Pinpoint Test Ad: 4X4 Low: Description
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1996 Ford RV Cutaway, 1996 Ford Pickup, 1996 Ford F-Super Duty, 1996 Ford Econoline, and 1996 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
DTC 1729 indicates 4x4 low switch error. DTC 1781 indicates 4x4L circuit out of self test range. Perform this test when directed here by QUICK TEST. This PINPOINT TEST is intended to diagnose:
- 4x4 low switch.
- Wiring harness circuits for 4x4 low switch.
- Powertrain Control Module (PCM).