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.

For All Others

Measure resistance between test pin No. 49 at the breakout box and battery negative terminal.

On all above vehicles, measure resistance between test pin No. 29 at the breakout box and HEGO SIGNAL at the vehicle harness connector.