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Diagnosing EPS faults with the MS561 PRO tester

11 August 2025 · MSG Equipment

Diagnosing EPS faults with the MS561 PRO tester

How the MS561 PRO identifies sensor, wiring, software and control unit faults in electric power steering, in the vehicle or on the bench.

Electric power steering (EPS) units are complex electronic systems integrated with safety and parking functions. The MSG Equipment MS561 PRO tester is designed specifically for diagnosing and repairing them.

  • For torque and angle sensor faults it reads trouble codes and tests a removed rack using live data.
  • It powers the unit independently via CAN/FlexRay to separate wiring issues from unit faults.
  • For software issues it reads version data and supports direct flashing plus VIN and parameter transfer.
  • After impact or water damage it checks communication, codes and current draw against reference values.

After mechanical repair the unit can be tested immediately to confirm the result. Coverage is broad, including newer models using CAN-FD and FlexRay.

Get product information Send us a part number or vehicle details.