ABS/DTSC/City safety service required

[Seanl82]

Testing is very easy and you don't need an oscilloscope. A simple multimeter measuring resistance (ohms) is all that's required.
Simply disconnect the sensor and measure the resistance between the two lines of the sensor. I'm not entirely sure what it should be on these, but for comparison, VW ones are between 1.2-1.3 kOhms. If you test all four, you'll know which is at fault but if one is OL or mega high (MOhms) or swinging between the two, that's your problem. Generally very easy to replace by yourself. The city safe error message is another problem though. If the code is stored it'll need resetting to remove the message. That's where you'll need VIDA to do so.