How to Spot Problems with Your Honda CR-V ABS Speed Sensor
Like many of its contemporaries, your Honda CR-V has an anti-lock braking system (ABS) that helps you control the wheels to avoid skidding. This system has three main components: a controller, a couple of valves, and a speed sensor for each wheel. The sensors take note of whether your tires are rotating properly or not. When it senses that the wheels have suddenly stopped turning while the car is still moving, then the controller will tell the valves to release a little brake fluid so that the wheels can rotate again. But, this safety system isn't foolproof, and things can go wrong with its components. Here's how you can diagnose any issues with your Honda CR-V ABS speed sensor:
The ABS light
The first sign that you'll notice when something goes wrong will be a bright ABS light on your dashboard. This can indicate a lot of problems, but you will first need to make sure that it isn't just a glitch in the controller. Just turn your ignition off and then back on again. If the light does not go out, use a scanning tool to find out where the problem lies.
You might get a hint that there's a problem with your ABS speed sensors if your ABS lights come on after you drove over a rough road or through wet weather. But, the scanning tool will be able to find out what the actual problem is with your sensors.
The ABS speed sensors
Get your CR-V up on a couple of jack stands and remove one of your rear wheels so you can test its ABS speed sensor, which is located near the strut housing in the wheel well. Then, remove the sensor with a ratchet and examine its ends. There might be some fur-like contaminants disrupting your sensor, so you'll need to clean them off with some brake cleaner and a rag.
Afterwards, you'll need to check if your sensor still works by using a voltage meter. Make sure that you disconnect the engine harness from the sensor wiring harness beforehand. Then, just use the meter on both the input and output ends of the sensor. If the meter shows a reading of infinity ohms, then your sensor needs to be replaced. Meanwhile, if you get a reading of more than 5 volts, then your sensor is failing and it has to be replaced soon.