Bypass Internal Voltage Regulator Alternator

The voltage regulator for the alternator is in the computer.

Bypass internal voltage regulator alternator.

Without a voltage regulator an alternator may put out up to 250 volts. 04 30 11 10 55 pm post 2084285 i ve posted a question on my charging problems in another thread and got some good answers that led to ordering a new alternator now i m thinking about changing to a internal regulator style instead of the external type i m having now mainly because my speedshop carries the internals in stock and the external one is on order and i want to fix it a s a p. Since 1987 for dodge and chrysler and 1991 for jeep vehicles have external regulator alternators that are controlled by the alternator voltage control module inside the engine control unit ecu computer. Ecm not communicating with alternator s voltage regulator.

This is enough to destroy the car s battery and electrical system. The original 1960 s gm alternator employs an external voltage regulator. The voltage regulator driver is a chip built into the dodge pcm and can only be fixed by 3 methods 1 replace pcm 2 bypass internal pcm voltage regulator with an external one however this will have a check engine light on and a code and the battery guage. If the voltage regulator in the computer does not work you can add an external voltage regulator and then your battery will charge.

Battery is not charging. The voltage regulator is built into the alternator on all chevys made from the 1980s to at least 2010. Simply put the regulator restricts the amount of voltage being sent to the battery. Without a regulator the battery would receive upwards of 30 volts of power while charging which would quickly damage or destroy.

A voltage regulator controls the alternator voltage output to maintain a preset charging voltage for the battery. This is often called the ecc ecm eec or pcm.