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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 24, Check VRS Circuit For Short To Power

Test 24, Check VRS Circuit For Short To Power

With the key off, disconnect the HEGO sensor. Check the resistance between J48 (VRS- E) AND J51 (VBAT E). Is reading greater than 10 k/ohms? If yes, go to TEST 26. If no, service short circuit in VRS- harness. Check for fault codes. see TESTS W/CODES article.