Mechman 2-Pin RVC Bypass Module For Factory 2005 and Newer GM Vehicles — Big Jeff Audio Dealer Platform
Skip to content
Welcome To The Dealer Platform
Welcome To The Dealer Platform


  • The 4-pin regulator style alternator must be used for this to function properly.
  • This method does not apply to stock 2-pin style alternators.
  • Keep in mind this does not work with the factory alternator.
  • You will need a special unit that is built with single ignition switched turn on.

Mechman 2-Pin RVC Bypass Module For Factory 2005 and Newer GM Vehicles P103

This listing includes:

  • (1) Mechman P103 Module

Designed for GM vehicles equipped with a 2-pin regulator and a RVC sensor (Regulated Voltage Control), this module simplifies installation by plugging directly into your vehicle's factory harness. By doing so, it resolves issues related to the check charging system code (battery light).

For optimal functionality, it is important to use a 4-pin regulator style alternator. Please note that this solution is not compatible with stock 2-pin style alternators.

This module is particularly popular among customers seeking to bypass the RVC system to run a stand-alone alternator. This modification results in a more stable voltage output compared to the factory setup, which can experience voltage fluctuations and lower charging voltages due to PCM control aimed at maximizing fuel economy.

It's important to note that this module is not compatible with factory alternators. For proper compatibility, a unit with single ignition switched turn-on is required. When purchasing an alternator, please specify the need for single wire turn-on in the order notes. If you already possess the correct alternator and require only the plug, the P101 harness is also necessary.

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.