DTC C1A05-64: Left Rear Height Sensor - Signal plausibility failure: Action

NOTE: If any height sensor fixings were slackened or found to be loose or if a height sensor was changed, the vehicle ride height MUST be re-calibrated

Check that the vehicle is free of obstructions. Check the height sensor for correct installation and torque specifications of fixings. If any fixings require attention, re-calibrate the ride height using the approved diagnostic system. Clear the DTCs and retest
Visually inspect the height sensor for security, damage and correct orientation/installation. Check the sensor connector for damage. Repair/renew as required, clear the DTCs and retest