Code
C0064
LAND ROVER
C — Chassis
Roll Rate Sensor
Views:
UK: 5
EN: 32
RU: 12
AI status
Completed
Completed
100%
Causes
- Open/short or intermittent wiring between roll-rate sensor and control module
- Corroded, loose or contaminated connector at the sensor
- Failed or degraded roll-rate (gyroscope) sensor
- Incorrect sensor mounting, orientation or loose mounting fasteners
- Loss of reference power or ground to the sensor
- Faulty stability/ABS control module or internal CAN communication error
Symptoms
- ESP/DSC/ABS/stability warning lamp illuminated
- Traction/stability interventions or unexpected ABS activation
- Reduced or disabled roll-mitigation/rollover protection features
- Diagnostic trouble codes stored for roll/yaw/acceleration sensors
- Possible airbag/rollover system warning (on some vehicles)
- Vehicle may show degraded stability behavior under dynamic maneuvers
What to check
- Connect a diagnostic scan tool and read DTCs, freeze frame and live data for roll, yaw and lateral acceleration
- Verify battery voltage is within specification before diagnosing (low voltage can cause sensor faults)
- Visually inspect sensor and harness for damage, water ingress, corrosion or loose connectors
- Backprobe sensor connector to confirm reference power (5 V or 3.3 V depending on vehicle), ground and signal presence
- Check continuity and resistance of harness between sensor and control module; perform wiggle test to recreate fault
- Observe live roll-rate signal at rest (should be near zero) and during slow steering input or controlled test drive
Signal parameters
- Output is an angular rate (roll) value reported in degrees per second (°/s); at rest the value should be approximately 0 °/s
- Typical full-scale ranges for automotive MEMS gyros: roughly ±150 to ±500 °/s (varies by sensor and vehicle)
- Many sensors are ratiometric with a mid-supply (e.g., ~2.5 V) zero-rate output for analog types; others report digitally over CAN/SPI/I2C
- Supply/reference voltage commonly 3.3 V or 5 V; check manufacturer specification for exact voltage
- Sensor communicates directly to ABS/ESC module or publishes roll-rate over CAN; communication loss will flag faults
Diagnostic algorithm
- Retrieve all stored codes and freeze-frame with a capable scan tool and note related ABS/airbag/stability codes.
- Verify battery state and charging system; ensure voltage is stable during testing.
- Perform a visual inspection of the roll-rate sensor location (under trim, center tunnel or under dash) and wiring harness for damage, water entry, corrosion or loose connectors.
- Backprobe sensor connector: confirm reference power and ground present with ignition ON. If power/ground missing or out of range, trace and repair supply circuit.
- Monitor live roll-rate data at rest — value should be near zero. With controlled steering inputs or slow turns, observe a corresponding change in roll-rate. No or erratic output indicates sensor or wiring fault.
- Perform continuity/resistance checks between sensor connector and control module pins; repair any open/short circuits and retest.
- Wiggle the harness and connector while monitoring live data or DTC status to find intermittent faults.
- Check the CAN bus and related modules for communication errors; address any CAN faults before replacing the sensor.
- If wiring and module communication are good but data is wrong or sensor fails self-tests, replace the roll-rate sensor with OEM part and secure to correct orientation and torque.
- After replacement or repair, perform any required sensor calibration/zeroing procedure specified by the manufacturer, clear codes and perform a road test to confirm fault does not return.
- If fault persists after sensor replacement and calibration, suspect control module fault or software issue — consult manufacturer technical service information for module-level diagnostics, reprogramming or replacement guidance.
Likely causes
- Damaged connector pins or corrosion at the sensor harness
- Sensor internal failure (MEMS gyro drift or no output)
- Missing or failed sensor calibration after service
- Intermittent wiring caused by chafing or poor routing
- Control module communication error on CAN bus
Fault status
Status
Roll Rate Sensor - Fault detected (signal out of range / communication fault)
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
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