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Circuits

Hi there. A problem with the knock sensor or knock sensor circuit can definitely make starting a vehicle more difficult. A knock sensor is used by engineers to help the engine's computer sense possible internal engine failure before it becomes...

Remove the negative battery cable from the battery. Get a digital meter and check the voltage from the battery terminal and the battery cable without having the cable touching the terminal. If there is something on in the vehicle with...

You definitely want to start by inspecting the front and rear wheel speed sensors; a failure in these circuits will result in several other problems. Begin by connecting a scanner to see if the Powertrain Control Module (PCM) is registering...

I would recommend having the battery tested along with the voltage regulator. When the voltage regulator does not regulate amperage correctly to the accessories (i.e. gauges, etc.), this can cause problems with accuracy and allowing them to read correctly. I...

The first thing you want to do is, whenever your dimmer switches, check that. A lot of times, dimmer switches burn out and they will do exactly that. You want to pray it's that, because if it's not that, you...

Most vehicle manufacturers are very particular about most of their components, but when it comes to supplemental restraint systems (SRSs), such as air bags, pretensioners, and so on, they are most particular. While it has been some time since I've...

Sometimes, there is just enough corrosion on the end of the bulb to trigger this warning despite the bulbs illuminating correctly. Using some emory cloth or very fine sandpaper, rub the contact end of each of the brake bulbs to...

The sensor for a passenger sitting in this seat is a common failure item yes. The unit is pretty expensive and the fabric of the seat cushion must be removed to access and replace this component unless a new and...

Hello. There are a couple of reasons that would cause the fuel gauge to stop working. The most common reason is that the fuel level sending unit has failed (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-gauge-sender) and is not accurately reading the fuel level. The fuel...

The first thing you want to do is have a certified mechanic unplug the main computer and test the wires coming out of it. Either the wiring is bad, or the computer's connectors have a little condensation and corrosion, which...