Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2004 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

Abs HU/Cm Inspection: Notes

Remove the battery and battery tray.
Connect the SST between the ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) and harness connector with the ignition switch off.
Attach the tester leads to the SST to inspect voltage by referring to the table below.
CAUTION:
- In the event that the vehicle is to be inspected while it is being driven, make sure that the SST harness does not interfere with parts in the engine room.
  
  Fig 1: Connecting Special Service Tool Between ABS/TCS HU/CM
  Courtesy of MAZDA MOTORS CORP.

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.

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