Have you actually tested the battery and alternator?
I've seen batteries test well and even charge well, but have internal faults that short and cause overall system voltage to be low. Just one thought.
-cody: maintenance forum moderator
2001 Lexus IS300 - 650whp/610wtq (Virtual Dyno)PTE 6765/AEM Infinity - Auburn Sky Pearl (1 of 1348)
2007 Lexus GS450h
2010 Lexus RX350
1998 Lexus GS300 - 1jz-GTE swap
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