bloc
SILVER Star
VW uses Huf sensors and gets similar lifespan out of them as toyota does with Denso/pacific. Those are a different frequency though.. not sure if that plays into anything.
TPMS sensors - OEM or OES? (2 Viewers)
- Thread starter tominboise
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I was curious on this. I have free calling to Japan, so I called Pacific. The guy I spoke with was confused when I asked about a tool to activate or wake the sensors. He said there is no special tool needed to bring out of hibernation. He told me that the sensors activate by inflating the tire. He stated that I should first try just installing and inflating to to see if that brings the sensors out of hibernation. He said if pressurizing does not work, to deflate by 20psi. Which makes sense as Techstream or Carista can be used to pair these to your car. All Techstream/Carista does is inputs the TPMS ID #s to the ECM, and it has no communication with the TPMS itself.
I see that the reviews on Amazon are a mix bag with many reviewers saying their sensors are DOA. Pacific/Denso should put in instructions with the procedure to bring out of hibernation. My guess is that many of the bad sensors were just not activated properly.
FWIW, the new Denso/Pacific sensors I purchased only required inflation to activate at my local Discount.
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Very interesting. I did not install the sensors so obviously did not activate them by pressurizing.
And, true, previously I had them installed first, only then "triggered" them with my tool.
I was concerned because the place I bought them from (tpms.com) included this warning that "Q3 2018" update from Toyota required for tools to recognize them.
And, true, previously I had them installed first, only then "triggered" them with my tool.
I was concerned because the place I bought them from (tpms.com) included this warning that "Q3 2018" update from Toyota required for tools to recognize them.
Well, bringing out of hibernation is different from getting a TPMS tool to read them. If you have the sensor IDs, and they are compatible, the truck should read detect them if the TPMS sensor IDs are input into the ECM. I imagine that there are certain TPMS tools that won't read newer sensors without a firmware update.
bloc
SILVER Star
What doesn’t help is Denso’s TPMS literature says they need to be “triggered” by a trigger tool prior to any transmitting. I now assume they make sensors other than the rebranded pacific units and that ours aren’t included in this procedure.
Finally getting to the bottom of it.
Still going to swing by discount to see whether their unit will read them. As mentioned in the other thread I think they are so used to people using clone sensors that anything else throws them off. Or certain locations anyway.
Finally getting to the bottom of it.
Still going to swing by discount to see whether their unit will read them. As mentioned in the other thread I think they are so used to people using clone sensors that anything else throws them off. Or certain locations anyway.
The video linked below says waking up depends on the sensor. It may be done via tool or inflation, depending on the sensor.
www.tomorrowstechnician.com
VIDEO: Waking Up A TPMS Sensor -
Andrew Markel discusses a procedure to "wake up" a brand new TPMS sensor and how it can often be mistaken as a malfunction.
www.tomorrowstechnician.com
cruiser100
Comfortably Numb
It was a black handheld device that both scanned the sensors and hooked up to the OBD to register them; didn't get the model details.
They had no problems with the Densos. and they did NOT need to be activated prior to the tires being installed. The tech scanned them to get the codes so he could register them.
Here we are again. I just put 5 new Denso 550-0103 sensors from Amazon, and my tire guy cannot find any signal coming from them. He used some model of Autel unit as well as some $5000 SnapOn unit. Sorry, don't know the exact models.
I have tried deflating by 20 lbs, then reinflating, then driving over 40 mph for about 10 miles. Nothing. I have the Carista module and app, and can program the LC (2017) to recognize my new TPMS ids, but since they're not putting out any type of signal, the truck won't recognize them.
Any suggestions other than going to the dealer?
Has anyone been able to confirm that there's anything special that needs to be done to wake them up? Do they need any type of signal to wake up?
I have tried deflating by 20 lbs, then reinflating, then driving over 40 mph for about 10 miles. Nothing. I have the Carista module and app, and can program the LC (2017) to recognize my new TPMS ids, but since they're not putting out any type of signal, the truck won't recognize them.
Any suggestions other than going to the dealer?
Has anyone been able to confirm that there's anything special that needs to be done to wake them up? Do they need any type of signal to wake up?
bloc
SILVER Star
Do you have access to your old sensors to get the part numbers off them?
Recently I had 18 inch TRD Wheels installed on my 2009 LX570. 4 WHEELS CAME WITH MICHELIN LTX AT2S and TOYOTA TPMS sensors. But the spare I got had aftermarket TPMS - Autel sensor ..I had the wheels and tires installed by an auto service shop. when I drove home my LX570, it took 5 minutes+ or so to check/report the tire pressure. But next day I started getting TPMS error. A day later after a 300 mile drive, sensors showed the pressure after reaching home. Next day again TPMS error. But before getting the error I see a successful read out from the 4 OEM sensors and the spare did not report the pressure, throwing the entire TPMS into failure state. Any clues? Should I take my LX to dealer to program my TPMS? Toyota or Lexus dealer?
gaijin
GOLD Star
Is there any chance your TPMS system is reading your old wheels/tires instead of your new wheels/tires? When you drove home from the "auto service shop" did you have your old wheels/tires in the truck? When home, are your old wheels/tires stored near your truck?
As I understand it, the 18" TRD wheels were originally on Tundras and the Tundra TPMS sensor is not compatible with LX/LC vehicles.
If you change the air pressure of one of the new TRD wheels mounted on your LX570, is the new pressure reflected in the onboard display?
Just some thoughts.
HTH
Denso 550-0103 is PMV-C107J which is wrong for you. MY2016-MY2019 is 42607-48010, PMV-C015 or DENSO 5500106. Make sure you get the 20 degrees as PMV-C015 have many different variants. AFAIK, only the 35D7 is 40 degrees. My MY2019 came with 13D7. (Last 4 digits of the numbers above the TPMS sensor ID).
Look at post #4 here: Tacomaworld
@gaijin,
I never thought about it. Yes, I have my old tires sitting in the garage. When my car read tire pressure only in two occasions, - once while it was at the shop (old tires were sitting inside my car) and the second time when I returned home after the trip. And the car is parked one car away from the old set of stock wheels/tires in the garage. I never knew that TPMS sensors are that powerful ( better than my wireless router ).
Now I am.not sure whether sensors ever worked at all. All the time my LX570 might be showing tire pressure from the old set of wheels/tires? Auto shop charged me extra money for programming sensors while they may not have done anything at all ...
I thought Toyota and Lexus would share TPMS sensors but I might be ignorant. Should I order new sensors from Lexus? Or should I take the car to Lexus dealer to program the Toyota OEM sensors for LX570?
Your insight greatly appreciated! Thanks.
Sorry, I should have been clearer. I should have mentioned that I mounted the 5 Denso 550-0103 into a set of Rock Warriors. Are you saying that the Denso 550-0103 won't work with the 2017, or that the Denso 550-0103 won't work with the stock wheels? From what I've been able to determine, the Denso 550-0103 is correct for the Rock Warriors.
In any case, shouldn't some type of signal be detectable from the sensors using a TPMS sensor tool? It seems as though they have not been "activated" bc they are not sending any type of signal that's detectable.
Denso 550-0103 is not compatible with 2016-2019 LC. You need 42607-48010, PMV-C015 or DENSO 550-0106 which is 20 degrees that works with RW.
Thank you! Somehow managed to miss that 2016-2019 is a different part number. Looks like I'll be buying some new sensors! I still can't figure out why it doesn't appear that the sensors are sending out any signal at all.
Anyone interested in a brand new set of 5 x Denso 550-0103? You only pay if you can get them working!
gaijin
GOLD Star
I think your first option would be to return to the "auto shop" that charged you extra to make the sensors work - just make sure you go in there with the TPMS warning showing on your dash. This would mean driving about 15 minutes or so outside the range of your old tires. Just tell them the TPMS is not working, fix it.
My suspicion is they will not be able to get the Tundra sensors to work with your LX570. They should refund you whatever they charged you before to "fix" your sensors.
Toyota sensors cannot be re-programmed. Your LX can be programmed to recognize new sensors, but the sensors must be compatible. I suspect your sensors are not compatible and you need new sensors.
The easiest, but most expensive, way to fix your problem would be to go to your Lexus dealer and purchase 5 new sensors - possibly only 4 sensors if the Autel sensor you have can be re-programmed. Have the dealer replace the sensors in your new wheels and program your LX to recognize the new sensors.
Other options would be to purchase 4 (or 5) new aftermarket sensors, have them installed in your new tires, and then program your LX to recognize those sensors. This may or may not be within your comfort zone. There are several threads/posts about what this involves.
HTH
