Hybspec

B1020

Średni

Steering angle sensor error or auxiliary controller failure.

OBD-II (EN): Steering Angle Sensor or Auxiliary Controller Fault

Error code B1020 may signal problems with the steering angle sensor or auxiliary controller. Incorrect operation of these components can affect safety systems, so it is worth having the vehicle professionally diagnosed.

Symptoms

• The ESP/ABS warning light may illuminate on the dashboard. • Possible problems with power steering precision. • Incorrect operation of vehicle stability control systems.

Possible causes

• Damage or incorrect calibration of the steering angle sensor. • Voltage drops in the electrical system. • Failure of the auxiliary ECU. • Problems with the sensor wiring or power supply.

Affected systems

Steering Angle SensorElectronic Stability Program (ESP)Anti-lock Braking System (ABS)Auxiliary ECU

Related codes

B0020Wysoki

Kod B0020 oznacza usterkę w sterowaniu wyzwalaniem poduszki powietrznej po lewej stronie (system SRS).

Nadwozie
Sprawdź szczegóły →
P1020Wysoki

Kod P1020 to kod specyficzny dla producenta, oznaczający problemy z układem paliwowym, zmiennym sterowaniem zaworami lub czujnikiem wałka mimośrodowego Valvetronic — interpretacja zależy od marki pojazdu.

Układ napędowy
Sprawdź szczegóły →

Does code B1020 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.