Pinpoint Test P: P184B:00
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to Wiring Diagrams Two Wheel Drive/Four Wheel Drive Systems
for schematic and connector information.
Normal Operation and Fault Conditions
The electric shift motor is mounted externally to the transfer case. It drives a rotary cam which moves the range and mode forks within the transfer case. The shift motor moves during shifts in to and out of 4L, and to Neutral. It does not move during the shift between 2H and 4A or 4A to 4H. TCCM directly controls the electric shift motor and can reverse motor polarity to reverse rotary cam/shift fork direction
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition TCCM P184B:00 Transfer Case Unable To Transition Between 4x4 High and 4x4 Low Range: No Sub Type Information This DTC sets when target shift motor position is not reached after the maximum number of allowed blocked shift retries for 4H to 4L. Requested shift motor position is not reached. Possible Sources
- Transfer case range fork system damage
- Transfer case shift motor
- P1 CHECK THE TRANSFER CASE SHIFT MOTOR OPERATION
- Remove the transfer case shift motor from the transfer case, leaving the wiring connector connected.
- Observe the transfer case shift motor while switching the ATCM from 2H to 4L.
Does the transfer case shift motor rotate from the 2H position to the 4L position?
Yes INSPECT transfer case for internal damage. REFER to: Transfer Case - Vehicles With: Electronic Shift Transfer Case . No INSTALL a new transfer case shift motor. REFER to: Transfer Case Shift Motor .