C0245

Code

HYUNDAI C — Chassis

Yaw Rate Sensor Circuit/Performance

Brand: HYUNDAI

Type: C — Chassis

Views: UK: 13 EN: 26 RU: 16

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Page language: EN

Yaw rate sensor failure (internal fault)
Damaged, corroded or disconnected sensor connector or wiring (opens/shorts/poor contact)
Damaged power supply or ground for the sensor (fuse, wiring, chassis ground)
Faulty ABS/ESC control module or sensor interface
Sensor misalignment or incorrect mounting
Water ingress, corrosion or mechanical damage at sensor

ABS, ESC or traction control warning lamp illuminated
Stability control/ESC/Traction Control may be disabled or limited
Possible unwanted intervention or lack of intervention from stability control during cornering
Diagnostic trouble code(s) stored (C0245)
No engine running symptoms in many cases (problem limited to stability systems)

Connect a scan tool and read all stored codes and freeze frame data
View live data: yaw rate sensor output while stationary and during a low-speed turn
Compare yaw rate data to steering angle and wheel speed sensors for plausibility
Visual inspection of sensor mounting, connector, wiring harness and chassis ground (look for corrosion, damage, chafing)
Check fuses and power/ground at the sensor connector with key on (reference vehicle wiring diagram for pin locations)
Wiggle test wiring and connectors while watching live data for intermittent changes

Sensor may output an analog ratiometric voltage (approx mid-rail at 0 deg/s, varies with clockwise/counterclockwise yaw) or provide yaw rate via vehicle CAN bus depending on model
Typical expected behavior: near-zero yaw rate value at rest, smoothly varying value when rotating; values should be consistent with steering angle and wheel speeds
Reference voltage (often +5 V), ground and signal circuit are present on analog sensors — consult model-specific wiring diagram for exact voltages and pinout

Use a scan tool to read C0245 and any related codes, check freeze frame and live data. Note whether the yaw rate value is present and whether it jumps to unrealistic values. 2) With ignition on, inspect sensor connector and pins for corrosion or damage. Back-probe connector to verify reference voltage and ground are present (compare to wiring diagram). Do not short terminals. 3) If analog signal present, check quiescent voltage at rest (should be near mid-rail) and observe signal while slowly rotating vehicle or turning steering wheel; confirm signal changes smoothly and directionally. 4) Perform a wiggle test of harness and connectors while monitoring live data to find intermittent opens/shorts. 5) If power/ground or signal is missing or out of range, trace and repair wiring, repair grounds or replace blown fuse; re-check. 6) If wiring and supply are good but signal is implausible, swap or bench-test the yaw sensor (or substitute a known-good module where applicable) and re-check data. 7) If sensor replacement is performed, follow manufacturer alignment/calibration/learning procedure for the yaw/IMU and steering angle sensors if required. 8) Clear codes, perform a road test and verify code does not return and that ESC/ABS functions correctly.

⚠️ Status

ECU detected yaw rate sensor circuit/performance out-of-range or implausible. ESC/traction control functions may be limited until fault is resolved.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-2.5 hours

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C0245 — Yaw Rate Sensor Circuit/Performance