Applicable for Fiat 1.2 16V Twin Cam petrol engines (engine code: 176 B9.000, 182 B2.000 and 188 A5.000) e.g. Fiat Punto, Brava and Bravo.
To determine the specified piston position and prevent the camshafts from tuning or hold them in position when changing the timing belt or during other engine repairs.