October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Power Circuits
- Ensure ignition is off. Use DVOM to check for constant battery voltage at MCU pin No. 18 (Red wire). Battery voltage should also be present at pin No. 36 (Brown wire). Pin No. 36 is power feed from main relay. Computer will ground Pin No. 36 to activate main relay during cranking and while engine is running.
- Turn ignition on. Battery voltage should be present at pin No. 37 (Red/Blue wire). During cranking, battery voltage should be present at pin No. 27 (Green wire). See WIRING DIAGRAMS
article for more information.