Toyota has taken the extreme step of telling its two drivers to avoid some of the kerbs at the Circuit Gilles Villeneuve at all costs following Friday's repeated suspension failures.

While Ralf Schumacher got away largely untroubled, Jarno Trulli suffered two separate incidents in which his front suspension broke, forcing the team into an urgent investigation without recourse to flying spares out from its Cologne factory. The engineers discovered that hitting certain kerbs was causing problems, and opted to alter the set-up slightly as well as telling both drivers to modify their lines.

"Overnight, we confirmed that yesterday's suspension problem was not caused by an issue with the production batch," senior general manager Pascal Vasselon revealed, "However, in turn eight, you have full steering lock just as you hit a big rumble strip and, with the set-up we were using, these extreme circumstances led to interference between the upright and the wishbone.

"So, today, we reverted to a more classical set-up window for camber, ride height and suspension stiffness, and are totally confident these measures have resolved the issue and made it safe to compete. But, as an extra precaution, we asked our drivers to change their driving line to avoid riding the highest part of the kerbs at that corner."

The team later admitted that Saturday's qualifying session had been its worst of the season, despite Trulli making it into the top ten.



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