Expert Answers about Chevrolet Colorado

• Troubleshooting SH Error Code On Tekonsha Prodigy P2 After Install On 2022 Chevrolet Colorado
• The SH code is saying the blue wire leaving the controller is connecting to ground some where after the Tekonsha Prodigy P2 Trailer Brake Controller # 90885. Typically this occurs either at the wiring connector for the brake controller or at the 7-Way # HM11141144. You can remove the connectors to verify you do not see any damage to the pins. This can also help you to determine if the issue is inside the 7-way connector if the error goes away after you remove the 7-way. If you have a...
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• How To Test Trailer Wiring To Locate Problem With Left Turn Signal On 2006 Chevy Colorado
• If you have installed the Tow Ready T-One Wiring Harness, # 118301, you will want to use a circuit tester like part # PTW2993 and test the wires going into the converter box and the wires coming out of the converter box. This will help determine if the problem is on your 2006 Chevy Colorado, the trailer or with the converter box. With somebody to turn on the turn signals and step on the brakes, test each wire to see that it is working properly. Also, make sure the ground is attached...
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• Troubleshooting Curt 55510 Trailer Wiring Harness with Low Voltage
• Your problem could be the converter box. Test the wires on the harness before the box and see if you get the same voltage. If you do then the box isn't the issue and it's somewhere in the wiring before that. In this case you'll need to keep tracing the wires towards the front of the truck to find the problem. If the voltage on the # C55510 harness before the converter box is normal and still low at the connector then the converter is bad.
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• Troubleshooting Pacer 3rd Brake Light Module Installation on 7-way Trailer Plug
• In most cases when this occurs, it's down to the wiring being connected to the wrong spots on the 7 way trailer plug. You'll want to be sure you're using the 3 o'clock and 9 o'clock pins when looking at the back of the plug. I've attached a wiring diagram that shows this in better detail that I would ask you to confirm is how you have this wired. If this is exactly how you have it wired please let me know and I will be happy to look into this further.
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• Troubleshooting No Running Lights on Trailer Wiring Install of 2007 Chevy Colorado
• First thing you might try is disconnecting and plugging back in the connection point on the right hand side of the truck. That's the connector that connects to the running light circuit on that side of the truck wiring. Often times this issue gets cleared out by just doing this. If not, you can try taking a circuit tester like # PTW2993 and testing the brown wire leading into the box for voltage when the circuit is active and then check the brown wire that leads to the 4-way. If voltage...
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• Red Light Flashes on Primus IQ After Battery Was Replaced on a 2005 Chevrolet Colorado
• The first step I would take is to reset the brake controller. To do this, you simply unplug the connector at the back of the brake controller for about 20 seconds and the reconnect the connector to the brake controller. I spoke with my contact at Tekonsha and he told me that this can happen when the vehicle batteries are replaced, especially if the brake controller is left connected in the vehicle while the battery is being replaced. If you reset the brake controller and continue to...
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• Troubleshooting a Valterra Electric Waste Valve That Has a Open Valve Light Stuck On
• It could just be a weird connection the wires are making with the switch causing the light to stay on. I'd recommend checking the connections to the switch and make sure they're seated properly and making a good connection to the switch. If the wires going to the switch are fine, and everything is connected properly, then I'd recommend just swapping out the switch with another switch like the Single Momentary Switch # 37213845.
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• Troubleshooting Wiring Harness Failure for 2004 Chevrolet Coloroado
• Checking for shorts is a great first step in troubleshooting your lighting issues. As you mentioned, a regular wiring harness converter box has a max amperage of 2.1 amps per circuit for stop and turn lights, and a max amperage of 5 amps per circuit for the tail lights. The Tail Light Isolating Diodes # 48955 you mentioned have a max amperage of 3 amps. There are several other things to check that might be causing your problems. Checking these additional components will ensure that you...
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• Trailer Left Side Lights Not Working with 2010 Chevy Colorado But Work Fine on Another Truck
• The wiring harnesses for the 2010 Chevy Colorado plug in line with the factory tail light wiring harness so they do bypass the tow package wiring system on the vehicle. But before going that route the problem might be more easily fixed. We just have to figure out where the problem is coming from. The most likely culprit is a dirty or corroded trailer connector on the truck. Make sure that the factory connector on the truck is clean and free of corrosion inside, where the wires attach,...
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• Can Brake Controller Output be Checked with Override Lever
• Yes, if you slide the manual override lever of a brake controller you can then use a circuit tester like part # PTW2992 to test for voltage on the output pin which would be in the 5:00 position.
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• When Running Lights are On Turn Signal Circuits Do Not Work on 2005 Chevy Colorado Wiring Harness
• Normally when there is more load on a circuit, like when the running lights are on and drawing constant power, that is when ground issues show up. I know you have moved the ground once already but try moving it to another location and/or sanding down the bare metal surface for the best connection. To test this you can run a length of wire from the converter ground wire to the negative battery terminal. If the problem goes away then you know an alternate ground location will work to fix...
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• Troubleshooting Lifting Corner of Extang Trifecta Tonneau Cover on 2018 Chevy Colorado
• I reached out to my contact at Extang and the front corner raising is a sign of the clamps not being installed correctly. He said you will want to remove the front clamp by removing the knob and then rotating the body up until the thread shows only about a 1/4 inch. Then reinstall the knob and secure the cover. He said you will want to do this on both sides of the bed. That will tighten the tension on the cover in the front and will also give you a better seal. No additional clamps...
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• Location of Fuse for Trailer Power in 2012 Chevrolet Colorado
• According to page 10-46 of the online owner's manual or the 2012 Chevrolet Colorado the Trailer Auxiliary Power Maxi-Fuse (labeled item D in the linked image) is located on top of a wiring harness. You can refer to this image to help you find this fuse for trailer 12V power.
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• Troubleshooting a Kat's Heaters Custom Fit Engine Block Heater # KH11484 Causes Outlet to Cut Out
• If you have a Kat's Heaters Custom Fit Engine Block Heater # KH11484 that you referenced and it is causing the outlet of your vehicle to cut out then the problem is that the outlet is getting overdrawn either by the heater drawing too much amperage for the outlet to handle or because the heater has a short in the wiring of it and that's causing the outlet to short out. I would recommend you go over the wiring of the heater looking for any cuts or other obvious signs of a short as that...
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• Troubleshooting Vehicle Wiring Harness # 41165 Installation on a 2006 Chevrolet Colorado
• To isolate where the problem is occurring, I recommend testing the 4-Way plug on the # 41165 wiring harness with a circuit tester, without the trailer connected. Have someone assist you by engaging the tail lights, pressing the brake pedal, and flipping on the turn signals as you test each corresponding port on the plug. You should only see a flashing current on the yellow (left turn) and green (right turn) ports when the turn signals are activated. If the functions are reading correctly...
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• Troubleshooting Trailer Light Functions When Connected to 2005 Chevy Colorado
• Most often when one trailer lighting function works until another function is activated the cause is a bad ground. A weak or loose ground connection will limit the amount of current that the harness can deliver to the trailer connector. We mostly see the issue show up once the running lights are turned on. Since running lights remain on continuously they will draw more current than circuits like brake or turn lights that blink or that are on only momentarily. Make sure the white ground...
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• Recommend Weight Dist System with Sway Control For Trailer with GVWR of 4,900 lbs
• The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. Based on that the Reese Steadi-Flex...
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• Troubleshooting Running lights on 4-Way Connector Not Working
• I recommend first checking the fuse box in your engine bay and checking your trailer park lamps fuse to ensure it is not blown or missing. If the fuse is there and working correctly I recommend unplugging the wiring harness from the back of your new dual 7-Way and 4-Way connector and verify that none of the contacts inside of the dual connector are damaged causing power to not be transferred through the plug. While there, ensure all wires are tight in the connector and do not have any...
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• Do Trailer Brake Magnets Need to be Tested Under Load?
• I believe you are asking about testing brake magnets as displayed in the linked help article; you do not need to have a loaded trailer to do so. You will be just fine testing them with an empty trailer.
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• Hopkins Agility Brake Controller Will Not Turn Back On
• If you Hopkins Agility Trailer Brake Controller # HM47294 has not powered back on, it will mean one of two things. The brake controller fuse on your 2019 Colorado blew and will need to be replaced, or the controller shorted and it will need to be replaced. To start with, you will need to check the fuse in position F27 in the fuse box located in the engine compartment, picture included. This will be the one that handles the trailer brake controller. If this has indeed blown, it will need...
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