On the 97 Dakota the manual states that you can still read the T'C's with
the MIL light by turning the ignition off, on 3 times. The DLC connector
diagram shows terminal 12 as the 'RWAL Diagnostic Enable', but does not
indicate if it should be jumped to ground or 12v+. It does not indicate
codes by just turning the key - on, off, on, off, on. I know on the GM
vehicles you had to insert a jumper to get the MIL to display. The 98 and
later Dakotas must use a scan tool. I have ordered a scan tool, but would
like to use the MIL light for now to check out what is setting the code.
Thanks for any info about this you could provide.