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Home >> Mazda >> 2001 >> MX-5 Miata Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0703: Brake Switch Input Circuit Malfunction >> Condition

DTC P0703: Brake Switch Input Circuit Malfunction: Condition

DTC is set when Powertrain Control Module (PCM) has not received a voltage change from brake switch when brake pedal is activated 10 times and vehicle speed is 18.6 MPH or more. This is a continuous monitor. MIL is illuminated when Powertrain Control Module (PCM) detects malfunction during 2 consecutive drive cycles. Possible causes are:

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