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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

Test Conditions

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