Question about 1999 Chrysler Concorde
Actually, although rare, this could be a computer issue.
The voltage regulator is built into the computer on your Concorde and may not be completing the circuit.
I'm not sure how you verified the alternator is good other than you removed it and had it tested.
To verify the problem is in the computer, find the orange/dark green wire that supplies power to the alternator.
This is fused power to the field. Verify it has 12.5 volts positive. If not, that will need to be repaired.
If it is OK, then find the dark green wire that also hooks to the alternator.
This wire leads to the computer which controls the amount of ground to regulate the amount of output from the alternator stator.
Attach a wire with an alligator clip to the dark green wire terminal on the alternator.
Attach a voltmeter to the battery.
Start the car and touch the other end of the attached wire for a few seconds (no more than a minute) to the NEGATIVE battery terminal.
If the alternator begins to charge you will need to verify the green wire is good to the computer.
If OK, replace the computer.
If you need more assistance with this issue, let me know here.
Thank you for using FixYa.
Posted on Mar 28, 2011
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Posted on Jan 02, 2017
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