Lever Assembly-Manual Shaft Detent with Internal Mode Switch
The lever assembly-manual shaft detent with internal mode switch (IMS) is a sliding contact electrical switch assembly that corresponds to the PRNDL position selected. Each of the PRNDL positions has a unique ground pattern on four wires from the PCM/TCM.
The assembly consists of two major components:
- The internal mode switch that consists of:
- The housing (1), which makes up the stationary contacts.
- The insulator (2), which makes up the moving contacts and is secured on the detent lever (4).
- The lever assembly which consists of:
- The manual shaft (3)
- The detent lever (4)
The range detection is accomplished by securing the moving contacts to the detent lever. When the driver selects a PRNDL position, the detent lever inside the transmission rotates. This rotates the insulator which in turn grounds the four wires in a unique pattern for each gear selection, corresponding to the PRNDL position selected. The IMS is electrically connected by five wires (four of which the PCM/TCM supplies voltage to and one wire that is a common ground) to the transmission pass through connector.