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TPMS Honda Warning

5K views 4 replies 4 participants last post by  xridgelinex 
#1 ·
The following article was published in the July, 2007 issue of Honda Service News:

[FONT=Helvetica,Bold]
Normal Tire Pressure Loss​
[/FONT][FONT=Helvetica,BoldItalic]
Isn’t​
[/FONT][FONT=Helvetica,Bold]a Warranty Repair

[/FONT][FONT=Helvetica,Bold]
Currently Applies To:​
[/FONT]All models with TPMS
Got a vehicle in your shop because the low tire
pressure indicator is on or has been coming on
intermittently? Before you start any sort of
troubleshooting, keep in mind that the low tire
pressure indicator is like the “low fuel indicator” for
the tires. It comes on only if the tire pressure drops
below a certain threshold. It’s not saying there’s a
problem with the TPMS, so there’s no need for heavy
troubleshooting yet.

To make things right, first check the tire pressures. If
they’re lower than the recommended cold inflation
values listed on the driver’s doorjamb sticker, inflate
the tires to their proper pressures. If the low tire
pressure indicator stays on after you’ve done that,
drive the vehicle​
[FONT=Helvetica,Bold]over 30 mph
for about [FONT=Helvetica,Bold]1 minute[/FONT]
the indicator should go out. If it goes out, you’re done
with this repair. If it stays on—or if you suspect
there’s a leak—then it’s time to start troubleshooting.
And although one or more of the low tire pressure
TPMS DTCs (11, 13, 15, or 17) will have been set in
the TPMS control unit, don’t bother clearing them—
they just stay in memory.
What’s really important to remember here is that
unless the tire pressure loss was due to an actual
manufacturer defect, it
[FONT=Helvetica,Bold]isn’t [/FONT]covered by warranty.
That means inflating the tires to turn off the low tire
pressure indicator
[FONT=Helvetica,Bold]isn’t [/FONT]a warranty repair.

[/FONT]
 
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#3 ·
This looks like as good an opportunity as any to revive a question from another thread. How does the TPMS actually work? I have noticed that running my laptop DC-DC converter will cause the TPMS indicator to come on. Not the specific low tire indicator but just the TPMS check light. When I unplug the converter, the TPMS light goes out.

Is it possible that the converter is causing RF interference with the TPMS unit or something like that? Would THAT be a warranty issue? :D
 
#4 ·
I bet that it is but I don't think that it would be a warranty issue. Just look at all the stuff that runs in the 2.4 Ghz range. I have a cordless phone that gets interference from an intercom system that gets interference from my leapfrog audio/video thingamabob. My microwave oven screws em' all up. All I need is a baby monitor to complete the circle of static.
 
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