If your problem was just battery failure, 3 heat cycles will do it (cold to
normal x 3) Any dealer can confirm the fault later as it will be 'logged'
into the ecm. With the ignition on, disconnecting the battery will certainly
'log a fault' without any damage.
Be aware that Daytona's around 99 had problems with earth connectors. There
is a loose plastic plug in the battery area into which all the earth lines
are gathered. Have a look at the plug for a burnt jumper sometimes visible
due to discolouring of the plastic housing. The fix here is to dump the ring
connecter (plastic bit) and consolidate all the leads by soldering them
together and adding an extra earth .
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