DTC C1B12-62: Lower Lateral Accelerometer - Signal compare failure: Action

Check the integrity of the lower lateral accelerometer mountings. Check the lower lateral accelerometer is securely installed. Rectify as necessary. Clear the DTCs and retest
Check body alignment and rectify as required
Using JLR approved diagnostic equipment, check individual lower and upper accelerometer signals and replace faulty sensor if zero 'g' value > +/-0.175g
Using JLR approved diagnostic equipment, check the operation of the vehicle accelerometer and rectify as required
Recalibrate accelerometers if any components have been replaced or repositioned