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Home >> Chrysler >> 2007 >> Crossfire Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Electronic Control Modules (Service Information)) >> Electronic Control Modules - Service Information >> Module-Transmission Control >> Operation >> Brake Transmission Shift Interlock (BTSI)

Brake Transmission Shift Interlock (BTSI)

WARNING: This page is about a different car, the 2008 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.

The BTSI solenoid prevents shifting out of the PARK position until the ignition key is in the RUN position and the brake pedal is pressed. The TCM controls the ground while the ignition switch supplies power to the BTSI solenoid. The PCM monitors the brake switch and broadcasts brake switch status messages over the CAN C bus. If the park brake is depressed and there is power (Run/Start) to SLA, the BTSI solenoid deactivates.

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