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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 U3000-63: EVP Control Unit - Long Period Of Operation [EVP Control Unit] >> Notes

DTC U3000-63: EVP Control Unit - Long Period Of Operation [EVP Control Unit]: Notes

DTC U3000-63: (EVP CONTROL UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

DTC U3000:63 EVP control unit: long period of operation
DETECTION CONDITION
  • The electric vacuum pump is used continuously for 180 s or more.
FAIL-SAFE FUNCTION
POSSIBLE CAUSE
  • Short to power supply circuit in wiring harness between electric vacuum pump terminal B and EVP control unit terminal C
  • Short to ground circuit in wiring harness between electric vacuum pump terminal A and EVP control unit terminal E
  • EVP control unit malfunction
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