TPMS Flashing
#1
TPMS Flashing
A couple of days ago the TPMS light started flashing on my 2004 GX. This morning I took it to a trusted tire shop. They checked each sensor, including the spare, and found they were all sending a signal. At 11 years old, and they are original as far as I know (I've owned it about 7 years), the tech said the signal may be too weak for the ECU to pick up. He didn't want to start changing sensors in the event it is an ECU issue. Not sure what to do for now, other than leave it alone.
Any suggestions? Is there a way to confirm the ECU is good? Do the scanners tell how strong the signal is?
Any suggestions? Is there a way to confirm the ECU is good? Do the scanners tell how strong the signal is?
#3
#4
The TPMS sensor on my 2008 GX came on the other day as well.
Checked the tire pressure on all 4 tires, then the spare. The spare was low.
Refilled spare and light did not go out. Found and pressed the button under steering wheel and light went out and has not returned.
Might try that.
Good luck.
Checked the tire pressure on all 4 tires, then the spare. The spare was low.
Refilled spare and light did not go out. Found and pressed the button under steering wheel and light went out and has not returned.
Might try that.
Good luck.
#6
Is the logical next step a trip to a trusted facility to whether the ECU is bad? Is it possible one of the sensor batteries is simply low and the ECU isn't picking up the signal but it is strong enough for a scanner to recognize?
If I wasn't close to trading it in/selling I'd live with it.
If I wasn't close to trading it in/selling I'd live with it.
#7
The TPMS sensor on my 2008 GX came on the other day as well.
Checked the tire pressure on all 4 tires, then the spare. The spare was low.
Refilled spare and light did not go out. Found and pressed the button under steering wheel and light went out and has not returned.
Might try that.
Good luck.
Checked the tire pressure on all 4 tires, then the spare. The spare was low.
Refilled spare and light did not go out. Found and pressed the button under steering wheel and light went out and has not returned.
Might try that.
Good luck.
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#8
#9
I recently purchased a 08 GS350 and on the test drive noticed the lite on and message center showing low pressure. We checked the pressures which were low, salesperson ran car through shop, I asked them to put 35 psi in the tires. When he came out light and message were gone, I questioned him if they just reset system and light might come back on. I live about a two hour drive away and lo and behold light did come back on and was flashing. Before I got home it did go off but then came on then again, and flashed several dozen times before going steady. When I arrived home I rechecked air pressures. Hum, 32 to 33 psi. I reset the pressure to 35 which I have since raised to 40. No more light. I did read in tips and tricks about setting a lower set point on the system but haven't tried it yet. I like you figured light flashing and due to age of car there was a weak sensor or something. But adjusting the tire pressure has worked for now. I have put around a thousand or so miles on car since and still no light flashing or otherwise.
#10
In my case, the light was flashing because the tire a/b button had been pushed. The GX is set up to accept two sets of wheels. The system was looking for the second set of wheels and flashing the light because they weren't there - system fault. I pushed the button back to the "a" set of wheels and the light went out.
#11
In my case, the light was flashing because the tire a/b button had been pushed. The GX is set up to accept two sets of wheels. The system was looking for the second set of wheels and flashing the light because they weren't there - system fault. I pushed the button back to the "a" set of wheels and the light went out.
#12
#14
I would be willing to bet that you have a dead sensor and here's why:
Each of the 5 tire sensors runs off of a battery that has a life expectancy of 10 years (congrats on getting 11 out of them). The tire shop you took it to may have actually picked up a signal from a different tire twice or from the car next to it giving him the impression that the sensor was functioning properly. The only way to know for sure if you have a dead sensor is to hook up a scan tool to the vehicle and compare the sensor codes in the data list to the sensors that the activation tool are picking up. The probability of you having an issue with the TPMS ecu is HIGHLY unlikely but possible especially in the case of rodent damage. But, like I said earlier, you probably have a dead sensor.
Each of the 5 tire sensors runs off of a battery that has a life expectancy of 10 years (congrats on getting 11 out of them). The tire shop you took it to may have actually picked up a signal from a different tire twice or from the car next to it giving him the impression that the sensor was functioning properly. The only way to know for sure if you have a dead sensor is to hook up a scan tool to the vehicle and compare the sensor codes in the data list to the sensors that the activation tool are picking up. The probability of you having an issue with the TPMS ecu is HIGHLY unlikely but possible especially in the case of rodent damage. But, like I said earlier, you probably have a dead sensor.
#15
I would be willing to bet that you have a dead sensor and here's why:
Each of the 5 tire sensors runs off of a battery that has a life expectancy of 10 years (congrats on getting 11 out of them). The tire shop you took it to may have actually picked up a signal from a different tire twice or from the car next to it giving him the impression that the sensor was functioning properly. The only way to know for sure if you have a dead sensor is to hook up a scan tool to the vehicle and compare the sensor codes in the data list to the sensors that the activation tool are picking up. The probability of you having an issue with the TPMS ecu is HIGHLY unlikely but possible especially in the case of rodent damage. But, like I said earlier, you probably have a dead sensor.
Each of the 5 tire sensors runs off of a battery that has a life expectancy of 10 years (congrats on getting 11 out of them). The tire shop you took it to may have actually picked up a signal from a different tire twice or from the car next to it giving him the impression that the sensor was functioning properly. The only way to know for sure if you have a dead sensor is to hook up a scan tool to the vehicle and compare the sensor codes in the data list to the sensors that the activation tool are picking up. The probability of you having an issue with the TPMS ecu is HIGHLY unlikely but possible especially in the case of rodent damage. But, like I said earlier, you probably have a dead sensor.