mode
Test. (Volume 3, WP 0345)
1.
Disconnect negative battery
20.
ECU Faulty.
cable. (Volume 4, WP 0521)
2.
Reconnect alternator positive
output cable. (Volume 3,
WP 0402)
3.
Reconnect all other alternator
connectors. (Volume 3,
WP 0402)
4.
Replace ECU. (Volume 4,
WP 0508)
5.
Reconnect negative battery
cable. (Volume 4, WP 0521)
6.
Turn key switch to ON position;
START ENGINE (TM
5-3805-294-10). (Volume 5,
WP 0794)
7.
Clear and refresh DTCs.
(Volume 3, WP 0362) Note if
DTC 637.02 is an active DTC.
8.
Shut down engine and turn key
1.
If DTC 637.02 is still an active
switch to OFF position (TM
DTC, it is possible that another
5-3805-294-10). (Volume 5,
fault exists or that another
troubleshooting procedure
WP 0794)
applies. If this was the first time
through this procedure, restart
procedure at Malfunction 1.
2.
If DTC 637.02 is not an active
DTC, problem corrected.
END OF WORK PACKAGE
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