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P1701
System
Powertrain (Transmission)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Reverse Incorrect Ratio

Understand P1701, common causes, and the right TOPDON scanner to diagnose it.

Reverse gear ratio incorrect — internal slip or low fluid in reverse.

Vanliga symptom

  • Slip in reverse
  • Delayed reverse engagement

Typiska orsaker

  • Low ATF
  • Worn reverse clutch
  • Failed reverse band

Vilken scanner behöver du?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade TOPDON-scannrar

Vanliga frågor

What does P1701 mean?
P1701 indicates reverse incorrect ratio. Reverse gear ratio incorrect — internal slip or low fluid in reverse.
Can I diagnose P1701 with a basic code reader?
P1701 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for P1701?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P1701?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.