Kod U1010 oznacza usterkę wewnętrznej magistrali komunikacyjnej modułu sterującego (CAN/SCP). Moduł wykrył nieprawidłowe dane lub brak komunikacji z innym węzłem w sieci pojazdu.
U1015
WysokiSCP (J1850) – incorrect or missing primary identifier data. No communication between the central controller and the instrument cluster module.
OBD-II (EN): Primary Identifier Data Invalid or Missing (J1850)
Code U1015 indicates a communication break in the SCP (J1850) network – the data exchange protocol between vehicle modules, e.g., the engine control unit and the instrument cluster. It can manifest as non-functioning gauges, multiple warning lights, or an unreadable odometer. Causes can range from connector corrosion to module failure, therefore professional diagnosis with a scanner is recommended.
Symptoms
Non-functioning gauges on the dashboard (speedometer, tachometer, fuel level), no dashboard illumination, multiple warning lights illuminated (ABS, ESP, Check Engine, airbags), inability to read mileage and system messages, possible deactivation of some safety systems.
Possible causes
• Damage to the CAN/SCP (J1850) bus wiring or connectors – open circuit, short circuit, or corrosion • Failure of the instrument cluster module (IPC/BCM) • Damaged or incorrectly operating main controller (PCM/ECM) • Problems with power supply voltage or ground of the instrument cluster module • Incorrect software (firmware) of one of the network modules
Affected systems
Related codes
Utrata komunikacji z modułem wspomagania (EPS)
Brak komunikacji z bramką sieciową (gateway)
Utrata komunikacji z ECM (sterownik silnika)
Magistrala CAN High Speed — brak komunikacji
Code U1015 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Does code U1015 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.
