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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Systems >> Fuse Block Removal/Installation >> Verify Fuse Block Replacement
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Verify Fuse Block Replacement

  1. Temporarily connect the negative battery terminal to verify that the related wiring harness is not heated.
  2. Switch the ignition ON (engine off).
  3. Verify that the fuse is not blown and the related wiring harness is not heated.
  4. Inspect for DTCs. (See DTC INSPECTION .)
    • If a DTC is displayed, repair the malfunctioning location according to the applicable DTC troubleshooting.
      • After completion of repairs, clear all DTCs stored in the module. (See CLEARING DTC .)
  5. If there is no malfunction in Step 1, 3, and 5, start the engine and maintain the idle status.
  6. Operate all the switches of the interior/exterior lights of the vehicle and verify that all the light bulbs illuminate and flash.
  7. Operate the audio, climate control, wiper switch, and selector lever (ATX) and verify that they operate correctly.
  8. Shift the selector lever to the P position, race the engine at approx. 3, 000 rpm from engine idling, and verify that there is no malfunction. (ATX)
  9. Perform a road test and verify that low speed, acceleration, shift-up, and shift-down conditions are normal. (ATX)
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