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Home >> Mazda >> 2022 >> MX-5 Miata RF Club >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> On-Board Diagnostics - Electric Vacuum Pump (EVP) >> DTC C101C-18: Electric Vacuum Pump - Drive Current Decrease [EVP Control Unit] >> Notes

DTC C101C-18: Electric Vacuum Pump - Drive Current Decrease [EVP Control Unit]: Notes

DTC C101C-18: (EVP CONTROL UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

DTC C101C:18 Electric vacuum pump: drive current decrease
DETECTION CONDITION
  • Electric vacuum pump drive circuit electrical current is low for a continuous 3 s when the electric vacuum pump is operated.
FAIL-SAFE FUNCTION
POSSIBLE CAUSE
  • Malfunctions (open circuit, connection malfunction) in the following wiring harnesses and connectors
    • Electric vacuum pump terminal B-EVP control unit terminal C
    • Electric vacuum pump terminal A-EVP control unit terminal E
  • Electric vacuum pump malfunction
  • EVP control unit malfunction
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