Communication Network Diagnostics: Notes

WARNING: This page is about a different car, the 1999 Mazda B4000, 1999 Mazda B3000, and 1999 Mazda B2500. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Two-wheel drive vehicles without power windows and/or power door locks 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.