Test 11, Right Coil Pack Fault, Isolate Dis Module
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 DIS module (Pins No. 7-12). See Fig 1. Repeat test procedures in TEST 10. If test light illuminates during both tests, replace DIS module, and check for fault codes. See TESTS W/CODES article in the ENGINE PERFORMANCE Section. If test light does not illuminate during both tests, go to next test.