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Old 09-09-2012, 10:32 AM   #2
BC_ZX3
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Join Date: Jul 2007
Fan#: 48751
Location: Vancouver, BC, Canada
What I Drive: 2001 Red ZX3 Turbo

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Measure the battery voltage during an attempted start. I think you might find that the battery - when under load - is not providing adequate voltage. It's unlikely all those electronic systems failed at once and the common thread for all of them is that they need a consistent (higher) voltage to operate.

In other words, I think you ruled out battery failure too soon. Try having it load tested or substitute a known good working battery. Also ensure the battery terminal connections are clean, corrosion free and secure.
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