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Home >> Cadillac >> 1993 >> Allante >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P053: 4X Reference Signal Interrupt From Ignition Control Module >> Test Conditions
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Test Conditions

  1. Codes P019 and P035 are not set.
  2. Engine speed greater than 568 RPM.
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