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Old 04-29-2013, 02:14 PM   #1
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02 ford focus Check engine read trick

Once upon a time i came across a post somewhere on the net of a method using a light pen(w/e they're called) to touch some wire under the hood, and the bulb will flash the engine codes.

I know some of you will say get a code reader but here in Canada they cost upwards of 300, and there no shop which reads them for free(60 bucks)

Plus i know i got a cat deficiency code that i have yet to replace the cat. But i have suspicions some other sensor has gone so hopefully someone here knows of this method to read the code and can share this knowledge, thanks guys


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Old 04-29-2013, 03:27 PM   #2
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Remember that from some pre-OBDII cars, some even had the test of that type built in under the hood.

For ours, the "ODO trick" can get you part way there (only gives code #'s).

It's detailed in the "stickies" at the top of this page, but basically all you have to do is hold the reset button while turning it on to get into a diagnostic mode. From there you can "toggle" through different functions by pressing the button repeatedly. This is often used to get numeric readings for temp, tach. etc.. it'll also give you any codes, then someone can help with what the numbers mean....

Luck!
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Old 04-29-2013, 03:27 PM   #3
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You beat me to it...............LOL.
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Old 04-29-2013, 04:20 PM   #4
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Quote:
Originally Posted by sailor View Post
Remember that from some pre-OBDII cars, some even had the test of that type built in under the hood.

For ours, the "ODO trick" can get you part way there (only gives code #'s).

It's detailed in the "stickies" at the top of this page, but basically all you have to do is hold the reset button while turning it on to get into a diagnostic mode. From there you can "toggle" through different functions by pressing the button repeatedly. This is often used to get numeric readings for temp, tach. etc.. it'll also give you any codes, then someone can help with what the numbers mean....

Luck!

this has been explored before, as I know for a fact one of the codes will read a cat malfunction. But on the odo codes doesn't show this at all. It has also been said that the odo has only basic codes and is not used for diagnostics but for use in testing from the dealership. The odo test mode does not give you engine trouble codes. Least not mine and according to other also.

Ill go try again tho and post anything i find.
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Old 04-29-2013, 10:33 PM   #5
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A good scanner will pick up 'pending' codes which don't trigger a CEL. PCM finds them but they are not flagged as hard faults yet. That's possible with many of them.
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Old 05-01-2013, 01:30 AM   #6
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Where are you in Canada? PartSource will scan your car for free and tell you the code and fix.

http://www.partsource.ca/store/canad...ive-stores.asp
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Old 05-01-2013, 02:13 AM   #7
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Where are you in Canada? PartSource will scan your car for free and tell you the code and fix.

http://www.partsource.ca/store/canad...ive-stores.asp

Im in Saskatoon Saskatchewan. the only thing part source is willing to scan is your car battery. they don't read engine codes.
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Old 05-01-2013, 02:40 AM   #8
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Does the ford focus Canadian not use OBD-II like the US versions?

I went on the canadian amazon (amazon.ca) and found my code reader:

http://www.amazon.ca/Professional-Di..._sim_sbs_ce_17

For some reason it only has 2 stars, but the US website is rated 4 stars Anyway, mine works great, it includes a book that list how to use it and all error codes...
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Old 05-01-2013, 06:14 AM   #9
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Princess Auto has a AutoLink AL419 OBDII scanner on right now for $80.

http://www.princessauto.com/pal/prod...-CAN-Scan-Tool

Plus there is a Princess Auto in Saskatoon.
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Old 05-03-2013, 12:19 AM   #10
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they've done it here before, (regina)

Sometimes Canadiantire has them on sale or you could check Cashopolis, the one here has some for cheap.
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