The Japanese Grand Prix stewards have decided Nico Rosberg did not deserve a penalty and so the Constructors' Championship is still up for grabs.
Rosberg and Williams technical director Sam Michael were summoned by the stewards after the race following claims from Jenson Button that the German had set his best sector time during the safety car period.
Button reckoned he could have beaten the German had he been slower and the Briton expected Rosberg to be penalised.
A penalty would have given Button's Brawn team the title, as it needs just 0.5 points to clinch it and both the Briton and team-mate Rubens Barrichello would have moved up a position.
The stewards, however, deemed Rosberg had done nothing wrong.
"The Race Director reported to the Stewards that Car No 16, Nico Rosberg exceeded the time delta from when the 'Safety Deployed' message was displayed until crossing the Safety Car line," a statement from the FIA said.
"The Stewards met with the drivers and the team representatives and considered the telemetry data, GPS records, timekeeping and video evidence. This evidence showed a 'low fuel' message on the drivers display had overridden the time delta information preventing the driver from being able to accurately follow the timing information.
"However the telemetry data shows that the driver from a safety point of view had reacted adequately to the yellow flags and safety car boards. In view of this the stewards intend to take no further action."