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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Fault Tracing - General Information >> Fault Tracing >> Description of parameters >> Parameters, status >> Stop (brake) lamp switch

Stop (brake) lamp switch

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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