Scraped Bumper, Broken Wire

A Honda Accord came into the shop with only a few thousand miles on it and a check engine light. It had a code for no signal from the radiator coolant temperature sensor, so I got started on electrical diagnostics.

Following the Honda diagnostic tree, I checked to see whether the sensor was getting a signal and had a good ground, and after a little while determined that one of the wires must be broken. Trying to find a broken wire in the mass of wiring harnesses in modern cars sounds like a nightmare, but I got very lucky and found it quickly.

I found that the owner had hit something in the road with the front of the car, and besides damaging the bumper and undershields just a little bit, it actually damaged the front wiring harness as well, breaking the wire for the radiator coolant temperature sensor. On a nearly-new car, I wouldn’t want to try to repair a broken sensor wire like this unless I absolutely had to, so a new harness was the repair needed. Fortunately for the customer, this didn’t need the entire engine bay harness, just a small front end harness that wasn’t too expensive. All I needed to do was remove the front bumper to replace it.

New blog post or video every Monday, plus pictures throughout the week on Facebook, Twitter, and Instagram!

Watch Mechanical Malarkey on YouTube!

Mechanical Malarkey T-shirts, hats, and stickers are available to order!


This entry was posted in In The Shop and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s