P0750Wysoki
Elektrozawór zmiany biegu A — usterka obwodu
Układ napędowy
Sprawdź szczegóły →P2830
WysokiPressure Control Solenoid 'K' — High Control Circuit Signal. The PCM/TCM has detected an abnormally high voltage in the control circuit of the hydraulic solenoid 'K' of the automatic transmission.
OBD-II (EN): Pressure Control Solenoid K Control Circuit High
Code P2830 means that the transmission control computer (PCM/TCM) has detected excessively high voltage in the circuit of the hydraulic solenoid 'K', which regulates pressure in the automatic transmission. The most common cause is a faulty solenoid or a wiring defect, less often a fault in the control module itself. Due to the risk of the transmission entering limp mode and worsening damage, prompt diagnosis at an authorized workshop is recommended.
Symptoms
Check Engine Light (MIL) on Gear shifting problems — hard, delayed, or no shifts Automatic transmission slipping Transmission enters limp mode Jerking or thudding during gear changes Increased fuel consumption Possible lack of vehicle movement in extreme cases
Possible causes
Damaged or shorted pressure control solenoid 'K' (mechanical wear or coil failure) Short to ground or power supply in the solenoid control circuit Open circuit or damaged insulation in the 'K' circuit wiring Corrosion, loose or oxidized electrical connectors in the transmission harness Damaged PCM or TCM module (rare — after excluding other causes) Low or contaminated ATF fluid causing incorrect pressure readings
Affected systems
automatyczna skrzynia biegówobwód hydrauliczny skrzynielektrozawory ciśnieniamoduł TCM/PCMukład napędowy
Related codes
P0755Wysoki
Elektrozawór zmiany biegów B — usterka
Układ napędowy
Sprawdź szczegóły →Sources and further reading
Does code P2830 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.