Code Retrieval Procedure Ford EEC IV
Code Retrieval Procedure Ford EEC IV
These tests should be performed on an engine that is at operating temperature, otherwise, false fault codes may be set. Also, make sure that all switches, including the air conditioner and defroster, are in the off position. These codes may also cause the “Check Engine” light to illuminate during engine operation. The first set of codes to appear are the “On Demand” codes. These may be two or three digit codes, depending on the model year.
After this sequence, any fault codes will be transmitted through the “Check Engine” light in the same manner as the KOEO test. Fault codes that appear indicate a problem that the ECM detected during that particular test. Fault codes as a result of this test do not need to be erased.
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