Expert Answers about Jeep Grand Cherokee

• Troubleshooting Trailer Running Lights with Potential Grounding Problem
• It sounds like you have the lights wired properly, but if the trailer's main white ground wire is not grounded to the trailer frame it is quite possible that some light functions will work while others will not. Often it can happen that a weak ground will allow enough current for some lighting functions to get through, but not enough for other functions. Running lights, which stay on, draw more power than other lights (brakes and turn signals) that are on only briefly. This could be why...
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• Troubleshooting Trailer Lights that Dont Work When Headlights are On
• The problem you are having is a classic ground issue. If the ground wire to the trailer frame or the tail light grounds are not connected securely to clean, rust and paint free surfaces then when the headlights are turned on the extra amperage draw for the running lights will cause all sorts of lighting issues. I would start by removing the ground wire at the trailer coupler and cleaning up the connection point and re-securing it to the trailer frame. Next I would check the ground connection...
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• Solution for Threaded Hitch Pin that Won't Thread into Bike Rack
• The anti-rattle device part # HE6001 that you referenced has been confirmed as a fit for your Advantage SportsRack glideAWAY Bike Rack. Most likely what is happening is that the threads of your bike rack are dirty or rusty and need to be cleaned out so that the bolt will thread into it. I attached a help article that details how to do this in a similar situation for you to check out. If the rack's original anti-rattle bolt still will thread into the rack then you will want to compare...
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• Trailer Turn Signals and Brake Lights do not Work on a 1998 Jeep Grand Cherokee Laredo Limited 5.9
• Since your 1998 Jeep Grand Cherokee came with the factory tow package, I would guess you have blown fuses for the tow package turn signals and brake lights. Typically, you will have one fuse for the tow package or trailer left turn signal and brake light and one fuse for the right turn signal and brake light. I recommend checking your owners manual or fuse box legend to locate the tow package fuses and look for blown fuses. This should solve your problem without having to install a separate...
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• Only Trailer Turn Signals Work on Trailer Wiring Harness for a 2000 Jeep Grand Cherokee
• The first thing I would check are any fuses or relays related to the factory trailer wiring connection point of the 2000 Jeep Grand Cherokee. Use the owner's manual to find their locations. Since this vehicle could have come with a factory tow package, it is possible the fuses are not there or need to be replaced. You can also check where you have plugged in the connector to see if there are any bent pin or if the factory side is dirty or corroded. Test the wires going into the converter...
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• Troubleshooting Factory Tow Package Light Not Working On a 2015 Jeep Grand Cherokee
• On a 2015 Jeep Grand Cherokee that came with a factory installed tow package it should already be flashed from the factory. If your lights are not working first I recommend checking the fuse box in your engine compartment for missing or damaged fuses. The terminals for the parking and signal lights are F29, F53, and F81. If all your fuses are good I recommend checking the wiring connectors that go into the factory harness. You will want to ensure that they are fully seated into their...
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• Troubleshooting 2015 Jeep Grand Cherokee Trailer Wiring
• Checking your fuses is definitely the first place to check if some of the functions on your 2015 Jeep Grand Cherokee trailer wiring aren't showing up. Using a circuit tester like part # PTW2992 you can test the functions for your 4-Way/7-Way to see which functions aren't working correctly. According to the online owner's manual the following fuses are for the following functions: F11 - Trailer Tow Electric Brake F28 - Trailer Tow Backup Lights F29 - Trailer Tow Parking Lights F30 - Trailer...
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• Loud Banging Noise Coming From the Hitch Area When Accelerating
• Assuming that the hitch was properly installed, what you are experiencing is most likely your drawbar moving around in the receiver. This is a fairly common occurrence, the drawbar is meant to fit fairly snug into the receiver, but differences in manufacturing tolerances can allow for some movement. Using a cushioned ballmount like part # AMSC2 would help eliminate most of the noise you are experiencing. Cushioned Trailer Hitch Ballmounts protect the towing vehicle drive-line, hitch assembly...
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• Troubleshooting Right Brake and Turn Not Working on Trailer Towed by 2015 Jeep Grand Cherokee
• To determine if your fuse is the culprit start off by taking a circuit tester like part # PTW2992 and testing both sides of the fuse to make sure that it is getting power on both sides. If it is then the problem is elsewhere on your towing setup. If there isn't power getting to both sides then you will need to take your 2015 Jeep Grand Cherokee in to a shop and have them look at it. If there is power going through the fuse then the next step is to check the connector with the same tester...
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• Troubleshooting Curt TriFlex Brake Controller Showing Flashing DC And Locking Brakes
• I reached out to my contact at Curt and the DC flashing on your Curt TriFlex Trailer Brake Controller # C24VV is showing that your trailer is disconnected from the brake controller. This code is telling you that there is an issue between the contoller and your trailer brakes, that there is a short somewhere. This could be corrosion at the connection, a nick in the wire somewhere or a short on the trailer itself. I recommend checking your controller first. Using an incandescent circuit...
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• Troubleshooting T-One Harness On 2010 Jeep Grand Cherokee With Intermittent Blinker
• Many times corrosion can cause problems like you are describing on your 2010 Jeep Grand Cherokee. A loose ground can cause intermittent problems as well. You want to make sure the ground wire is attached to a clean, bare metal surface. If you find green and/or white corrosion inside the connector, that will probably be what is causing the problem. You will need to clean this corrosion out and make sure the connections are secure. If you have it cleaned out and find it is working, I recommend...
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• Does 40 Amp Circuit Braker Need to be Installed on 1998 Grand Cherokee if One Cannot be Found
• If you really want to you could connect a 40 amp circuit breaker like part # 9510 on the 12V power line of the 1998 Jeep Grand Cherokee but it really isn't necessary. As long as it is OEM wiring on your Jeep then it should be up to the standards and a circuit breaker shouldn't be needed. Typically manufacturers will have something like this already installed on the vehicle but we have to be careful with aftermarket products because we are using completely new wiring.
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• Troubleshooting Five Wires that Turn into 4-Flat Connector
• Sounds like you want to replace the vehicle side 4-way on your Jeep. If that is the case, you will want to use a circuit tester like part # PTW2993 and test the function of each wire. I have attached a couple of helpful articles about wiring and how to troubleshoot.
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• Troubleshooting Brakes Not Working With Brake Controller on Jeep Grand Cherokee
• There is some troubleshooting I can help guide you with, and though you never mentioned what Tekonsha brake controller you have, I am going to assume it is the Voyager # 39510 because you mentioned the green light going on without your trailer connected. If this is happening that means the Voyager is picking up a load on the blue brake output wire. This could be a number of issues but I would start by taking a look at the connector on your Grand Cherokee. If there is corrosion on it,...
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• Troubleshooting P. L. Code On Tekonsha Primus IQ Brake Controller
• The P.L. error code on your Tekonsha Primus IQ brake controller # TK90160 is a power interruption while brake pedal is depressed. This is most likely a brake switch or wiring short. I recommend checking the red brake wire coming from the cold side of the switch to ensure it is cold when the brake pedal is not pressed and getting 12V when it is pressed. I recommend using a circuit tester like # PTW2993 to check this. If the wire is not getting power, probe the wire to find the short...
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• Is 4G Used with the Linxup GPS Tracking Device Obsolete
• The Linxup GPS Tracking Device part # 300-AT3-S comes with one year of service using 4G towers for signal. This will allow you to track the trailer wirelessly using a mobile app. Although there has since been the creation of 5G tower, there are very much so many 4G towers still in existence and roughly 90% of service out there today still uses 4G.
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• Trailer Tail Lights Come On for a Few Seconds then Shut Off with a 1996 Jeep Grand Cherokee
• There could be a few reasons why this is happening. The first thing I want you to do is go ahead and disconnect the trailer. Then use a circuit tester, like # PTW2979 if needed, to test the wires leading into the converter box for harness # 118349. Run through all the functions of the vehicle (left/right turn signals, brake lights, and running lights) while testing the wires. If the signals are not correct going in there that indicates a problem with the vehicle wiring that will need to...
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• Is It Okay for Equal-i-zer Head Unit to Sit at An Angle
• I think your gut is right in this instance. If makes sense that you would want the head part of a towing system to be level, but weight distribution, like your 6K Equal-i-zer # EQ37060ET, have to be set up a little differently since they are designed to bring everything back into level. The installation instructions for this system are linked for you to check out, or you can share them with another trailer shop if you don't feel comfortable setting everything up on your own.
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• Troubleshooting Trailer Lights When Connected to 2005 Jeep Grand Cherokee Limited
• The best way to troubleshoot trailer lights not wiring is to test each half of your towing rig separately. So for your 2005 Jeep Grand Cherokee you'll want to use a circuit tester like part # PTW2979 to ensure that each of the pins are sending power back to the various functions. Since it sounds like you already tested this your next step is to test the wiring on your trailer. You can test the trailer wiring by either plugging it up to another vehicle or by taking a 12V battery, grounding...
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• Troubleshooting Curt T-Connector Wiring Harness # C55369 on a 2003 Jeep Grand Cherokee
• If the enclosed trailer that you towed with your 2003 Jeep Grand Cherokee had too many lights, then it could have overloaded the converter on the Curt T-Connector Wiring Harness, part # C55369. Each incandescent taillight draws about 2 amps and side marker lights typically draw about 0.5 amps each. Most standard converters allow up to 4 amps to pass through them. A standard converter cannot have any more than 1 taillight on each side. I would recommend using a circuit tester like the Circuit...
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