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Home >> Buick >> 1993 >> Roadmaster Base >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel - Analog >> Testing >> Brake System Warning Indicator >> Indicator Diagnosis
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Indicator Diagnosis

  1. Battery voltage is applied to BRAKE indicator when ignition switch is in RUN, BULB TEST or START position. Ground for circuit is supplied through any of several switches which monitor low brake fluid level, unequal brake pressure and parking brake lever engagement.
  2. BRAKE indicator may also come on when a problem is detected in anti-lock brake system (if equipped). If there is a problem with BRAKE indicator functioning, check appropriate switches and circuits. See WIRING DIAGRAMS  .
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