RpmExtreme GM Alternator Charging Request Module

 GM Alternator Charging Request Module
Part Number: EZ-ALT-REQ - EZ-ALT Charging Request Module

Available Options

Retail: $299.00 Web Price: $249.00

Product Description


This module will output the Alternator Request signal to the GM ECU. This signal was opriginally sent from the GM BCM and would tell the ECU what voltage to command the alternator to. Without a BCM your ECU will output a default voltage message thats normally around 13.2 volts.  Once you install our module your ECU will command the alternator to around 14 volts.


This module installs quick and easy with a 4 wire hookup

power, Ground, CAN+, CAN-


This unit has been verified to work with a E38 ECU E92 and E67