Code Definition

P1705 — Automatic Transmission direct clutch speed sensor fault

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Toyota

About P1705

P1705 is a manufacturer-specific powertrain diagnostic trouble code recorded for Toyota vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1705 is stored, the module has detected a sensor-related fault — the reported value from the named sensor is out of spec.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1705 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The direct clutch speed sensor is a magnetic or hall effect sensor that reads a toothed wheel on the direct clutch drum to report the rotational speed of that internal component. The Transmission Control Module compares this speed with input and output speeds to detect gear engagement, control shift timing, and judge clutch slip during shifts. DTC P1705 sets when the module detects the direct clutch speed signal is missing, erratic, or outside the expected range relative to the other speed signals. With this fault the transmission may shift harshly, flare on shifts, hold a default or fail safe...

Join TaT to view the complete code information and diagnostic details.

Quick Facts