Analog Volt-Ohmmeter (VOM)

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

2)  Connect negative VOM lead to Self-Test Output (STO) terminal of Data Link Connector (DLC). 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 Data Link Connector (DLC) with ignition on.