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TPS Re-learn Help

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Old Aug 22, 2006 | 10:58 PM
  #1  
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Default TPS Re-learn Help

I just bought a set of 02 thin spokes from PrimeC5. "Great guy by the way and would do business with him again anytime." When he took the rims off his 02 a few months ago he said the sensors worked just fine. I start the re-learn procedure and put a magnet over the left front "driver" tire and after about 5-8 seconds I get a horn. But when I go to the passenger tire I get nothing. In fact I can only get the front driver to give me the horn even when trying to designate another tire as the FL tire. I tried all the tires and the only one I could get to work it the FL. I doubt of 3 out of 4 sensors went bad in a few months and they are 02 units and mine is an 01.

Little help please
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Old Aug 23, 2006 | 12:32 AM
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Well the obvious question I had was compatibility - but you shouldn't have any issue with TPS from an '02 working on an '01. Obviously the magnet is powerful enough - otherwise it would not have worked for the one.

You might consider taking it the dealer and letting them use their reset tool, and see if they can get them to work.

I agree - I doubt that the sensors are bad - the newer style ones (like yours) should last a good long time, since they don't broadcast all the time like the older style (like mine) did.

Good luck....
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Old Aug 23, 2006 | 10:42 AM
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ttt
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Old Aug 23, 2006 | 11:17 AM
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Try using two magnets.

Be SURE to move the magnets around the full area of the valve stem.
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Old Aug 23, 2006 | 04:18 PM
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Here's some more information that I just came across.....

1997-2001: Service Bulletin: Info - Wheel Pressure Sensors Unable to be Reprogrammed after Tire Replacement
Source: Chevrolet Dealer Service Bulletin
Number: 00-03-10-005
Subject: Info - Wheel Pressure Sensors Unable to be Reprogrammed after Tire Replacement
Model Year: 1997-2001

Some dealers may find it difficult to reprogram the wheel mounted air pressure sensors on vehicles which have replacement tires installed. If this is the case, verify the brand and model of the tires. One tire that is known to cause this condition is the Goodyear® Eagle™ F-1. The Goodyear® Eagle™ F-1 uses a unique "all-steel" case construction. The sidewall reinforcement, as well as the tread belts, are made from a woven steel strand material. The presence of this material may cause degradation of the signals generated by the wheel mounted sensors. Original Equipment Manufacturer (OEM) replacement tires must have Goodyear® Eagle™ F-1 GS EMT molded into the sidewall of the tire. If the tire does not have the GS designation, it is an all steel construction Goodyear® Eagle™ F-1 tire.

This type of interference may not be limited to the Goodyear® Eagle™ F-1 tire. As other manufacturers produce replacements for the Corvette, the individual peculiarities of those tires cannot be predicted. Using OEM replacement tires as identified above is the customer's best assurance of trouble free performance.

What to Advise the Customer
If an inspection of the wheel mounted sensor reveals no visible damage caused by improper installation of the tires, you should recommend that the customer install OEM tires to correct this condition. Further point out to the customer that the current aftermarket tires do not afford the run-flat feature of the original equipment tires. As the Corvette is not fitted with a spare tire, this could be a serious inconvenience to the customer.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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Old Aug 23, 2006 | 04:27 PM
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Will removing the sensors from my '98 C5's OEM 'wagon' wheels work if I have them installed in a set of '01 C5 OEM '5-spoke' wheels which I have purchased for my '98 C5...thanks?
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Old Aug 23, 2006 | 04:36 PM
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Originally Posted by Mr.DJ
Will removing the sensors from my '98 C5's OEM 'wagon' wheels work if I have them installed in a set of '01 C5 OEM '5-spoke' wheels which I have purchased for my '98 C5...thanks?
It should work - but be aware that, as indicated above, the older style sensors broadcast continously, so are prone to dead/dying batteries.

The new style sensors are not compatible with your '98.
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Old Aug 23, 2006 | 04:47 PM
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Originally Posted by HummelS
It should work - but be aware that, as indicated above, the older style sensors broadcast continously, so are prone to dead/dying batteries.

The new style sensors are not compatible with your '98.
That's great to hear...especially since the wheels are coming without their sensors. I'll have my local Goodyear dealer do the dismounts/mounts along with the new install of my old sensors...hopefully the batteries are fairly fresh. Thanks for the quick response.
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Old Aug 23, 2006 | 04:54 PM
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Originally Posted by Mr.DJ
That's great to hear...especially since the wheels are coming without their sensors. I'll have my local Goodyear dealer do the dismounts/mounts along with the new install of my old sensors...hopefully the batteries are fairly fresh. Thanks for the quick response.
Batteries are not really changeable (at least they weren't designed to be changeable or serviceable). Some members have had some limited success chipping away the epoxy and de-soldering the batteries, then soldering new ones, and reapplying some kind of epoxy. There was a vendor that was also doing this, but I believe he is not in business any longer.

Your only real alternative is to buy new sensors. The Gen I sensors typically last about 8 years (which is pretty damn good when you consider the environment they live in). I had one fail last year - and I decided to bite the bullet and buy four new ones.
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Old Aug 23, 2006 | 06:13 PM
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What I would like to know is where this notion that the "earlier" or "first gen" TPMs "broadcast" all the time came from? They don't. Wheel rotation is what activates them to transmit.
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Old Aug 23, 2006 | 06:51 PM
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I had the same prob....
Solution for me when I got to the 3 flat tires message was to take the car for a ride about a 1/4 mile and walla the sensors reset themselves...
Try it bro

J

Last edited by mogreenn; Aug 23, 2006 at 06:55 PM.
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Old Aug 23, 2006 | 06:54 PM
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Default Problem Solved

Hey guys I got it to work. I just went to Home Depot and got two large bar mags and they work great.

Thanks

-Alex
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