Self Shut Down (SSD) Mode

After the ignition switch is turned to ACCESSORY (I) or to LOCK (0), the ECM/PCM stays on for up to 60 minutes. If an ECM/PCM connector is disconnected during this time, the ECM/PCM may be damaged. To cancel this mode, disconnect the negative cable from the 12 volt battery, or jump the SCS line with the HDS after the ignition switch is turned to ACCESSORY (I) or to LOCK (0).