Engine Controls - Basic Diagnostic Procedures: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to appropriate TESTS W/CODES article as listed below. If no hard codes are found in self-diagnostics, proceed to appropriate TESTS W/O CODES article also listed below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.

• G - TESTS W/CODES - EEC 1.8L (for Escort & Tracer)
• G - TESTS W/CODES - EEC-IV (1.9L) (for Escort & Tracer)
• G - TESTS W/CODES - EEC-IV (2.0L) (for Probe)
• G - TESTS W/CODES - EEC-IV (2.3L) (for Tempo & Topaz)
• H - TESTS W/O CODES - EEC 1.8L (for Escort & Tracer)
• H - TESTS W/O CODES - EEC-IV (1.9L) (for Escort & Tracer)
• H - TESTS W/O CODES - EEC-IV (2.0L) (for Probe)
• H - TESTS W/O CODES - EEC-IV (2.3L) (for Tempo & Topaz)