LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1991 >> Explorer 2D Utility, 4WD, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Electronic DISTRIBUTORLESS Ignition System (EDIS) 4.0L Engine >> Test 3, Check Pip At EDIS Module
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test 3, Check Pip At EDIS Module

DO NOT connect ECA to break- out box while performing EDIS diagnostics unless so directed. Turn key off. Connect EDIS Diagnostic Cable (007-00059) to breakout box (T83L-50-EEC-IV), EDIS module and coil pack. DO NOT connect VR sensor tee. See Fig 1. Use EDIS No. 6 overlay.

Connect EDIS diagnostic cable negative lead to battery, leaving positive lead disconnected. Set EDIS diagnostic cable box to 4/6 CYLINDER position. Set DVOM to 20-volt AC scale. Connect DVOM leads between breakout box pins No. J43 (PIP E) and J7 (BAT -). Crank engine. If settled AC voltage reading is greater than 0.4 volts, go to next test. If settled AC voltage reading is less than 0.4 volts, go to TEST 8.

Fig 1: Installing EDIS Diagnostic Cable
G91E13445Courtesy of FORD MOTOR CO.