C0064 indicates a fault in the Roll Rate Sensor circuit, which monitors the vehicle’s roll (side‑to‑side) motion to aid stability control systems. The PCM detects an abnormal voltage or signal from the sensor and stores this code.
The sensor itself has failed or its internal wiring is broken, producing out‑of‑range signals.
Bent, frayed, or corroded wires or loose connector pins can cause intermittent or no signal to the PCM.
A recent pothole strike or suspension component failure can damage the sensor housing or mounting.
A poor ground path can create erratic sensor readings, especially in wet or salty conditions.
Only after ruling out sensor and wiring issues should a PCM internal fault be considered, which is uncommon for this code.
Clearing the code may turn off the warning temporarily, but if the underlying fault remains, the code will reappear.
No. The PCM is rarely at fault for C0064. Replace the PCM only after confirming the sensor, wiring, and grounds are all functional.
The stability control system may be disabled, reducing traction and cornering assistance, which can affect handling safety.
Yes, many manufacturers refer to the same component as a roll or yaw rate sensor; it measures angular velocity about the vehicle’s longitudinal axis.