Charging System: Precaution

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

Check that the battery cables are connected to the correct terminals.
Disconnect the battery cables using a battery quick charger.
Do not perform tests with a high voltage insulation resistance tester, such as a megohmmeter.
Never disconnect the battery while the engine is running.
Check that the charging cable nut is tightened on terminal B of the generator and the relay block.