U0513

Code

Generic U — Network/User

Invalid Data Received From Yaw Rate Sensor Module

Brand: Generic

Type: U — Network/User

Views: UK: 34 EN: 58 RU: 36

AI status

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Page language: EN

Causes

Open, shorted, or corroded wiring/connectors between yaw sensor and network/module
Faulty yaw rate sensor module (internal electronics or sensor failure)
Loss of power or poor ground to the yaw sensor module
CAN/LIN/serial bus faults (missing messages, bus errors, incorrect baud rate, termination issue)
Incompatible or incorrect module software/calibration (after replacement or update)
Intermittent wiring fault due to vibration or water intrusion

Symptoms

ESC/Traction Control/ABS warning lamp(s)
Vehicle stability systems operating erratically or disabled
Stability or traction intervention felt unexpectedly
DTC U0513 stored (may be accompanied by other network or ABS codes)
Possible reduced functionality of driver assist systems that use yaw data

What to check

Retrieve all DTCs and freeze-frame data from all modules; note timestamps and related codes
Check for other network U-codes (lost comms, invalid data from other sensors/modules)
Inspect yaw sensor connector and wiring for corrosion, bent pins, damage, water intrusion
Verify battery voltage and sensor supply power and ground at the connector
Check CAN/LIN/serial bus for physical damage and proper termination (pair continuity, ~60 ohm across CAN high/low)
Use a scan tool or CAN bus monitor to verify yaw sensor messages appear and contain plausible values

Signal parameters

Communication type: vehicle CAN bus or dedicated serial (manufacturer dependent)
Typical CAN bit rates: 125 / 250 / 500 kbps (verify vehicle-specific rate)
Typical message frequency: 10–200 Hz (yaw rate sensors often 50–100 Hz)
Yaw rate data units: degrees/sec (signed), check expected range around 0 deg/s at rest
Bus termination: two 120 Ω resistors in parallel (~60 Ω) across CAN high/low at rest
Recessive bus node voltage (approx): mid-rail (~2.5 V) on CAN_H and CAN_L average; differential signals during activity

Diagnostic algorithm

Record: Read and record U0513 plus any other DTCs and freeze-frame data from all modules.
Reproduce: Note when the code sets (startup, driving, cornering). Attempt to reproduce in a controlled manner.
Visual: Inspect yaw sensor and harness for damage, corrosion, water intrusion, and secure mounting.
Power/Ground: With key on, measure supply voltage and ground at the sensor connector; compare to specification.
Network presence: Use a scan tool or CAN bus monitor to confirm the yaw sensor module's CAN messages are present and updating; compare values to expected (0 deg/s at rest, sensible changes when rotating).
Bus integrity: Check CAN pair continuity and resistance across termination (~60 Ω). Probe CAN_H and CAN_L with scope or high-speed meter to verify proper differential signaling and no stuck dominant/recessive states.
Wiggle test: With vehicle safe, wiggle harness and connector while monitoring live data and DTC status to find intermittent faults.
Isolate: If possible, disconnect the yaw sensor module and verify whether the bus recovers or other modules report lost comms. Reconnect and observe.
Compare: If available, swap with a known-good yaw sensor or use replacement harness to confirm fault moves with sensor or stays (helps isolate wiring vs module).
Programming/calibration: If sensor or module replaced, ensure correct part number, software calibration, and perform any required sensor/module calibration or relearn procedures.
Clear and test: Clear codes, perform a test drive including maneuvers that exercise yaw sensor (gentle turns) and verify code does not return and stability systems behave normally.
Repair/replace: Repair wiring/connectors or replace the yaw rate sensor/module if diagnostics isolate it as the fault. Re-check after repair.

Likely causes

Damaged connector or pin corrosion at the yaw sensor
Failed yaw rate sensor
Network termination missing or CAN bus shorted
Faulty power/ground to the sensor module
Module mismatch or incorrect programming after replacement

Fault status

⚠️ Status

Invalid data received from yaw rate sensor module — communication/data integrity fault detected.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.5-3.0 hours

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