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Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Ford ZX2 and 2002 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.
  1. Retrieve all DTCs stored in ECS module memory by executing RETRIEVE/CLEAR CONTINUOUS DTCs. See RETRIEVING FAULT CODES  .
  2. Run on-demand self-test to determine what DTCs are currently being sensed by ECS module. See ON-DEMAND SELF-TEST  .
  3. If stored DTCs are different than current DTCs, always repair current DTCs first.
  4. If different continuous DTCs are displayed from memory than on-demand self-test, repair on-demand self-test codes first then repair continuous codes.
  5. If no DTCs are retrieved and symptoms are observed, refer to diagnostic symptoms table. See DIAGNOSTIC SYMPTOMS  table.
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