Test 8, Check Pip Circuit For Short To Ground

With key off, disconnect the EDIS diagnostic cable. Disconnect the HEGO sensor. Measure the resistance between J43 (PIP E) and J7 (BAT-). If reading is less than 5 ohms, PIP is shorted to ground in harness. Check connectors, service or replace harness. Check for fault codes. See TESTS W/CODES article. If reading exceeds 5 ohms, go to TEST 9.