TM 5-3805-294-23-1
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Table 1. DTC 637.10 - Crankshaft Position Signal Rate of Change Abnormal
Test or Inspection
Corrective Action
Malfunction
Visually inspect engine wiring
1.
If damaged or no twists,
20.
Engine Wiring
harness between connectors
replace engine wiring
Harness Between
harness. (Volume 4,
Connectors J03 and
J03 (Volume 5, WP 0800,
X01 Are Damaged
Figure 48) and X01 (Volume
WP 0510) Restore machine to
or Wires Are Not
original condition and perform
5, WP 0800, Figure 82) for
Twisted
Harness Diagnostic Mode
damage and wires not twisted
Throughout Wiring
Test. (Volume 3, WP 0345)
throughout wiring harness.
Harness.
2.
If not damaged and wires are
twisted correctly, proceed to
Malfunction 21.
Verify if crankshaft position
1.
If sensor was replaced,
21.
Replace Crankshaft
sensor was replaced during
proceed to Malfunction 22.
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.
Install crankshaft position
22.
ECU Faulty.
sensor. (Volume 3, WP 0405)
2.
Replace ECU. (Volume 4,
WP 0508)
3.
Reconnect all electrical
connectors.
4.
Turn key switch to ON position;
START ENGINE (TM
5-3805-294-10). (Volume 5,
WP 0794)
5.
Clear and refresh DTCs.
(Volume 3, WP 0362) Note if
DTC 637.10 is an active DTC.
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