Home >> Mazda >> 2022 >> MX-5 Miata RF Club >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> On-Board Diagnostics - Electric Vacuum Pump (EVP) >> DTC U0001-88/U0100-00/U0100-08/U0121-00/U0121-02/U0121-87/U0155-00: Can Communication - Communication Error [EVP Control Unit] >> Diagnostic Procedure