U0126
Lost Communication with Steering Angle Sensor Module
2003-2003 Mazda B2300 2.3L I4
Moderate SeverityNetworkGeneric (SAE)
The 2003 Mazda B2300 is equipped with a 2.3L inline-4 engine. Below you'll find detailed u0126 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Cannot communicate with the steering angle sensor.
Symptoms
- Stability control light
- ESC disabled
- Power steering warning (EPS vehicles)
Common Causes
- Sensor module failure
- Clock spring issue
- Wiring damage
- CAN bus issue
Diagnostic Steps
- Check module power
- Test clock spring
- Inspect wiring
- Check CAN bus
Repair Notes
Check clock spring and wiring. Replace sensor module if needed.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0126 on Other Vehicles
Common Questions
What does code U0126 mean on a 2003-2003 Mazda B2300?
U0126 stands for "Lost Communication with Steering Angle Sensor Module". Cannot communicate with the steering angle sensor.
What are the symptoms of U0126 on a Mazda B2300?
Common symptoms of U0126 include: Stability control light, ESC disabled, Power steering warning (EPS vehicles).
What causes U0126 on a 2003-2003 Mazda B2300?
Common causes of U0126 include: Sensor module failure, Clock spring issue, Wiring damage, CAN bus issue.
Last updated: March 2026