2003 Mazda Protege5 AutomaticFACTORY OEM SERVICE PROCEDURE

Abs Hydraulic Unit (HU)/Control Module (Cm) Inspection: Notes

  1. Disconnect the negative battery cable.
  2. Connect the SSTΒ  between the ABS HU/CM and harness connector with the ignition switch off.
    Fig 1: Identifying ABS Hydraulic Unit Control Module
    G01914173Courtesy of MAZDA MOTORS CORP.
  3. Attach the tester leads to the SSTΒ  and inspect voltage. Refer to TERMINAL VOLTAGE TABLE (REFERENCE)Β  .
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:

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