A/T - Third Gear Starts
1994Technical Bulletin # 193A
^ Transmission: KM175 Series
^ Subject: Third gear starts
^ Application: Hyundai, Mitsubishi, Chrysler
KM175 Series
(Includes F4A21, 22, 23, 33, W4A23, 33 and A4AF)
Third Gear Starts
A third gear (limp-in) condition after rebuild can be caused by pulse generator "A" and "B" installed in the incorrect location.
Pulse generator "A" senses the rpm of the sun gear shell (or the turbine shaft on some models) and has solid green wires leading to it. Pulse generator "B" senses the rpm of the transfer shaft and has green wires with a black tracer. The length of the wires can vary from model to model. Do not install the pulse generators based on wire length.
Caution:
The first design (round) pulse generator connector has the same configuration as some mass airflow sensor connectors. The second design (rectangular) pulse generator connector has the same configuration as the second design solenoid harness connector. It is possible on some models to cross-connect these components resulting in limp-in mode (third gear only).
NOTE:
This bulletin supersedes bulletin # 193. Please remove # 193 from your files (November 1993).