mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Brake Lamp|Testing and Inspection > < Initial Inspection and Diagnostic Overview|Page 3849
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Brake Lamp: Description and Operation

STOPLAMPS

Principles of Operation

NOTE:  The smart junction box (SJB) is also known as the generic electronic module (GEM).

Voltage is supplied at all times by the SJB to the stoplamp switch. When the brake pedal is applied, voltage is then supplied to the high mounted
stoplamp and the multifunction switch, which routes the voltage to the rear lamps.

Brake Lamp|Testing and Inspection > < Initial Inspection and Diagnostic Overview|Page 3849