U0100Krytyczny
Utrata komunikacji z ECM (sterownik silnika)
Komunikacja sieciowa
Sprawdź szczegóły →U1200
NiskiInvalid or Missing Seat Movement/Control Data (SCP J1850 Protocol). Communication Error Between Seat Adjustment System Control Modules.
OBD-II (EN): Seat movement/control data invalid or missing (SCP J1850 protocol)
Code U1200 indicates a communication problem on the SCP (J1850) network related to the seat control and movement system – vehicle modules cannot properly exchange seat position data. The cause could be damaged wiring, a faulty control module, or corroded electrical connectors. Diagnosis with a professional scanner that supports vehicle communication networks is recommended.
Symptoms
- Power seat adjustment may not respond or work incorrectly - Stored seat settings (memory positions) may not work - MIL (Check Engine) or comfort system warning light may illuminate - Possible error messages on dashboard regarding the seat system
Possible causes
- Faulty or defective Seat Control Module - Open or short circuit in SCP/J1850 wiring harness - Corrosion or loose electrical connector at seat module or network node - Faulty seat position sensor - Failure of the SCP (J1850) communication bus itself or signal interference
Affected systems
Sieć komunikacyjna SCP/J1850Moduł sterujący fotelemElektryczna regulacja fotelaPamięć pozycji fotelaMagistrala danych pojazdu
Related codes
Code U1200 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Does code U1200 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.