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Home >> Ford >> 1990 >> Taurus L4-153 2.5L HSC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Reading and Clearing Diagnostic Trouble Codes >> Reading Diagnostic Trouble Codes >> Quick Test Appendix (Detailed Testing Instructions) >> Reading Self-Test Service Codes >> Key-On/Engine Off

Key-On/Engine Off

Fig. 29 Self-test code output format. Key-ON, Engine-OFF:





At this time, a test of the EEC-IV system is conducted with the power applied and engine OFF. For self-test to detect errors in this test, the fault must be present at the time of testing, Fig. 29. For intermittent errors, refer to Continuous Test.