Error code

OBD2 P0745

OBD2P0745
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Pressure Control Solenoid 'A'.

Severity

highDriving may be possible but harsh shifting and slippage can cause further damage.

Summary

P0745 indicates a malfunction in the transmission fluid pressure (TFP) solenoid circuit, which controls hydraulic pressure for shifting and torque converter clutch operation.

Symptoms

  • Check Engine or Service Engine Soon light on
  • Torque Converter Clutch does not engage/disengage properly
  • Disabled shifting function with engine stall when coming to a stop
  • Harsh shifting, transmission slippage, overheating
  • Fuel efficiency concerns

Common Causes

  • Low or dirty transmission fluid
  • Excessive debris or metal particles in the transmission pan
  • Defective pressure control solenoid
  • Open or shorted line pressure solenoid valve harness
  • Poor electrical connection to the line pressure solenoid valve circuit
  • Fluid blockages inside the transmission passages
  • Mechanical internal transmission failures

Diagnosis

  1. Check for other related codes (C-codes, U-codes, B-codes)
  2. Inspect transmission fluid level and quality
  3. Examine the transmission pan for debris or metal particles
  4. Test electrical connections to the TFP solenoid

Fixes

  • Replace defective pressure control solenoid

FAQ

What should I do if my transmission fluid is dirty?

Change the transmission fluid and inspect the transmission pan for debris.

Is it common to have other codes with P0745?

Yes, related codes like DTC [P0894](https://www.troublecodes.net/P0894) often accompany this code.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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