Toyota Error Code P1705: How to Fix It

Q: What causes Toyota P1705 error code?

P1705 is typically caused by a faulty direct clutch speed sensor, damaged wiring harness, corroded connectors, low transmission fluid, or internal transmission problems such as worn clutch packs or valve body issues.

Q: Can I drive with P1705 code?

While the vehicle may still be drivable with P1705, it's not recommended for extended periods. The transmission may shift harshly, slip, or go into limp mode. Continued driving could cause additional transmission damage and more expensive repairs.

Q: How much does it cost to fix P1705?

Repair costs vary widely depending on the root cause. Simple fixes like fluid changes or connector cleaning cost $50-150. Speed sensor replacement typically runs $200-400. Internal transmission repairs can cost $1500-3500 depending on the extent of damage.

Q: Will P1705 cause transmission failure?

If left unaddressed, P1705 can contribute to transmission failure. The speed sensor data is critical for proper shift timing and clutch engagement. Continued operation without proper sensor feedback can cause excessive wear on transmission components.

Q: How do I test a transmission speed sensor?

Test the speed sensor by disconnecting its electrical connector and measuring resistance with a multimeter. Toyota speed sensors typically read 190-250 ohms. You can also check for AC voltage output while the vehicle is running, which should vary with wheel speed.

Abstract

Toyota error code P1705 indicates a problem with the direct clutch speed sensor circuit in your vehicle's transmission. This sensor monitors the rotational speed of the direct clutch and sends this data to the transmission control module to ensure proper shifting. When this circuit malfunctions, it can cause harsh shifting, transmission slipping, or the vehicle going into limp mode.