Tesla Fault Code

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EPAS_a072

Steer-by-Wire Failure.

System

Steering

Symptom

Steer-by-Wire Failure.

Diagnosis & fix steps

LOGIC: Loss of Redundancy in Steering Motors. ACTION: Inspect the 48V wiring harness at the steering rack. Check for 48V at the primary and secondary power feeds.

Red Seal field insights

Specs: 48V Architecture. PRO-TIP: Since there is no physical steering column, a total loss of 48V power means zero steering control. Clean all 48V ground points!

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

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Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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