1991 Ford Explorer 4D Utility, RWD, StandardFACTORY OEM SERVICE PROCEDURE

Test 3, Check Dis Module Pip Out

Install DIS diagnostic Cable (007-00044). Connect diagnostic cable to Breakout Box (T83L-50-EEC-IV). See Fig 1. Use 2.3L overlay. Connect LED test light between breakout box pins No. (+) J31 (PIP EEC) and (-) J60 (BAT -). Crank engine. If test light blinks continuously during cranking, go to next test. If test light does not blink continuously during cranking, replace DIS module, and check for fault codes.

Fig 1: Installing DIS Diagnostic Cable
G91D13444Courtesy of FORD MOTOR CO.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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