P0747

What does P0747 mean?

P-code P0747 means "Pressure Control Solenoid Performance or Stuck Off". It is a generic OBD-II diagnostic trouble code (DTC) in the powertrain. The pressure reading from the pressure control solenoid performance or stuck off is outside the expected operating range. This code can be monitored, but service is recommended to prevent escalation. This code applies to OBD-II compliant electric and hybrid vehicles.

Possible Causes

• Faulty pressure sensor or damaged sensor connector
• Fluid leak causing lower-than-expected pressure readings
• Blocked pressure port or contaminated sensing element
• Pump or actuator failure affecting system pressure

Recommended Actions

1. 1 Note the alert and schedule a diagnostic appointment when convenient
2. 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside P0747
3. 3 Inspect the mechanical component for physical obstruction, ice, or debris
4. 4 Manually operate (if safe) to check for binding or unusual resistance
5. 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
6. 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement

Related Powertrain fault codes