TPMS only reading 15lbs... Help please...

[NathanJax]

Well, since I bought my Escalade the TPMS light has been on. We've (Father and I and my fathers a mechanic) tried resetting all the sensors. We heard the horn honk and all was well. However. the light came right back on. We hooked it up to a scanner, and the scanner sees all 4 sensors (even gives us their serial numbers), but it shows on 15lbs in each wheel, no matter how much pressure is in the tire. We tried raising and lowering the pressure and it still read 15lbs.

Can the sensors be reset? Are they just bad and need to all be replaced?


Any help anyone can give would be greatly appreciated.


Nathan

 

[Anthony]

The two rear ride control arms could of come off, their clips and just needed to be snapped into place. Those arms tell the compressor how much air to put in out and are located on the right side of the wheel well I would check to see that those are connected because its in easy fix with some pliers just pop them back on.

 

[OKLAGMCRUISER]

The two rear ride control arms could of come off, their clips and just needed to be snapped into place. Those arms tell the compressor how much air to put in out and are located on the right side of the wheel well I would check to see that those are connected because its in easy fix with some pliers just pop them back on.

the tpms are installed in the wheels....they don't have anything to do with the ride control system...fyi.

I had a TPMS that would read erratic. I just bit the bullet and had a new one installed and all is good. The shop could read/scan it without any issues, but it just wouldn't read the right pressure. Found out the previous owner had used a can of fix o flat in that wheel and that was what clogged the TPMS.

Pat

 

[BlackDenali]

TPMS Sensors are GIANT pieces of shit! IMHO! I stopped trying to fix mine after my truck was in and out of the wheel and tire shop 5 times in one month and one of the mechanics dropped one of my rims and put 2 huge dents in the lip! $550 dollar **** Up! Never again will i mess with TPMS! I just removed the light bulb from the dash board!!! My .02!

 

[OKLAGMCRUISER]

TPMS Sensors are GIANT pieces of shit! IMHO! I stopped trying to fix mine after my truck was in and out of the wheel and tire shop 5 times in one month and one of the mechanics dropped one of my rims and put 2 huge dents in the lip! $550 dollar **** Up! Never again will i mess with TPMS! I just removed the light bulb from the dash board!!! My .02!

With DIC it's not that simple...

 

[BlackDenali]

With DIC it's not that simple...

Whats DIC??

 

[Modded]

Its the Driver information center, on newer models it reads and displays a light. So if you pull the light bulb, the other will still be there.
TPMS may be a pain but itd really conveniant.

 

[BlackDenali]

I have an '04 denali and my tire pressure light doesn't come on at all...only the "check tire pressure" warning when I start the truck!

 

[Modded]

Oh then you have DIC, its what mine does too;

 

[NathanJax]

I click the message off of the DIC everytime I get in the truck, but the warning light stays on. I guess I'll have to get a new sensor and see if that solves the problem. If so, guess I'll have to swap out all 4

just weird that all 4 could be bad...

 

[nc6600]

I put the oem 20's on my truck and the light stays on i just try not to look at it.

 

[MikeTheApeman]

Can the sensors be reset?

Found this in my manual:
TPM Sensor Identification Codes

Each TPM sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPM sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire's air pressure. The sensors are matched to the tire/wheel positions in the following order: left front (LF), right front (RF), right rear (RR) and left rear (LR).

You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions the matching process stops and you will need to start over.

The TPM sensor matching process is outlined below:

1. Set the Parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Turn the exterior lamp switch from "Off" to "On" four times within 3 seconds. A double horn chirp will sound and the TPM low tire warning light will begin to flash. The double horn chirp and flashing TPM warning light indicate that the TPM matching process has started. The TPM warning light should continue flashing throughout the matching procedure. The SERVICE TIRE MONITOR message will be displayed on the Driver Information Center (DIC).
4. Start with the left (driver's side) front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPM sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with step number one. To let air-pressure out of a tire you can use the pointy end of the valve cap, a pencil-style air pressure gage or a key.
6. Proceed to the right (passenger's side) front tire, and repeat the procedure in Step 5.
7. Proceed to the right (passenger's side) rear tire, and repeat the procedure in Step 5.
8. Proceed to the left (driver's side) rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPM warning light is still flashing. If yes, turn the ignition switch to OFF.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label.
11. Put the valve caps back on the valve stems

 

[OKLAGMCRUISER]

Found this in my manual:
TPM Sensor Identification Codes

Each TPM sensor has a unique identification code. Any time you rotate your vehicle's tires or replace one or more of the TPM sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire's air pressure. The sensors are matched to the tire/wheel positions in the following order: left front (LF), right front (RF), right rear (RR) and left rear (LR).

You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions the matching process stops and you will need to start over.

The TPM sensor matching process is outlined below:

1. Set the Parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Turn the exterior lamp switch from "Off" to "On" four times within 3 seconds. A double horn chirp will sound and the TPM low tire warning light will begin to flash. The double horn chirp and flashing TPM warning light indicate that the TPM matching process has started. The TPM warning light should continue flashing throughout the matching procedure. The SERVICE TIRE MONITOR message will be displayed on the Driver Information Center (DIC).
4. Start with the left (driver's side) front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPM sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with step number one. To let air-pressure out of a tire you can use the pointy end of the valve cap, a pencil-style air pressure gage or a key.
6. Proceed to the right (passenger's side) front tire, and repeat the procedure in Step 5.
7. Proceed to the right (passenger's side) rear tire, and repeat the procedure in Step 5.
8. Proceed to the left (driver's side) rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPM warning light is still flashing. If yes, turn the ignition switch to OFF.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label.
11. Put the valve caps back on the valve stems

i'M not sure this will reset the tpms, but will just re assign them to the wheel in which they are installed, but it's worth a shot!

 

[NathanJax]

Found this in my manual:
TPM Sensor Identification Codes

That's what I meant by, "I tried resetting all the sensors. We heard the horn honk and all was well."

i'M not sure this will reset the tpms, but will just re assign them to the wheel in which they are installed, but it's worth a shot!

Your correct. it "assigns" the sensor in the rim to the receiver on each corner

 

[OKLAGMCRUISER]

i thought the dealer had a wand/scanner that could reset them...