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Home › Cadillac › 1992 › Allante F7/ME9 › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Tests › Pcm DTC EO38: Open Mat Sensor Circuit › Test Conditions

Test Conditions

  1. Codes EO14 and EO15 not set.
  2. Coolant temperature -5°C or greater.
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