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Home >> Volvo >> 2009 >> S60 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Control Modules - Design And Function - 3 Of 3) >> Transmission Control Module (TCM) (4T65EV; 1999-2005) >> TCM diagnostic functions >> Description of parameters >> Parameters, status >> Stop (brake) lamp switch
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Stop (brake) lamp switch

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

The engine control module (ECM) transmits a signal on the Control area network (CAN) indicating whether the stop (brake) lamp switch is activated or not. The transmission control module (TCM) uses the signal to disconnect the lock-up function when braking in order to avoid jolts in the transmission.

OFF = Stop (brake) lamp switch unaffected

ON = Stop (brake) lamp switch affected

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