Question about 2000 Dodge Caravan
Replaced battery alternator tests good but the battery does not charge while the van is running
Posted by Anonymous on
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Posted on Jan 02, 2017
do a continuity test from the large red wire on your alt to the battery,could be a fusible link or broken wire,sometimes a wire will break within the sheathing so it won't be visible by eye,check all conections for corrosion and either clean or repair
Posted on Feb 21, 2009
SOURCE: I have a 2000 Dodge
The green wire leading to the alternator is grounded by the computer to complete the field circuit.
The dark green/orange wire is power supply to the field circuit fed by the auto shutdown relay.
The large output wire out of the stator in the alternator should have battery voltage on it at all times. Test to verify this power at the alternator terminal. There is a fusible link in this feed wire that could have went open circuit.
To test the system manually ground the green wire with the engine running. This is called a full field test. This will put the alternator in full output. If it doesn't, apply positive battery power to the dark green/orange wire with the engine running. This bypasses the auto shut down relay.
Hook up wires at the alternator before starting the engine for safety sake.
Do this much and report back here to me and I will help with the next step in repair.
Posted on Apr 03, 2010
use a volt meter and check the voltage with the engine off. should be 12 volts then check again with engine running it should be 13 to 15 volts if no then the pcm is at fault. the voltage regulator is inside the computer control and you will need to have it checked out at a dealership. if bad will have to replace the computer on van to correct the charging system. hope this will help!!!
Posted on Apr 21, 2010
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