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Home >> Nissan-Datsun >> 2013 >> Quest S >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) >> System Description >> Component Parts >> Engine Control System >> Stop Lamp Switch & ASCD Brake Switch
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Stop Lamp Switch & ASCD Brake Switch

Stop lamp switch and ASCD brake switch are installed to brake pedal bracket.

ECM detects the state of the brake pedal by those two types of input (ON/OFF signal).

Brake pedal ASCD brake switch Stop lamp switch
Released ON OFF
Depressed OFF ON