F 250 4WD Super Duty V10-6.8L VIN Y (2006)
P1865 - P1869: Testing and Inspection
P1865
For diagnosis of code P1865, refer to chart:
P1812-P1877
If there is no link in the chart then:
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This code is not a valid code for this vehicle
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Or information published by the manufacturer for this vehicle did not include this code
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For complete diagnosis of the Transfer Case system, follow this link: See: Transmission and Drivetrain/Transfer Case/Testing and Inspection