Chevy Silverado Window Issues (Door Wiring Harness Replacement & Common Door Troubleshooting) 🔧🚚

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The driver's side door on this 2014 Chevy Silverado was having an intermittent electrical problem: the windows would only roll down when the door was open. This kind of weird, intermittent issue is a classic sign of a broken door wiring harness!

In this video, Luke from Maddox Mechanic walks you through the entire process of diagnosing and replacing the broken wiring harness, while offering invaluable troubleshooting advice for any vehicle door.

We cover three main automotive door issues:
Intermittent Window/Electrical Issues: Diagnosis points directly to the wiring harness where it flexes at the door hinge/boot [00:39].

Lock Actuator Failure: If one door won't lock, the electronic latch assembly is often the culprit [01:08].

Window Rolling Trouble: A slow, struggling, or binding window usually means the window regulator assembly is failing [01:22].

Installation Highlights:
Door Panel Removal: A detailed look at screw locations and the correct trim tool technique to avoid marring plastic [02:00].

The Hidden Screw: A crucial tip for the Silverado door panel—don't forget the screw under the hidden access cover [02:43]!

Safety Precaution: Always unplug the battery when dealing with the door harness, as it contains an impact sensor for the airbag system [05:51].

Post-Repair Testing: How to test all windows and locks before snapping the trim back on [12:21].

Pro Tip: Always clean the panels before handing the vehicle back to the customer [13:30].

Video Timestamps for Easy Navigation
[00:29] - Diagnosis: Intermittent Window Failure (Door Open/Close) 🚪

[01:08] - Common Issue 2: Broken Door Latch/Lock Actuator

[01:22] - Common Issue 3: Failed Window Regulator

[02:00] - Door Panel Removal Tips (Common Screw Locations)

[02:43] - Silverado Tip: Finding the Hidden Screw 💡

[05:51] - Safety Warning: Airbag Sensor & Unplugging the Battery

[06:23] - Examining the Old, Broken Harness 💔

[06:43] - Tip: Checking the Main Door Connector for Corrosion (Water Intrusion)

[07:49] - Installation Process: Routing the New Harness

[10:11] - Witness Marks: Aligning the Airbag Sensor on the Door Shell

[12:21] - Post-Installation Functionality Test

[13:30] - Pro Tip: Clean Up! ✨

[15:36] - Final Check and Conclusion

🔗 Relevant Links
Video URL:    • Chevy Silverado Window Issues (Door Wiring...  

Channel: Maddox Mechanic

#Tags
#ChevySilverado #WindowTroubleshooting #DoorHarness #WindowRegulator #LockActuator #AutomotiveRepair #DIYCarRepair #Silverado #DoorPanelRemoval #MaddoxMechanic

Codes: B316B-02 B3205-4B U0100-00 U0101-00 U0121-00 U0131-00 U1534-00 U1538-00