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Home >> Chevrolet >> 2005 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 366 (Shift Interlock System) >> Diagnostic Information and Procedures >> Scan Tool Data Definitions >> Transmission Control Module (TCM)
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Transmission Control Module (TCM)

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Current Gear

Displays current gear position of the transmission

TCC Brake Switch

Displays ON or OFF status of the TCC Brake switch.

TR Sw. A/B/C/P

Displays LOW or HI for the state of each of the four inputs from the IMS. LOW displayed indicates a low voltage signal (0 volts) being monitored at the TCM. HI displayed indicates a high voltage signal (B+) being monitored at the TCM.