BRAKE PEDAL POSITION (BPP) SWITCH CONSTRUCTION/OPERATION [MZ-CD 1.4 DI Turbo]
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• There are two brake pedal switches at the pedal box:
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― The brake lamp switch
― The Brake Pedal Position (BPP) switch
• The brake lamp switch only serves to switch on the brake lamps.
• The BPP is used for engine management purposes. It provides the PCM with the information that the vehicle will be decelerated.
• The BPP switch is closed in the rest state (brake pedal not depressed) and sends a ground signal to the PCM.
