DTC C1A03-14: Left Front Height Sensor - Circuit short to ground or open: 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 recalibrated

To check height sensor: disconnect electrical connector to height sensor and inspect connector pins & terminals for evidence of corrosion or water ingress. If no corrosion found, disconnect harness at control module and follow steps below
Check for short circuits between any of the three terminals and vehicle ground. Repair circuit as required
Check for electrical continuity between the two connectors for each of the three terminals. Repair circuit as required. Reconnect electrical connector at control module only
Check voltages at terminals within height sensor connector (with sensor not connected): voltage to sensor ground connection should be ~0V, voltage to sensor signal connection should be ~0V, voltage to sensor supply connection should be ~5V. All voltages should be within ± 0.15V. Repair circuit as required, clear the DTCs and retest
If the fault persists, install a new height sensor. Clear the DTCs and retest