dmrose76

Installed new Hawk Ceramic pads on all four corners of my 997.1. Installed new non-Porsche warning sensors. Reputable brand. Thought I had everything installed correctly but getting brake pad warning error message on PCM. I’ll be pulling all the wheels and seeing if I can spot a broken sensor/wire or the like. If not, I might just clip them all and disable.

Just wondering if anybody has other suggestions on what else I should check or do. Is there a test I can do on each sensor to see which might be causing the alert?

Much thanks.

Wayne Smith

First ... There's no such thing as a good connection. Go back and unplug and plug in each connector several times so the sliding action on the pins will clean the contacts.

dmrose76

Wayne, you are suggesting the actual plastic pugs and not the sensors down on the pads, correct?

Petza914

Better yet, when you get them apart, spray the car side contacts with Deoxit 100 spray.

Dk27

If you have a multimeter you can set it to continuity and check that the new sensors have continuity across them at the connector. Insert a prob and each side. That will narrow down the issue to the connection or the new sensor.

Wayne Smith

Yes. Also see posts between your question and here for good advice.

It was my father-in-law who stressed the "No such thing as a good connection" mantra. And he was right. Often, even if you find a component failure, the problem started with a poor connection causing out of tolerance voltage or current conditions.

This concept goes beyond electrical problems. It can also be applied to mechanical parts.

My other mantra is actually a question ... What does an over lubricated bearing (or chain) look like?

Good luck troubleshooting and please report back.

dmrose76

Problem solved - rookie mistake. One of the sensors was't pushed in completely into the connector. Did heed Wayne and Petza914's advice while I had the wheels off checking and sprayed contact cleaner into each connector, let it sit awhile, used compressed air to blow out any residue and then plugged/unplugged the connector a couple of times to ensure clean pins.

Thanks for the good help.