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Home >> Geo >> 1991 >> Prizm Base, 4D Hatchback, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A-240 "E" Series >> Component Testing >> BRAKELIGHT Switch

BRAKELIGHT Switch

  1. Disconnect electrical connector from brakelight switch, located near brake pedal. Using ohmmeter, ensure no continuity exists between Green/White and Red/White wire terminals of brakelight switch with brake pedal released. Replace brakelight switch if continuity exists.
  2. Using ohmmeter, ensure continuity exists between Green/White and Red/White wire terminals of brakelight switch with brake pedal depressed. If continuity does not exist, ensure brake pedal is properly adjusted so brakelight switch has proper travel for switch operation. If proper brakelight switch travel exists, replace brakelight switch.
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