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DTC - Diagnostic Trouble Codes information

P0703

Powertrain Codes

P0703 - MAZDA - Brake Switch 1 Circuit Malfunction

Symptoms

- Engine Light ON (or Service Engine Soon Warning Light) - Brake lights inoperative

Possible Causes

- Open or short brake switch circuit - Poor brake switch connection - Misadjusted brake switch - Damaged brake switch

Description

Engine Control Module (ECM) detected accelerations and decelerations with no brake switch change