This TIPM bypass cable (simple version) for micro2 fuse slots can bypass faulty fuel pump relay problems, test your fuel pump, and allow you to continue driving as you normally would without spending $1500+ on a new TIPM from your dealer. Please visit our Symptoms of Fuel Pump Relay Issues page for further information.
Applicable Tested Vehicles for TIPM Bypass Cables
This TIPM cable type containing micro2 fuses works on the vehicles listed below that contain a TIPM fuse box shown to the right.
- 2014-2019 Dodge Durango
- 2013-2021 Dodge Ram 1500, 2500, 3500
- 2014-2018 Jeep Grand Cherokee
It can also work on any micro2 fuse box where the fuel pump is connected directly to the fuel pump fuse slot (fuel pump relay must come before the fuse slot). Vehicles with the same style fuse box as shown on this page will work. Other fuse boxes and vehicles that utilize micro2 style fuses may work as well. It's normal to have fuses and relays in different locations on this style TIPM, depending on your vehicle options and model.
Includes
- TIPM bypass cable (simple version) for micro2 fuse slots
- Color hard copy instructions
- Support via telephone or email
Capabilities
- Bypasses a faulty fuel pump relay, allowing most vehicles that will not start to operate again. It works for vehicles that won't start (fuel pump relay won't engage) or those that power the fuel pump when the vehicle is off and drain your battery (fuel pump stuck on).
- Checks fuel pump functionality. Service departments may claim that you have a bad fuel pump when the TIPM is really the problem. A TIPM cable will often narrow down your problem to the TIPM fuel pump relay. With the vehicle turned off, our device permits the fuel pump to be powered on (with green LED feedback when using the Standard Cable version) and you'll be able to hear it pumping.
- Can be used to drain the fuel tank by powering the fuel pump while the vehicle is turned off. This capability is useful if improper fuel was dispensed into the tank or fuel tank modifications are needed.
- Fits under your closed TIPM lid.
Advantages

- These cables work, period. Read our customer comments and reviews from many people who've saved thousands of dollars. If our cable doesn't work on the applicable vehicles listed on this page, we'll refund all your money.
- No special skills are required and you'll have your vehicle running again in less than 5 minutes.
- Can be used in lieu of towing your vehicle to the dealership or mechanic.
- Designed and assembled by an engineer and small business owner. Email support is normally immediate and telephone support is available Monday through Friday.
- Continuous cables are custom made for us using our design (14 AWG wire, 20 amps).
- It reduces worry. I carry one in my car at all times.
- All cables are assembled and/or tested in our Maryland (USA) shop.
- A great solution for auto repair shops to diagnose Dodge, Chrysler, Ram, Jeep, or VW "crank no start" or dead battery problems.
Limitations
- It's possible that remote start may not work on some vehicles due to the TIPM disabling the power adapter (F91) used to power the fuel pump relay (F70) in bypass mode. We know this happens with older TIPM-7 style fuse boxes when using an older connection method, but we have not tested to see if this limitation occurs on newer TIPMs shown on this page.
- In bypass mode, it is unknown how it will affect safety mechanisms that shut off power to your faulty fuel pump relay during a crash. However, all faulty fuel pump relays are currently capable of becoming stuck in the on position, making this limitation a moot point. See our FAQ for more information.
- Although rare, in extremely cold weather or with low battery voltages, some TIPMs may disable power to the F91 circuit used by the TIPM cable. We know this happens with older TIPM-7 style fuse boxes, but we have not tested to see if this limitation occurs on newer TIPMs shown on this page.
- If you have an external relay installed, this cable will be ineffective because your dealer cut wires under your TIPM. Read more here regarding how to identify an external fuel relay.
- This cable won't solve problems that are unrelated to your fuel pump (ie. windshield wipers, starter, lights, etc.).
- If your vehicle won't turn over and the starter will not even attempt to turn the flywheel with a properly charged battery, you likely have other issues that our cable cannot solve. See this link for problems unrelated to fuel pump relays.
Which Cable Do I Need?
The following table will help you determine which type of cable is best. We sell two different types of pre-built cables (Simple and Standard) as well as a kit that you can use to build your own. Our standard cable adds a LED and the capability to test your fuel pump relay output. LED feedback is nice when troubleshooting a bad fuel pump relay because you can see if/when it's providing power to your fuel pump. The LED acts just like a test light by lighting up when 12 VDC passes through it.
Cable Version |
Fuel Pump Test |
Fuel Pump Relay Test |
Bypass Mode |
Buy This Cable If: |
Simple (No Feedback LED) |
Yes |
No |
Yes |
You just want your car to work again |
Standard (With Feedback LED) |
Yes |
Yes |
Yes |
You want your car to work again and know why it failed |
Long-Term Usage
Although many have used this cable as a long-term solution for more than 3+ years, we would prefer that you use it to temporarily bypass a faulty fuel pump relay. More information is located in the FAQ tab.
Instruction Manual
A printed color copy of these instructions is included with each order. Download the instructions for our Simple or Standard Test/Bypass Cable (micro2 fuses) using the "Instructions" tab near the top of this page.
Warranty and Returns
TIPM cables are warrantied for 30 days. If you need a longer warranty period (up to 2 years), other fuel pump relay solutions are available. Note that TIPM cables cannot be returned if used or inserted into a fuse box because they are also considered as electrical testing tools (beneficial for customers to rule out fuel pump relays or pumps).
Tips From Other Owners
- If your fuel pump relay is stuck on and it drains your battery, simply remove fuse F70 when the vehicle is off until you can implement a solution. This is easier than disconnecting the battery. Other temporary solutions include tapping on the TIPM (fuse box) to disengage or engage the relay.
- Try starting your vehicle in neutral if nothing happens when you turn the key (or push the start button).
- If your fuel pump relay won't engage and your vehicle won't start, try your remote start or jump start your vehicle. Many have reported success with these methods because there is science behind these actions. Remote start removes power to unnecessary functions, thereby allowing higher battery voltages to reach your faulty fuel relay. Relays like higher voltages. Jumping starting your vehicle provides approximately 14 VDC from the running vehicle rather than 12.5 VDC from your battery.
- If using our TIPM bypass cable and you don't have a ground lug nearby for the alligator clip, you can connect it to an unpainted area on the vehicle chassis (frame).
How To Build Your Own Cable
The design is fairly easy to build and there are two versions, depending on your need. If you have questions, please email us. The simplest version consists of two 20 amp "add a circuit" micro2 cables soldered or crimped together, along with four micro2 20 amp (yellow) fuses. Make sure your add-a-circuit cable can handle 20 amps of current. You might be able to buy them at your local auto parts store, but many people are reporting they can only find the 10 amp version which could cause the wire to overheat since most fuel pumps require 9-10 amps. With this design, you're taking power from fuse slot F90 (rear cigarette lighter) and providing it to fuse slot F70 (fuel pump). This version will keep your vehicle on the road by bypassing a defective fuel pump relay, and allow you to test your fuel pump. Be sure to add some heat shrink or electrical tape to the soldered connection between the two add-a-circuit cables. Directions on how to bypass a defective fuel pump relay and test your fuel pump are listed below.
How We Developed This Cable
If you're curious how we first developed this cable in 2014, visit our How The TIPM Cable Was Born page.
How To Test Your Fuel Pump
- Turn vehicle off
- Open hood and remove 30A fuel pump fuse F70. Verify that F70 is your fuel pump slot.
- Insert one end of your test/bypass cable into the F70 slot of your fuse box, with orientation per the image below if using a Standard Cable with LED.
- Remove the existing fuse in F91/F90. Verify that F91/F90 is your power adapter (cigarette lighter).
- Insert the free end of your test/bypass cable into F90. The F91/F90 fuse slots consist of three terminals (the F90 terminals closest to the lid hinge provide 12VDC power when the vehicle is on or off).
- If your fuel pump is working properly, you'll hear the fuel pump motor (located near your gas tank) if in a quiet environment.

How To Bypass A Defective Fuel Pump Relay And Stay On The Road
- Turn vehicle off
- Open hood and remove 30A fuel pump fuse F70. Verify that F70 is your fuel pump slot.
- Insert one end of your test/bypass cable into the F70 slot of your fuse box, with orientation per the image below if using a Standard Cable with LED.
- Remove the existing fuse in F91/F90. Verify that F91/F90 is your power adapter (cigarette lighter).
- Insert the free end of your test/bypass cable into F91. The F91/F90 fuse slots consist of three terminals (the F91 terminals farthest from the lid hinge provide 12VDC power ONLY when the key is on). This connection provides alternate power directly to the fuel pump, thereby bypassing a defective fuel pump relay.
- You can start, drive, and turn off your vehicle as you normally do. Your test/bypass cable is intended as a temporary solution until you can implement a permanent fix. Due to the large number of vehicle types with fuel pump relay problems, it is unknown if any auto shut down features are affected during a crash. Use this cable in bypass mode at your own risk.
- You can continue to plug low power devices (cell phone, iPad, etc.) into the cigarette lighter, but avoid high current devices.
- If you experience problems starting your vehicle, try cycling the key from OFF to ACC to RUN and then put your foot on the brake and start the vehicle. Some TIPMs appear to conserve power by disabling the F91 circuit during the starting process. Less than 1% have reported this issue while in bypass mode. Bypass mode powers your fuel pump in ACC and RUN modes only, so your fuel pump will be off when the vehicle is turned off. Remote start may not work with this cable.
- If your fuel pump relay has been or becomes stuck in the ON position when the vehicle is off, which can drain your car battery, please remove the lower 20A fuse on the F70 end of the cable. This action will completely disconnect the faulty fuel pump relay from all active circuitry and prevent future battery drainage. Alternate bypass power will still be permitted to travel from the F91 fuse slot through the cable to F70 and to your fuel pump. Then start the vehicle.
NOTE: Make sure there are no sharp bends in the cable, especially near the fuses.
