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Home >> Ford >> 1990 >> Bronco 4.9 Y, Standard, M5OD-R2 >> 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
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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.

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