Question about Dodge Cars & Trucks
Wiring, fuse and or fusible link, bad alternator... we can't rule any of them out so you have to do the work or pay someone to rule them out one at a time
Posted on Apr 10, 2015
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Posted on Jan 02, 2017
SOURCE: The alternator works, but the
You say the alternator works so I have to assume you have used an ammeter and checked the alternator output at various loads or engine rpm's to ensure it's meeting its peak charging output, am I right? So that means if the battery is not charging then the battery itself has a weak cell and is not charging or you have a loose connection at your battery or the wiring to the alternator itself is bad or not making a good connection.
Posted on Feb 23, 2011
1997 DODGE DAKOTA CHARGING SYSTEM
The amount of amperage produced by the alternator is controlled by the Electronic Voltage Regulator (EVR) circuitry within the Powertrain Control Module (PCM)
EVR circuitry is connected in series with the alternator field driver terminal and ground. A Battery Temperature Sensor (BTS), located in the battey tray under the battery, is used to sense battery temperature.
Sensed battery temperature and data from monitored line voltage is used by the PCM to adjust the battery charging rate. This is accomplished by cycling the ground path to control the strenght of the alternator magnetic field.
The PCM then compensates and regulates alternator amperage output accordingly.
If a problem is sensed in a monitored circuit, a Diagnostic Trouble Code (DTC) will be stored in PCM memory and the Malfunction Indicator Light (MIL) (commonly refered to as the "check engine light") will be illuminated, providing certain criteria have been met.
DTCs can be read using Chrysler's Diagnostic Readout Box (DRB-III) or a generic scan tool.
When diagnosing any problem concerning the charging system on this vehicle, it is recommended that you begin by scanning the PCM for fault codes in order to eliminate certain possibilities and provide a more accurate and timely diagnosis.
If you have any fault codes pertaining to your charging system, please post them in a reply on this page and I will be happy to guide you through the diagnosis process.
Posted on Oct 21, 2011
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