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TPMS
Hello everyone.
I have a 2010 Nissan Rogue with over 200k miles on it. It has been a great car for my family and I. Recently, out of the blue, the tire pressure warning light came on. When I start the car, it begins to flash and then stays solid the remainder of the drive. I have aired down and aired back up all of my tires. They are currently at 35 PSI. I saw a youtube video where the guy grounds out a small test plug from under the dash but for the life of me, I have not been able to locate said plug. I realize that the batteries in one of the tire sensors may be dead and this could be the problem but would like to be able to trace down the defective sensor if that is the cause. I would appreciate any advice. Thank you in advance. |
#2
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Read the manual, your battery in one or more tires is dead.
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#3
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The TPMS sensor batteries typically last 6-7 years on average. If your TPMS sensors are original to the vehicle, don't waste your time trying to locate one bad sensor because the others will likely fail in the near future. The best thing to do is to replace all four the next time you replace your set of tires. TPMS.com is a good place to pick up a new set of sensors; Rockauto.com is not bad, either. Schrader makes the Nissan OE sensors. The TPMS diagnostic connector which you are referring to should be on the same harness that goes to the OBD II diagnostic connector under the driver's side of the dash. It'll be a white, 2-pin connector with one wire. Follow the harness back from the OBD II diagnostic connector and you should find the TPMS diagnostic connector taped up (usually with blue electrical tape). FYI, unless you had the TPMS sensors re-registered every time you rotated the tires, grounding the connector to get TPMS codes isn't going to help you located the bad sensor. When the sensors are ID registered, they go in the order of LF, RF, RR, LR. If you rotate the tires front to back and don't re-register the sensors, the tire that is registered as the LF tire to the BCM will now be at the LR. The BCM can't tell where the tire is, only where the tire was when it was registered. Very few people or shops actually go to the trouble of re-registering the TPMS sensors when they rotate the tires, but they are supposed to do so.
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