Driver Rear Window Not Working? Step-by-Step Diagnosis on a 2013 Honda CR-V
If you’ve ever run into a power window that suddenly stops working, you know how frustrating it can be. It’s one of those issues that seems simple on the surface—but if you don’t approach it correctly, you can waste time, replace the wrong parts, and still end up with the same problem.
In this case, we’re working on a 2013 Honda CR-V with a driver-side rear window that won’t move at all. No noise, no movement—just dead. These are the kinds of symptoms that come up all the time when diagnosing car problems, and they’re a perfect example of why proper automotive troubleshooting matters.
Let’s walk through this step by step, just like I would in the shop.
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Vehicle Overview
We’re dealing with a 2013 Honda CR-V, a platform known for reliability but still prone to normal wear-and-tear issues—especially in electrical components like window motors and regulators.
Vehicle Concern
The complaint is simple: the driver-side rear window does not operate at all.
No movement. No sound. No intermittent behavior. Completely inoperative.
These symptoms are important because they help narrow down the direction of your diagnosis right from the start.
Initial Inspection
Whenever I’m diagnosing car problems like this, I start with the basics.
First, I verified the concern—always step one. The window did not respond from either the master switch or the rear door switch.
Next, I checked the other windows. All other windows were functioning normally. That tells us we’re not dealing with a global power window issue or a main control failure.
Then I hooked up a scan tool to see if there was any data or fault codes related to the rear window system.
Codes
There were no codes stored, and more importantly, no data parameters available for the rear window circuit.
That’s not unusual. On many vehicles of this era, especially this platform, rear window motors are not monitored by the control module. So you’re not going to get much help from a scan tool here.
This is where real automotive troubleshooting begins—hands-on testing.
Diagnostic Process
With no scan data to rely on, it was time to go straight to the circuit.
I removed the left rear door panel and peeled back the vapor barrier to access the window motor connector. This is where a lot of technicians either find the problem—or confirm the next step.
Using a Power Probe with the key in the ON position, I tested the connector while operating the window switch.
Here’s what I was looking for: voltage and polarity change.
When you press the window switch up or down, the system reverses polarity to the motor. That’s how it changes direction.
Sure enough, when I pressed the switch one way, I had power on one wire and ground on the other. When I reversed the switch, the polarity flipped exactly as it should.
That tells us something very important.
The switch is working.
The wiring is intact.
The circuit is doing exactly what it’s supposed to do.
At this point, the only component left in the equation is the motor itself.
Key Findings
We had confirmed proper voltage and ground at the motor connector, along with correct polarity switching.
There were no signs of wiring damage, no broken connections, and no control issues.
The system was delivering everything the motor needed to operate.
But the motor did nothing.
No noise. No attempt to move. No reaction at all.
Final Diagnosis
The driver-side rear window motor has failed and requires replacement.
This is what I would call a clean and conclusive diagnosis. No guessing, no parts swapping—just solid testing that leads directly to the fault.
Common Causes
When it comes to power window failures, there are a few common causes you’ll see over and over again.
Window motors wear out over time. Brushes fail, internal components degrade, and eventually, they just stop working.
Regulators can also bind or seize, putting excessive load on the motor and leading to premature failure.
Wiring issues are another possibility, especially in door jamb areas where harnesses flex constantly—but in this case, we ruled that out with testing.
Switch failures are common too, but again, polarity switching confirmed that wasn’t the issue here.
Lessons for Buyers / DIYers
This is a great example of why proper automotive troubleshooting matters—especially if you're buying a used vehicle.
A non-working window might seem minor during a quick inspection, but it can still cost time and money to fix. And if you don’t diagnose it correctly, you could easily replace the wrong part.
One of the best used car inspection tips I can give you is this: test every single function. Windows, locks, mirrors—everything. Small issues often point to larger patterns of neglect.
For DIYers, the takeaway is even more important.
Don’t guess.
Just because a window doesn’t work doesn’t automatically mean it’s the motor. You need to verify power, ground, and control before making that call.
In this case, the testing confirmed the motor was the failure. But skipping steps could have led to unnecessary parts replacement and frustration.
Take your time, follow the process, and let the vehicle tell you what’s wrong.
Don’t Get Burned on Your Next Used Car
If you’re thinking about buying a used car—or even if you already have one—this is exactly the kind of problem that can slip through the cracks and cost you big money later.
After 35+ years in the automotive field, I’ve seen firsthand how often people end up with vehicles that have hidden issues just like this.
That’s why I put together a simple Used Car Guide to help you understand what to look for and how to avoid making a costly mistake.
It’s a quick, practical guide designed to give you the right mindset and approach before you buy.
👉 https://stan.store/BobbyWhiteside
Affiliate Disclaimer
Disclaimer: Some links in this post may be affiliate links. I may earn a small commission at no extra cost to you. I only recommend tools I personally use and trust in real-world diagnostics.
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