The Diagnostic port is not responsive of es 300 97
10

Asked by Ezard Dec 20, 2018 at 06:14 PM about the 1997 Lexus ES 300 FWD

Question type: Maintenance & Repair

I am not able to get a milewise device to work while plugged in the diagnostic port. Any ideas?

4 Answers
43,010

Hornet_2497 answered 5 years ago

Your car has three fuse boxes. Go to the fuse box under the dash on the driver's side near the steering column. Look near the center of the panel for fuse #33, it's rated 7.5 amps. Check to see if it has burned out. That powers your Onboard Diagnostics Module. Tell us what you find.

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43,010

Hornet_2497 answered 5 years ago

Your diagnostic scanner should light up when plugged in. To make it communicate with your OBD 2 system you must turn the ignition key to "On' but do not start the engine.

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Ezard answered 5 years ago

Thank you for your advice. I followed it and the port now works!

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Hornet_2497 answered 5 years ago

GuruBVB9....Thank you for the good news. I just love it when my info helps someone fix their vehicle. Many people trying to get their emissions test find the diagnostic port dead. This is a fairly common problem.

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