Checking the stop (brake) lamp switch

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition ON

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Fig 2: Disconnecting Connector

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Expose the stop (brake) lamp switch, if this has not already been done.
Disconnect the stop (brake) lamp switch.

Fig 3: Identifying Connector Terminals
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Do the stop (brake) lamps go out when the stop (brake) lamp switch is disconnected?

YES
Refer to Replacing the component
NO
Refer to Checking for a short-circuit