C0064: Roll Rate Sensor

What it means

This code identifies a fault associated with the roll rate sensor. The specific failure depends on the diagnostic subtype.

How it works

The roll rate sensor measures how quickly the vehicle body rotates from side to side, helping the stability-control module assess body motion during cornering. C0064 indicates a fault associated with the roll rate sensor; the diagnostic subtype determines the precise failure condition.

Common causes

Most likely first.

1. Faulty roll rate sensor
2. Damaged or loose sensor connector
3. Open or shorted wiring
4. Sensor misalignment or lost calibration

Symptoms

• ABS or stability control warning light
• Traction control warning light
• Stability control may be limited or disabled
• Unexpected stability control intervention

How to diagnose it

1. Read the stability-control module's freeze-frame and subtype information, then check live roll-rate data with the vehicle stationary and during a gentle, safe turn.
2. Inspect the roll sensor connector and wiring for looseness, corrosion, damaged pins, or chafing.
3. Check that the sensor is firmly mounted in its specified orientation and has not shifted or been disturbed.
4. Test the sensor circuit and output using the manufacturer's procedure and specification.
5. If electrical checks pass, confirm whether the subtype requires calibration or replacement.

Common fixes

• Reconnect a loose roll rate sensor connector.
• Repair damaged sensor wiring or connector terminals.
• Restore the sensor's specified mounting position and perform required calibration.
• Replace the roll rate sensor if tests confirm an internal fault.

Can I keep driving?

Stability control may be limited or may intervene unexpectedly, while normal braking may remain available. Drive gently, avoid abrupt cornering and slippery conditions, and stop if the system applies braking unexpectedly.