U0510

Code

Generic U — Network/User

Invalid Data Received from Steering Angle Sensor

Brand: Generic

Type: U — Network/User

Views: UK: 17 EN: 31 RU: 21

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty steering angle sensor (SAS)
Damaged or corroded wiring/connectors between SAS and control module
Poor or intermittent power or ground to the sensor
CAN/LIN network communication errors (bus wiring, termination, noise)
Improper or missing SAS calibration after sensor replacement or battery disconnect
Module software glitch or corrupted sensor data

Symptoms

ABS/ESC/traction control warning lamps illuminated
Steering angle readout incorrect or unavailable in scan tool live data
Stability control features limited or disabled (reduced functionality)
Intermittent or persistent fault lamp and stored DTC U0510
Possible steering feel may be normal; drivability may be unaffected until stability systems intervene
Errors or loss of other related messages on diagnostic tool (multiple modules reporting inconsistent steering angle)

What to check

Read and record all stored codes and freeze frame data from all modules (ABS, EPS, BCM, ECM)
Check live data: steering angle sensor raw and processed values while turning steering wheel lock-to-lock
Inspect SAS connector and wiring for damage, corrosion, pin pushed out or moisture
Verify battery voltage and engine ground integrity at the sensor and affected control modules
Check CAN/LIN bus health: measure CAN high/low voltages with key on, look for bus-off conditions and proper termination (~2.5V idle)
Backprobe power, ground, and signal terminals at the sensor with key on and compare to specification (use manufacturer data)

Signal parameters

Typical SAS signals: CAN bus message (steering angle data) or analog sensor with 5V reference, signal and ground
Steering angle data range commonly expressed in degrees (examples: ±540° or ±1080° depending on vehicle)
Update rate typically 10–100 Hz (varies by manufacturer)
Reference voltage: commonly 5.0 V or 3.3 V for sensor electronics; ground: chassis ground
CAN bus idle voltages: CAN_H ≈ 2.5–3.5 V, CAN_L ≈ 1.5–2.5 V (manufacturer-specific)

Diagnostic algorithm

Capture and save all related DTCs and freeze-frame data from ABS/EPS/BCM/ECM. Note whether U0510 repeats across multiple modules.
Verify symptom with live data: with vehicle stationary, slowly turn steering wheel and observe SAS angle and rate values for smooth, continuous changes and proper zero position.
Visually inspect sensor, steering column area, and harness for damage, rubbing, pinched wires, or contamination. Repair visible wiring damage.
Measure power and ground at the SAS connector with key on; compare to spec. Repair open/poor power or ground connections.
Check CAN bus signals at a known-good point with a multimeter and, if available, oscilloscope. Look for correct idle voltages, differential waveform, and absence of excessive noise or bus shorts.
Perform connector cleaning and reseating. Replace damaged terminals or harness pigtails as needed.
If wiring and bus are good, attempt SAS self-test/calibration using OEM scan tool. Calibrate/learn steering angle sensor per manufacturer procedure.
If calibration fails or values remain out-of-range, bench-test or replace the steering angle sensor. Verify correct sensor part and programming requirements before replacement.
After repair or replacement, clear codes, perform required calibrations, then road test and re-scan to ensure code does not return.
If fault persists despite correct sensor and wiring, consider suspect control module communication fault or module software update — consult manufacturer service information.

Likely causes

Corroded connector pins at the SAS or central junction block
Open or shorted signal, power, or ground circuit to the SAS
CAN bus wiring short/low resistance to ground or Vbat causing invalid messages
SAS internal electronics failed (out-of-range voltage or CAN payload)
SAS not calibrated to vehicle reference (zero position mismatch)

Fault status

⚠️ Status

Module received steering angle data that was invalid, out of range, or inconsistent with other vehicle sensors. Data was rejected or flagged and stability/ESC functions may be limited.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0 - 3.0 hours