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Home >> Ford >> 1990 >> Bronco II RWD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> DISTRIBUTORLESS Ignition System (Dis) - No Start (4.0L) >> Test 7, Check Pip At EDIS Module/Isolate EEC
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Test 7, Check Pip At EDIS Module/Isolate EEC

With key off, disconnect the ECA. Crank engine. Does LED test light blink continuously. If yes, replace ECA and check for fault codes. See TESTS W/CODES article. If light does not blink continuously, go to TEST 8.