confusing tpms issue

[HACK BLOCK]

2011 yukon denali. was driving last week and got a flashing tpms light with a service tpms message. going through the DIC and saw my FR tire wasn't reading, turn the truck on and off and message went away and was reading the pressure again. this happened about 2 more times then over the weekend my RR tire was reading low. went to check the pressure and it was fine. check the rest and the FR and it was low. so that means the DIC has the front and rear pressure readings mixed up now. I scanned the truck with my tech 2 and came up with an "unknown code" c0755 right front low tire pressure sensor and c0760 left rear low tire pressure sensor. just wanna see what everyone thinks about this

 

[gooffeyguy]

Those two tpms sensors are malfunctioning, probably due to a low battery. Best to replace all four and do a relearn

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[Doubeleive]

most likely cause is low battery power on the tpms sensors there good for about 10 years so you may be due, I am probably going to be in the same boat soon on my 2012.

 

[HACK BLOCK]

what's a decent price for sensors?

 

[TJ Baker]

My 2005 sensors have occasionally been seen absent by the system,,, but they have always come back in short order.

I recently was unable to to get the position relearn to successfully complete though. Luckily I had access to the sensor ID numbers and was able to use one of my ELM327s and a serial terminal app to do a block memory write putting the ID numbers in the right places and got it done. I will likely save a few macros to use when I rotate the wheels/tires, far easier than the damned relearn process.

 

[Doubeleive]

what's a decent price for sensors?

place by me charges $50 each installed (not oem) but they work fine I have had them put on 3 different vehicles never had a problem, he tries to fish me for $85 each but I'm part jewish

 

[HACK BLOCK]

place by me charges $50 each installed (not oem) but they work fine I have had them put on 3 different vehicles never had a problem, he tries to fish me for $85 each but I'm part jewish

the Jewish part of me is gonna wait till I absolutely need it lol

 

[89Suburban]

I put these in about 6 weeks ago. So far so good.

https://www.amazon.com/gp/product/B07YYV2D3M/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1