DIRECT LINE SIGNAL
| Communication Signal | Sender | Receiver | Communication Line |
|---|---|---|---|
| Battery signal | Battery | DC/DC converter | Direct Line |
| Ignition switch signal | Ignition switch | DC/DC converter | Direct Line |
| DC/DC CONV warning light signal | DC/DC converter | Combination meter assembly | |
| Source voltage for back-up (Always output) | ECM | ||
| Source voltage (When turning the ignition switch to the ON position) |