Test 23, Check Pip Circuit For Short To Ground

With key off, disconnect diagnostic cable connector from crankshaft. Disconnect diagnostic cable connector from DIS module (Pins No. 1-6). See Figure . Connect LED test lamp between (-) J33 (PIP S) and (+) J57 (BAT +). Turn key on. Is test light illuminated. If No, go to TEST 24. If yes, PIP is shorted to ground between sensor and DIS module. Check connectors, service or replace harness and check for fault codes. See TESTS W/CODES article.