P1748
Electronic Pressure Control Malfunction
P1748 is an OBD-II diagnostic trouble code meaning: Electronic Pressure Control Malfunction. Common causes: pressure control solenoid malfunction, low or contaminated transmission fluid. Estimated repair cost: $28–167.
Symptoms
- Incorrect gear shifting
- Slipping or jerking when shifting
- Transmission overheating
- Check Engine Light Illuminates
- Emergency operation mode of automatic transmission
Causes
- Pressure control solenoid malfunction
- Low or contaminated transmission fluid
- Problems with the wiring harness or connectors
- Mechanical damage inside the automatic transmission
- TCM control unit malfunction
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the operation of the pressure control solenoid
- Check the integrity of the electrical circuit and connectors
- Scan the TCM for errors
- If necessary, replace the solenoid or repair the automatic transmission
Related codes
Error P1748 by Vehicle Brand
FAQ
What does the P1748 code mean?
P1748 is an OBD-II diagnostic trouble code that indicates: Electronic Pressure Control Malfunction
What causes a P1748 error code?
The most common causes of P1748 include: Pressure control solenoid malfunction; Low or contaminated transmission fluid; Problems with the wiring harness or connectors; Mechanical damage inside the automatic transmission.
How do I fix a P1748 diagnostic trouble code?
To fix P1748: Check the level and condition of the transmission fluid. Diagnose the operation of the pressure control solenoid. Check the integrity of the electrical circuit and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1748?
Do not drive — repair immediately
How much does it cost to fix P1748?
The estimated repair cost for P1748 is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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