2020 Explorer Limited TPMS Fault

[Charles Voyles]

Out of the blue, our 2020 Limited started showing a Tire Pressure Monitor Fault and all 4 wheels reporting no data. I took it to Discount Tire and they put the TPM in learn mode and trained each sensor/tire. Their device read each tire and pressure and the car completed the training process but the fault remained. They tried this 3 times and I took it for a 15 minute drive but the fault is still there. Before I take it to Ford, I thought I’d check with this group. Has anyone run into this or something similar?

 

[peterk9]

Welcome to the Forum.
I wonder if perhaps for some reason the programming was deleted/lost. I did some searching and found this interesting info which I pulled from the article itself.

TPMS Programming vs. Relearning

Let’s save your shop some time and money and explore the important difference between programming a sensor and relearning a vehicle.

www.tirereview.com

Peter

 

[buzzard302]

When just one sensor fails, it is likely related to the sensor itself. Since all 4 are not registering, it seems logical that it is possibly related to the module. I doubt you are going to solve this one on your own. Perhaps try disconnecting the battery for a while and then re-connecting. Otherwise, the dealership will need to put your vehicle on their scanner and see what module is having an issue.

 

[Redneck0907]

Any updates on this? Mine is doing it for 3 sensors all started not sending at the same time

 

[themishmosh]

Any updates on this? Mine is doing it for 3 sensors all started not sending at the same time

It certainly is possible that 3 sensors died at the same. This fall, one of my stock sensors died. Early build 2020.

But check to see if there are any codes.

 

[hbalek]

It certainly is possible that 3 sensors died at the same. This fall, one of my stock sensors died. Early build 2020.

But check to see if there are any codes.

Mine's days are numbers I guess. I'm still on the original keyfob and TPMS batteries. The engine battery is now almost 4 years old and appears to be near its end too. I get "vehicle charging" frequently on the ASS display. I took delivery 12/4/19.

 

[Redneck0907]

It’s wacky because I would get a TPMS fault and then the sensors would display all the pressure fine.. I was thinking of doing a battery disconnect in the car and just clear everything and see if it’s maybe just the boot order of the modules are out of sequence maybe?? I don’t know why we even need this system in the first place… it’s the drivers responsibility to check to make sure their car is safe to drive before they drive it.. thanks Obama.. lol

 

[buzzard302]

In the past few weeks, I have replaced all four TPMS sensors on my 2020. It started with just one, so I replaced it. A week later, another one went offline. And then two weeks later, the last two went offline. All the sensor batteries are dying at the same time. If you guys are having one or a few sensors die, just replace all four. You won't have to deal with it again for another 5 years or more hopefully.

And my main battery just started showing signs of getting weak too. Replaced that with the H6 AGM from Walmart. Best deal in town for a battery, and it is absolutely identical to the Ford Motorcraft battery that was removed.

 

[peterk9]

Any updates on this? Mine is doing it for 3 sensors all started not sending at the same time

Being that it is a 2000 Explorer, the TPMS batteries are probably beginning to fail. If they've lasted for almost 25 years, you can't really complain.

Peter

 

[MNgopher]

... I don’t know why we even need this system in the first place… it’s the drivers responsibility to check to make sure their car is safe to drive before they drive it.. thanks Obama.. lol

Since this was passed into law in 2000 and signed by President Clinton, then required by the 2008 model year under the Bush administration, you are barking up the wrong tree.

You could cast your ire to Ford, who along with Firestone caused the Explorer Firestone tire fisaco by recommending 26 psi as the full inflation pressure on that generation of Ford Explorers...

 

[themishmosh]

In the past few weeks, I have replaced all four TPMS sensors on my 2020. It started with just one, so I replaced it. A week later, another one went offline. And then two weeks later, the last two went offline. All the sensor batteries are dying at the same time. If you guys are having one or a few sensors die, just replace all four. You won't have to deal with it again for another 5 years or more hopefully.

And my main battery just started showing signs of getting weak too. Replaced that with the H6 AGM from Walmart. Best deal in town for a battery, and it is absolutely identical to the Ford Motorcraft battery that was removed.

Did you need to have a shop rebalance the wheels/tires after replacing the TPMS sensors?

 

[buzzard302]

Did you need to have a shop rebalance the wheels/tires after replacing the TPMS sensors?

I have my own shop with a tire machine and balancer. You just break the bead, use the tire machine to push the tire down in the area of the sensor. Change the sensor, then re-inflate the tire. Since you are not changing the position of the tire on the wheel, there is no need to re-balance.

 

[Iain Hope]

Two just dropped out on my wife’s Explorer, so I guess the batteries are done.

Anyone know which Motorcraft TPMS sensors model number are stock (2020 limited with the 20” wheels if that matters). Also which “wake up tool” is used to get the new sensors out of shipping/hibernation mode? I have both ForScan and an Autel diagnostic tablet so can do the relearn myself.

 

[buzzard302]

Two just dropped out on my wife’s Explorer, so I guess the batteries are done.

Anyone know which Motorcraft TPMS sensors model number are stock (2020 limited with the 20” wheels if that matters). Also which “wake up tool” is used to get the new sensors out of shipping/hibernation mode? I have both ForScan and an Autel diagnostic tablet so can do the relearn myself.

You will need part number TPMS-60 for the sensors. Genuine ones are about 45 bucks each. Knock offs are about 40 bucks for a set of four.

And you will need the TPMS19 wake up tool. There are tons of Chinese knock off parts for these online. I chose to buy genuine Ford Motorcraft parts, but who knows if what I received was genuine or not. None the less, they activated fine and hopefully last another 5+ years.

You do not need Forscan or Autel tablet. Simply put the vehicle in TPMS relearn mode, and it will prompt to train each tire. Use the TPMS19 tool to train each tire in the order it tells you to do.

 

[themishmosh]

So not a week after replacing a failed TPMS sensor, i now get a TPMS system fault with no pressures showing.

These codes would not go away with Forscan resetting the BCM and I could not complete a relearn with TPMS19 tool. Key starts did not change things. The next day, the fault message is gone and all 4 pressures display. It returned after a short drive though. I also tried a battery disconnect and and on restart, the fault message is gone and i once again have 4 pressures. A couple of drives later, the same faults appear. I will have to look at the service manual to see what the likely issue is. Seems like the sensors are fine by the radio signals are not being received properly or maybe a TPMS receiver module if there is one.

Update: TPMS sensor radio signals are received by the RTM (remote transceiver module) which then gives the info to the BCM directly.

Ford Explorer - Tire Pressure Monitoring System (TPMS) - Suspension

My next move is to replace the other 3 original TPMS sensors. I've read the B1182 code will come up if the system tries to relearn the sensors and one of them fails--it will not be able to complete the relearn and B1182 comes up.

 

[buzzard302]

So not a week after replacing a failed TPMS sensor, i now get a TPMS system fault with no pressures showing.

View attachment 462924

These codes would not go away with Forscan resetting the BCM and I could not complete a relearn with TPMS19 tool. Key starts did not change things. The next day, the fault message is gone and all 4 pressures display. It returned after a short drive though. I also tried a battery disconnect and and on restart, the fault message is gone and i once again have 4 pressures. A couple of drives later, the same faults appear. I will have to look at the service manual to see what the likely issue is. Seems like the sensors are fine by the radio signals are not being received properly or maybe a TPMS receiver module if there is one.

Update: TPMS sensor radio signals are received by the RTM (remote transceiver module) which then gives the info to the BCM directly.

Ford Explorer - Tire Pressure Monitoring System (TPMS) - Suspension

My next move is to replace the other 3 original TPMS sensors. I've read the B1182 code will come up if the system tries to relearn the sensors and one of them fails--it will not be able to complete the relearn and B1182 comes up.

Ugh, that looks annoying. I can tell you all of my sensors died almost at the same time. So I agree, replace all sensors, initiate relearn and try to use the TPMS19 to re-pair all 4 new sensors at once. That's basically what I ended up doing.

 

[peterk9]

Ugh, that looks annoying. I can tell you all of my sensors died almost at the same time. So I agree, replace all sensors, initiate relearn and try to use the TPMS19 to re-pair all 4 new sensors at once. That's basically what I ended up doing.

Good morning. Would it not have been less expensive to change the batteries in the sensors? That way I don't believe you have to go through the relearn step. Just wondering since I've never had a TPMS failure.

Peter

 

[buzzard302]

Good morning. Would it not have been less expensive to change the batteries in the sensors? That way I don't believe you have to go through the relearn step. Just wondering since I've never had a TPMS failure.

Peter

Hi Peter, the batteries are sealed within the sensor, and not serviceable. Proper procedure is to replace the sensor.

 

[peterk9]

Hi Peter, the batteries are sealed within the sensor, and not serviceable. Proper procedure is to replace the sensor.

Thanks for the info. I did an Internet search before I initially replied and came across several articles indicating the batteries were replaceable. Perhaps it depends on the type of TPMS sensor.

Peter

 

[themishmosh]

Update: I DIY replaced the TPMS sensor in the LF wheel that happened to be one in which the TPMS19 tool could not activate. Didn't have time for the other two originals but those made a honk when using the TPMS19 when trying to relearn, so I'm assuming they still have decent battery life. In any case, error messages are gone and 4 pressure readings are back. Bottom line, B1182 TPMS system failure code could just mean at least one of your sensors are out and the relearn process could not complete.

Update2: A few days later, same TPMS system area. I suspected all the original TPMS sensors were dying at roughly the same time. Replaced the remaining two so that now all 4 are new. Cleared the codes. Have all 4 pressures up. I tried manually relearning with the TPMS19 tool and all 4 new TPMS sensors activated and relearn process was completed.

I suspect we will start seeing quite a few 2020's report TPMS issues as these sensors really don't last much past 5 years.