What does code P1748 mean?

Q: What does code P1748 mean?

Pressure Regulator 5. P1748 on a Jaguar indicates that the transmission control module has detected an electrical fault in the circuit for pressure regulator solenoid number five inside the automatic gearbox. This solenoid is one of several electro-hydraulic valves that the module uses to control hydraulic line pressure and shift quality, and the code is set when the commanded current or voltage does not match the expected value within the module's calibrated window.

DTC codes / Jaguar codes / P1748

P1748 · JaguarPressure Regulator 5

P1748 on a Jaguar indicates that the transmission control module has detected an electrical fault in the circuit for pressure regulator solenoid number five inside the automatic gearbox. This solenoid is one of several electro-hydraulic valves that the module uses to control hydraulic line pressure and shift quality, and the code is set when the commanded current or voltage does not match the expected value within the module's calibrated window.

SystemPowertrain

Code typeJaguar specific

SeverityMedium

Fix difficultyProfessional

AreaTransmission

Guidance is general and written for Jaguar vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.