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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control System >> Door-Electrical Supply Unit Inspection >> Notes

Door-Electrical Supply Unit Inspection: Notes

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  2. Remove the front door trim. (See FRONT DOOR TRIM REMOVAL/INSTALLATION (US) .)
  3. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  4. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).
    • If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.