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1993 CHRSLER CONCORDE CHARGING ?

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THE68CAM
New User

Oct 17, 2006, 9:42 PM

Post #1 of 3 (1773 views)
1993 CHRSLER CONCORDE CHARGING ? Sign In
RECENTLY I WAS GIVIN A CONCORDE 1993 . CAR WAS ACTING CRAZY SO I CHANGE THE COMPUTER . IT STARTED AND RAN FINE . BUT NOW ITS NOT CHARGING . SO I DISCONNECTED THE BATTERY CABLE AND ITS DEAD . IT KILLS . SO I REPLACE ALTERNATOR AND GUESS .? IT STILL IS NOT CHARGING . BATTERY CABLE TEST GOOD. ANY IDEAS? THANKS THE68CAM


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Oct 17, 2006, 11:27 PM

Post #2 of 3 (1770 views)
Re: 1993 CHRSLER CONCORDE CHARGING ? Sign In
A stone dead battery will not allow the alternator to charge the system if just quickly jump started.

Also -- even a new alternator can burn out fast if forced to try too hard so always best to charge battery separately.

For readers: If you must jump start a totally dead car leave it hooked up for ten minutes and know that the donor car is at risk also if there's a real problem with the recipient vehicle and battery, T



DanD
Veteran / Moderator
DanD profile image

Oct 18, 2006, 4:28 AM

Post #3 of 3 (1769 views)
Re: 1993 CHRSLER CONCORDE CHARGING ? Sign In
The voltage regulator for the charging system is incorporated in the computer. You may have replaced the computer with one that’ll run the engine but not the charging system?
With the engine running you should have source voltage at the Black/gray wire and the dark green/orange wire at the alternator. If not trace them to where they have gone open.
The dark green wire goes to the computer and is the alternators control wire. If you have source voltage at the two wires mentioned above take a 20amp fused jumper wire and apply ground to the Dark green. If the alternator is ok it will begin to charge. Don’t leave this jumper wire connected to long; this is full fielding the alternator and the voltages will clime very quickly.
If the alternator does charge you’ll now have to confirm whether the dark green wire is open, not making a good connection at the computer or the computer is at fault.
The easiest way would be to find this dark green wire at the computer connector and connect it to ground by back probing the connector. If the alternator kicks on the computer is NFG (no further good).
Dan.



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