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.

Self-Diagnostic System: Notes

NOTE: Two-wheel drive vehicles or vehicles without power windows are equipped with a Central Timer Module (CTM). All other vehicles are equipped with a Generic Electronic Module (GEM). When diagnosing a network concern on vehicles equipped with a CTM, treat CTM as a GEM. NGS tester does not have a selection for CTM.