F 150 4WD Pickup V6-4.2L VIN 2 (1998)
P1800 - P1804: Testing and Inspection
For diagnosis of P1804 refer to the system experiencing the problem.
Transfer Case
ESOF - Electronic Shift on the Fly
B1432 - P1820 Electronic Shift on the Fly (ESOF)
MSOF - Mechanical Shift on the Fly