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Home >> Pontiac >> 2006 >> Torrent FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays, Gauges And Console >> Diagnostic Information and Procedures >> DTC B0728, B0733, B0738, or B0748 >> Circuit Description

Circuit Description

The transmission control module (TCM) communicates the park/neutral switch status to the body control module (BCM) via serial data. The BCM uses this data to control the Electronic PRNDL display on the shifter. The BCM controls the LEDs in the PRNDL display through 4 control circuits.

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