LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1991 >> Bronco 4.9 Y, Standard, M5OD-R2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Electronic DISTRIBUTORLESS Ignition System (EDIS) 4.0L Engine >> Test 28, Check VRS High Or Low Resistance
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test 28, Check VRS High Or Low Resistance

With key off and ECA disconnected, disconnect EDIS diagnostic cable negative lead from battery. Set DVOM to 20-k/ohm scale. Measure resistance between breakout box pins No. J48 (VRS E) and J35 (VRS+ E). If resistance is less than 2550 ohms, go to next test. If resistance is greater than 2550 ohms, go to TEST 30.

scientia non olet · About LEMON Manuals