2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE

Using GR8-1291

  1. Remove the battery. (See BATTERY REMOVAL/INSTALLATION .)
  2. Remove the battery filler caps.
  3. Check the water level. If necessary, add water to the appropriate level.
  4. Reinstall the caps.
  5. Attach the large red clamp to the positive battery terminal and the large black clamp to the negative terminal.
  6. Select the diagnostic icon in the Main Menu, then press the NEXT key.
  7. Follow the on-screen instructions to input the appropriate information. Refer to the Mazda GR8-1291 Instruction Service Information for more information.
  8. The GR8-1291 will test and charge the battery. Before the diagnostic charging results are displayed, use the keypad on the Control Module to input the last 5 digits of the vehicle's VIN and press NEXT to continue.
  9. After the charging is completed, the Mazda GR8-1291 will print out the diagnostic charging results and display one of the following results listed below. Review the results and follow the action step for the displayed result.
Battery Tester Display Action Step
GOOD BATTERY Return the battery to service.
REPLACE BATTERY Replace the battery.
BAD CELL - REPLACE Replace the battery.
WARNING:
  • Do not charge the battery. Charging a battery with one or more bad cells could cause an explosion and serious harm to the user.
SIDE POST TEST Test data was inconclusive using the side post. Retest using side post adapters.
JUMP START POST Data was inconclusive using the jump start post. Retest at the battery terminals.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.