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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules (Service Information) >> Module, Transmission Control (TCM) >> Operation >> TCM Signals >> Selector Lever Position
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Selector Lever Position

A series of 12 Hall-effect switches in the SLSA inform the TCM of the position of the selector lever.

The TCM monitors the SLSA for all shift lever positions through five position circuits. The SLSA provides a low-current 12-volt signal to the TCM. The TCM compares the on/off signals to programmed combinations to determine the exact position of the shift lever.

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