Tekonsha Tow Harness, 7-Way Complete Kit TK22115TekonshaOriginal price was $325.00. Current price is $244.72.Out of Stock
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2022 - 2025 Jeep Grand Cherokee
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2021 - 2025 Jeep Grand Cherokee L
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Tekonsha Tow Harnesses are the replacement for your factory electrical connector to the back of your vehicle. These harnesses are used to link the wiring from your vehicle to the trailer when towing. Tekonsha Tow Harnesses feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of Replacement Tow Harnesses. Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 22126 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 5.3 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 7 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 7 |
| WIRE GAUGE: | 18 AWG, .85 AVSS |
| POWER LEAD REQUIRED: | YES |
| ELECTRICAL SYSTEM TYPE: | 2-WIRE SYSTEM |
| HARDWARE INCLUDED: | NO |
| AMPERAGE: | 30 A |
Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2022 - 2025 | Jeep Grand Cherokee | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
| 2021 - 2025 | Jeep Grand Cherokee L | Tow Harness Wiring Package Drilling Required Install Time is 120 minutes |
Yes, the Tekonsha Tow Harness, 7 Way Complete Kit TK22126 (Part #TK22126) is designed to fit the 2022-2025 Jeep Grand Cherokee.
The Tekonsha Tow Harness, 7 Way Complete Kit TK22126 (Part #TK22126) fits the following vehicles: 2022-2025 Jeep Grand Cherokee; 2021-2025 Jeep Grand Cherokee L. Always verify your specific year, make, and model before ordering.
The Tekonsha Tow Harness, 7 Way Complete Kit TK22126 (Part #TK22126) fits 2022-2025 Jeep Grand Cherokee models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
The Tekonsha Tow Harness, 7 Way Complete Kit TK22126 (Part #TK22126) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, this kit is designed specifically for the Jeep Grand Cherokee L. It is a complete vehicle kit that includes all necessary components for installation.
Required tools: Phillips #2 screwdriver, wire cutters, tester or volt meter, wire strippers/crimpers, 8mm & 15mm socket, trim panel puller, ratchet, Torx T-25, and heat gun.
Yes. The first step is to disconnect and isolate the vehicle's negative battery terminal before beginning any installation work.
Drilling may be required. You may need to drill a 3/32" hole for the ground wire eyelet near the T-One connector, or you can use an existing ground stud. Do not drill into the vehicle floor or bed. Always verify what is behind any surface before drilling.
The kit includes one 25 AMP fuse for the tow harness power module and two 30 AMP fuses: one for the 7-way harness and one for the brake control harness. Do not exceed these amperage ratings.
Do not exceed: maximum stop/turn/backup light 2 per side (4.2 amps), maximum tail lights (7.5 amps), maximum 7-way 12 volt + (30 amps). Overloading the circuit can cause fires.
No. The brake control harness is included, but the brake control unit is not. The harness is designed to work with Tekonsha brake controls 90195, 90885, or 90160, which must be purchased separately.
No. The manual states "Mount 7-Way (Bracket not included)." You will need to source a mounting bracket separately.
The kit includes: 24 cable ties (8.5"), 1 cable tie (14.5"), 2 wire taps, 1 × 25 AMP fuse, 2 × 30 AMP fuses, 4 ring terminals, 3 fuse holders, 4 yellow butt connectors, 1 double-sided tape, T-One connectors with green and yellow wires, 7-way harness, brake control harness, body harness, power module, and convoluted tubing. The brake control unit and 7-way mounting bracket are not included.
The manual specifies this kit is designed for the Jeep Grand Cherokee L. The manual does not confirm compatibility with other vehicles. Contact Tekonsha or consult a fitment database to verify compatibility with other models.
The approximate installation time is 120 minutes (2 hours). Actual time may vary depending on your experience level and vehicle condition.
Yes. You must open the hatch, locate the trim panels covering the taillights, use a T-25 Torx bit to remove the mounting screws on both driver's and passenger's sides (being careful not to break the trim panel mounting tabs), remove the taillight mounting screws, and set the taillights to the side. You will also need to disconnect the vehicle wiring harness from both taillight sockets.
On the passenger's side, insert the T-One connector end with the green wire between the vehicle wiring connectors and lock into place. Be careful not to damage the locking tabs and ensure connectors are fully inserted with locking tabs in place. On the driver's side, plug the T-Connector harness containing the yellow wire between the vehicle's mating connectors. Both connections should be made at the rear combination light sockets.
Mount the T-One connector black box underneath the vehicle, behind the rear bumper fascia on the passenger's side, using the double-sided tape provided. The epoxy side of the module must be pointed towards the ground to prevent water buildup.
Locate a suitable grounding point near the connector, such as an existing ground stud, or drill a 3/32" hole and secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed. Clean dirt and rustproofing from the area before securing the ground connection.
Starting on the passenger's side, route the 18-gauge blue wire behind the side cargo trim panels and up above the headliner. On the driver's side, locate the group of wires and use a scotch lock to connect the 18-gauge blue wire to the white wire with purple stripe.
Starting underneath on the passenger's side, connect the black/blue/red wires from the jacketed round cable to the module's black box. Route the body harness's black wire to the vehicle's positive post underneath the hood using a 30-amp fuse holder (7-way), butt connector, and ring terminal.
When routing the body harness wire through a grommet and along the exterior of the vehicle, be careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Route wires following existing vehicle cabling along the sills and into the engine compartment.
1. Route the white/blue/black wires through an existing grommet on the firewall into the engine compartment (create a small hole in the grommet if needed). 2. Route the white wire to an existing vehicle chassis ground point using a provided ring terminal. 3. Route the black wire to the vehicle's positive post using a 30 amp fuse holder (brake control), butt connector, and ring terminal. 4. Connect the blue wire (electric brake output) to the body harness blue wire using a butt connector. 5. Connect the red wire (cold side input) to the body harness red wire using a butt connector. 6. Cover the blue/black/red wires (and partially the white wire) from the grommet to the fuse holder with supplied convoluted tubing. 7. Secure the brake harness connector near the desired brake control mounting location.
Determine the 7-way mounting location. Route the 7-way harness containing the 7 wires behind the rear bumper fascia and over the bumper support bracket towards the mounting location. Using the wire insertion detail provided in the manual, pin the 7-way connector. Connect the 7-way connector to the 7-way socket and mount it (note: bracket is not included).
Green wire: tail lights. Blue wire: trailer brakes. Black wire: ground. Red wire: left/stop light. Brown wire: right/stop light. Yellow wire: backup light. White wire: ground. The T-One connector uses green (passenger side) and yellow (driver side) wires to connect to the rear combination lights.
The body harness uses 18-gauge wire for the red/black wires. The 12 GA (12 gauge) red wire connects to the positive battery post.
Apply heat directly to the butt connectors using a heat gun or other heat source, working from the center out to the edges, until the tubing recovers and the adhesive flows. Allow the connectors to cool before inspecting the splice and checking integrity. The kit includes 4 yellow butt connectors for various wire connections.
The kit includes 2 wire taps. These are used to connect wires without cutting the existing vehicle wiring. The manual specifically mentions using a scotch lock (wire tap) to connect the 18-gauge blue wire to the white wire with purple stripe on the driver's side.
1. Secure the harness with the provided cable ties to prevent damage or rattling, avoiding areas that would pinch, cut, or melt the wire. 2. Replace all coverings, grommets, and other components that were removed. Seal any altered grommets with silicone. 3. Reconnect the vehicle's negative battery cable. 4. Test and verify the installation with a test light or trailer once installed.
After installation is complete and the negative battery cable is reconnected, test and verify the installation with a test light or by connecting an actual trailer. This will confirm that all lights and brake functions are working correctly.
Wear safety glasses during installation. Verify what is behind any surface prior to drilling to avoid damage to the vehicle and/or personal injury. Do not drill into the vehicle floor, bed, or any exposed surfaces. When routing wires, avoid hot pipes, heat shields, fuel tanks, and other points that may pinch or break the wire. Ensure the module is mounted with the epoxy side pointed towards the ground to prevent water buildup.
The manual does not specify ongoing maintenance requirements. However, you should periodically inspect the installation to ensure cable ties are secure, connectors remain fully seated, and there are no signs of wire damage or corrosion. If you notice any issues, refer to the troubleshooting guide or contact a Tekonsha-approved installer.
First, ensure the T-One connector ends are fully inserted and locked in place. Then remove the tow harness power module 25 amp fuse for 10 seconds and repeat the test. If the problem persists, check the chassis grounds and ensure ring terminals are in full contact with the vehicle's chassis. Remove the 25 amp fuse for 10 seconds and repeat the test.
1. The installation may have activated circuit protection. Start the vehicle and turn all functions off (tail/headlights, brake, and turns). Remove the tow harness power module 25 amp fuse for 10 seconds and repeat the test. 2. Ensure the 25 amp fuse is fully inserted into the fuse holder with no breaks. 3. Verify the fuse holder is connected properly to the positive post of the battery. Remove the 25 amp fuse for 10 seconds and repeat the test. 4. Ensure the module is connected to B+ (battery positive). Using a tester or volt meter, check for voltage on either side of the yellow butt connector near the module. Remove the 25 amp fuse for 10 seconds and repeat the test.
Cause 1: T-One connector ends not fully inserted or locked. Solution: Ensure T-One connector ends are fully inserted and locked in place. Remove the tow harness power module 25 amp fuse for 10 seconds and repeat the test. Cause 2: Poor chassis ground connection. Solution: Check chassis grounds and ensure ring terminals are in full contact with the vehicle's chassis. Remove the 25 amp fuse for 10 seconds and repeat the test.
1. Circuit protection may have been activated. Start the vehicle, turn off all functions (tail/headlights, brake, turns), remove the 25 amp fuse for 10 seconds, and repeat the test. 2. Verify the 25 amp fuse is fully inserted with no breaks. 3. Confirm the fuse holder is properly connected to the battery positive post. 4. Check that the module is connected to B+ using a tester or volt meter to verify voltage on either side of the yellow butt connector near the module. Remove the fuse for 10 seconds and repeat the test after each check.
Matt
The staff was able to quickly assist me with locating the correct product I needed. Shipping was really fast. Item arrived in 2 days. Will be using TowUniverse again!!
May 22, 2023
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