What does code P1724 mean?

Q: What does code P1724 mean?

Gear 4 Incorrect Ratio. P1724 on Ford vehicles means the transmission control module (TCM) commanded fourth gear but the actual gear ratio it calculated from the input and output speed sensors did not match the expected value for fourth gear. The computer detects this by comparing engine speed and vehicle speed against the programmed ratio for fourth gear, and flags the code when the calculated ratio falls outside the acceptable window for a set period.

DTC codes / Ford codes / P1724

P1724 · FordGear 4 Incorrect Ratio

P1724 on Ford vehicles means the transmission control module (TCM) commanded fourth gear but the actual gear ratio it calculated from the input and output speed sensors did not match the expected value for fourth gear. The computer detects this by comparing engine speed and vehicle speed against the programmed ratio for fourth gear, and flags the code when the calculated ratio falls outside the acceptable window for a set period.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyProfessional

AreaTransmission

Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.