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Home >> Ford >> 1991 >> Bronco 5.0 N, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.0L >> Quick Test >> Equipment Hookup >> Notes

Equipment Hookup: Notes

Apply parking brake, and place shift lever in Park (A/T) or Neutral (M/T). Block drive wheels. Turn off all electrical loads. Connect appropriate test equipment to vehicle as follows. Analog Volt-Ohmmeter (VOM)

1)  Turn ignition switch to OFF position. Set VOM at 0-15V DC range, and connect positive lead of VOM to positive battery terminal.

2)  Connect negative VOM lead to Self-Test Output (STO) terminal of self-test connector. See Figure . Connect timing light, and go to KOEO SELF-TEST. Activate KOEO SELF-TEST by connecting jumper wire from Self-Test Input (STI) pigtail to signal return terminal of self-test connector with ignition on.