Tag Archives: Diagnosis

The Wrong Way To Wire Accessories

A Honda Civic came in with complaints of some strange electrical problems. The first step after checking for diagnostic codes was to check for any aftermarket add-ons, because if poorly installed, they can mess with the systems on the car. … Continue reading

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My Truck: Brake Light Switch Wiring

As I’ve mentioned in a previous post, my 1990 Ford F-250 has had its wiring hacked together by previous owners. Recently this came to light again as my brake lights stopped working.

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Dead Engine Autopsy

We recently had a Civic in the shop with zero oil pressure. The oil was full, but while running there was no oil coming out of the oil filter or pressure gauge port. That meant that it needed a new … Continue reading

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It May Look Like A Walnut

And it is a walnut. But walnuts have caused a surprising number of problems in cars compared to other plant material.

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OBD Port Not Working? Check The Fuses

If you ever plug a scanner into the OBD-II port on a car and it doesn’t turn on or can’t connect, chances are it’s just a blown fuse, as they often share with some other circuit.

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2001 CR-V Transmission, Speedometer, & Alternator Problem

I’ve learned a lesson about diagnosing strange problems. When doing electrical diagnosis you should always check fuses early on, but I’ve now learned that you should also check fuses if you have a strange problem, even if it doesn’t seem … Continue reading

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OBD-II Connector Location

Every car sold in the US since 1996 is required to be equipped with an OBD-II connector so all scan tools, and in some cases state inspection computers, can connect to them and read data. There are general requirements for … Continue reading

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