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.
DTC U1255, Class 2 Initialization Error: Testing
- Clear DTCs and cycle ignition. Check for DTCs. If DTC U1255 exists, use scan tool to establish communications with each module on Class 2 data bus. Repair or replace as necessary.
- Check for intermittent open in Purple wire between individual control modules. If circuit is okay, replace PZM.