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Test 23, Check Pip Circuit For Short To Ground

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1991 Ford Ranger, 1991 Ford RV Cutaway, 1991 Ford Pickup, 1991 Ford F-Super Duty, and 1991 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

With key off, disconnect diagnostic cable connector from crankshaft sensor. Disconnect diagnostic cable connector from DIS module (Pins No. 1-6). See Figure. Connect LED test light between breakout box pins No. (-) J33 (PIP S) and (+) J57 (BAT+). Turn key on.

If test light does not illuminate, go to next test. If test light illuminates, PIP is shorted to ground between sensor and DIS module. Check connectors, repair or replace harness and check for fault codes. If vehicle still does not start, go to next test.

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