TIPM Relays - External


External relay installed in vehicle
External relay installed in vehicle

The installation of an external relay is the not-so-elegant way Dodge/Jeep decided to fix the chronic fuel pump relay issue that plagues many Dodge/Jeep/Chrysler/VW vehicles. Unfortunately, only 2011-2013 Dodge Durango and Jeep Grand Cherokee owners can receive this external relay at no cost under a recall because (according to reports) they were more vocal than others. The recall started in September 2014 and the same faulty fuel pump relay manufacturer and part number is present on nearly all affected vehicles. To identify if you currently have an external relay, please click here.

If your 2011-2013 Dodge Durango or Jeep Grand Cherokee doesn't have the external relay, your dealer can likely install one for free or you can use one of our proven solutions: TIPM Solutions.

Our patent pending TIPM Plug-In Fuel Pump Power Bypass/Test System is a simpler, cheaper, and easier to install alternative to the external relay that doesn't involve cutting wires under your TIPM. Installation takes 5-15 minutes with no reprogramming or dealer visits.

Installation Overview

Owners of affected vehicles outside the recall can attempt to install their own external relay, but instructions only exist for 2011-2013 Durango and Grand Cherokee vehicles (although they will apply to most vehicles - wire colors may be different but pin numbers are often the same). Your dealer may be able to install an external relay on your vehicle (Dodge Caravan, Chrysler Town & Country, Dodge Ram, etc), but prices are often $400+ and better solutions such as our TIPM Plug-In Relay exist. We can only recommend the installation of an external relay similar to the recall for those who are comfortable installing it themselves with cutting and soldering of wires being required. You'll need to partially or fully remove the TIPM from the vehicle in order to gain access to the harness wires that will be cut, soldered, and tapped.

If Problems Still Exist After External Relay Is Installed

If you already have an external relay, you're likely stuck with it because the dealer cut wires under your TIPM that completely disconnected the fuel pump circuit inside the TIPM. The only way around it is to reverse the dealer modification and use one of our TIPM Solutions. However, recent reports indicate that replacing the external relay can help. Fortunately, this relay replacement is simply a matter of unplugging the old and plugging in the new unit and it should take less than 5 minutes to do so. We have them in stock and ready to ship the same day as the order is received. Note that the part we sell is only the relay portion, without the wires and receptacle that should already be installed and soldered to your TIPM wire harness. The relay should be attached to the body of the vehicle near the front headlight and TIPM using a one-way plastic fastener. This fastener isn't designed to come out easily, so you may need to break and replace it with something similar.

Omron G8JN Relay
Omron G8JN 12 VDC/35A Relay
$9 each
No Paypal Account Needed


How To Identify If You Have An External Relay

The positive battery connection is used to feed 12VDC to an external relay, if installed
The positive battery connection is used to feed 12VDC to an external relay, if installed

Many people don't know if their vehicle has an external relay that was installed per the recall. 2011-2013 Durango and Jeep Grand Cherokee owners may have an external relay installed during a trip to the service department of their local dealer. Most other vehicles DO NOT have an external relay installed. To check, locate your fuse box (TIPM) under the hood of your vehicle. Open the black plastic lid and locate a large hex hut in the upper left corner that is your positive battery connection. This connection feeds 12 VDC to your TIPM via a large diameter wire (about as thick as your thumb). If you have an external relay, you'll also notice a second smaller wire under the hex nut that runs outside the TIPM. Follow this wire and it should lead to the external relay - a small black box that is normally attached close to the headlight within 1-2' of your fuse box.

Installing An External Relay

New external relay installation diagram showing two wires that must be cut/soldered and a third wire that is tapped/soldered
New external relay installation diagram showing two wires that must be cut/soldered and a third wire that is tapped/soldered

This repair option can be performed by your dealer if your vehicle is recalled, or you can attempt to install an external relay on your own. This solution is Star case #S1308000399 where you'll need to purchase a external fuel pump relay to take the place of the defective TIPM-mounted fuel pump relay. You can also search for part number CBP4P541AB on the internet, which is the complete external relay kit. The bad thing about this solution is that it involves cutting, soldering, and heat shrinking several wires in multiple wire harnesses. After going this route, you'll always need to count on the external fuel pump relay (even if you eventually purchase a new or used TIPM) because you've cut the fuel pump wires leading to the TIPM fuel pump relay. Our TIPM test/bypass cable will not work to test your fuel pump, fuel pump relay, or bypass a faulty relay once TIPM wires are cut.

The September 20, 2014 recall performs the above modification, which is a cheap and easy way for Dodge to repair faulty fuel pump relays. This is Dodge/Jeep's version of a duct tape, zip tie, Elmer's glue fix. I'm not impressed. Manufacturers should replace each TIPM or provide a TIPM that is serviceable!!

Many owners had difficulty in purchasing the external relay kit from their dealer because their dealer claims the kits are intended for Durango and Grand Cherokee owners only. We continue to receive many calls from owners who vehicle still will not start after the recall modification has been performed.


External Relay
External Relay Kit (CBP4P541AB, 68142156aa, or Wells 20370)