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2021 FORD MUSTANG MACH-E
Standard Range Dual Motor AWD•AWD•AUTOMATIC•ev
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor332Torque3881Fluid5DTC581Battery1Maintenance0Recalls6
P1700high severityPowertrain

Transmission Indeterminate Failure

on 2021 Ford Mustang Mach-E Standard Range Dual Motor AWD · AWD

What this code means

The PCM/TCM has detected an indeterminate transmission failure. The transmission has failed to a neutral state. This is a general transmission failure code that may accompany more specific codes.

Symptoms

  • Check Engine Light
  • Transmission slipping
  • Harsh shifts
  • Vehicle in limp mode
  • Transmission may default to one gear

Common causes

  • Internal transmission failure
  • Solenoid pack failure
  • Valve body issue
  • Low transmission fluid
  • Transmission control module failure

Diagnostic steps

  1. Check for additional transmission DTCs for more specific diagnosis
  2. Check transmission fluid level and condition
  3. Inspect transmission wiring connector
  4. Monitor transmission pressures with scan tool

Repair notes

Check for companion DTCs. Check fluid level first. May require transmission disassembly for internal failure.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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