P1757 – Line Pressure Solenoid Stuck (Toyota)

Description

The ECM detected a stuck line pressure solenoid affecting hydraulic pressure.

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Symptoms

  • Harsh shifting
  • Delayed shifting
  • Slipping
  • Failsafe mode
  • Check engine light

Causes

  • Stuck solenoid
  • Dirty ATF
  • Valve body blockage
  • Wiring issues

Diagnosis

  • Check ATF condition
  • Test solenoid movement
  • Inspect wiring
  • Scan TCM data

Repair

  • Replace solenoid
  • Clean valve body
  • Refill ATF
  • Repair wiring

Related Problems

Related Fault Codes