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Home >> Chevrolet >> 1990 >> Corvette Base, 2D Convertible, Automatic, 4L60/MD8 >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Diagnosis & Testing >> Clearing Codes

Clearing Codes

  1. Turn ignition switch to OFF position. Ground pin "H". Turn ignition switch to ON position. Wait for code to begin flashing. Remove ground from pin "H" for at least one second and reconnect ground. This must be done 3 times within a 10-second period.
  2. Wait 15 seconds. Verify only code 12 is flashed. If other codes flashed, begin clearing procedure again. If only code 12 is flashed, turn ignition switch to OFF position and remove ground from pin "H".
NOTE: Tech 1 Diagnostic Computer (94-00101-A) with Bosch ABS ALDL Adapter, Pinout Box (J-35592) and High Impedance Multimeter are needed to test ABS system.
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