Code Definition

C1729 — Transfer Case unable to transition between 4H and 4L

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Ford

About C1729

C1729 is a manufacturer-specific chassis diagnostic trouble code recorded for Ford vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1729 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC C1729 relates to the electronic shift four wheel drive system. When a range change is requested, the four wheel drive control module commands the transfer case shift motor to rotate the shift cam between the 4H and 4L positions and watches the shift motor position sensor to confirm the change completes. Range shifts require specific entry conditions, typically the vehicle stationary or rolling very slowly with the transmission in neutral, and the planetary reduction collar must align before it can engage. This code sets when a commanded transition between 4H and 4L does not complete or the...

Join TaT to view the complete code information and diagnostic details.

Quick Facts