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Home >> Cadillac >> 1993 >> Allante >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P090: TCC Brake Switch Input Circuit Problem >> Test Conditions
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Test Conditions

  1. Codes P033, P106 and P137 not set.
  2. Traction control and anti-lock brake systems are operating normally.
  3. Non-drive wheel speed of 36 MPH or greater, or non-drive wheel speed of 36 MPH or greater and has not fallen below 1.2 MPH since.
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