TPMS light playing games. - Toyota Yaris Forums

Cosmonaut · 09-01-2009, 12:58 AM

so the other night on my way home the light decided to come on for the ride home. the next day it was on. finally two days later it turns off with out me doing anything with it.
anyone have this happen?

Shroomster · 09-01-2009, 01:23 AM

was it solid or blinking?

if it was solid (not blinking) most likely your air pressure was off.

If you have never checked the air in your tires I'd suggest to start doing it.

CTScott · 09-01-2009, 11:02 AM

If you want to find out what the issue is/was, you can get the TPWS to flash the light in a pattern which indicates what the trouble code is. Check out this post for instructions:

http://www.yarisworld.com/forums/sho...8&postcount=11

Cosmonaut · 09-01-2009, 03:17 PM

the light was solid. i checked it last night and the psi was at~23. so i bumped it up to around 31/28 and it feels a lot better now.

thanks scott that info is very helpful. its similar to reading diagnostics on my 87 mustang with the jumper method and counting blips. ill have to check it tonight to see what the code is.
thanks again.

Shroomster · 09-02-2009, 12:01 AM

yeah if it was blinking it means lost communications..usually...it was still receiving signals from the tpms just not the correct psi.

bronsin · 09-02-2009, 08:41 AM

Quote:

Originally Posted by CTScott

If you want to find out what the issue is/was, you can get the TPWS to flash the light in a pattern which indicates what the trouble code is. Check out this post for instructions:

http://www.yarisworld.com/forums/sho...8&postcount=11

If you have a scan tool will the codes show up there? Thanks!

Yaris Hilton · 09-02-2009, 08:51 AM

I believe there are separate electronic control units for the engine & transmission, the ABS system, the airbags, and now for the TPMS. They're accessed separately. The code reader only gets the info from the engine control unit.

CTScott · 09-02-2009, 08:52 AM

Quote:

Originally Posted by bronsin

If you have a scan tool will the codes show up there? Thanks!

No (unless it supports Toyota specific enhanced diagnostics). Standard scantools, like the ScanGauge, only support some portion of the standard 229 engine / emissions PIDs.

Shroomster · 09-02-2009, 12:18 PM

^^^correct.

you need a toyota TIS scanner tool....techstream for short.

09-01-2009, 12:58 AM	#1
Cosmonaut The Last Baron View User's Garage Drives: 09 Polar White HB Join Date: Jun 2009 Location: Sanentoneyow, Tecksis Posts: 280	TPMS light playing games. so the other night on my way home the light decided to come on for the ride home. the next day it was on. finally two days later it turns off with out me doing anything with it. anyone have this happen? __________________ Sanction this outbreak, a Virus conspires. Single sparks are Spectral Fires! \| UR 19mm sway \|

09-01-2009, 03:17 PM	#4
Cosmonaut The Last Baron View User's Garage Drives: 09 Polar White HB Join Date: Jun 2009 Location: Sanentoneyow, Tecksis Posts: 280	the light was solid. i checked it last night and the psi was at~23. so i bumped it up to around 31/28 and it feels a lot better now. thanks scott that info is very helpful. its similar to reading diagnostics on my 87 mustang with the jumper method and counting blips. ill have to check it tonight to see what the code is. thanks again. __________________ Sanction this outbreak, a Virus conspires. Single sparks are Spectral Fires! \| UR 19mm sway \|

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09-01-2009, 01:23 AM	#2
Shroomster '07 to '12:2 wipers to 1? View User's Garage Drives: '12 5-door LE & '14 5-door LE Join Date: Apr 2007 Location: Orlando Posts: 1,999	was it solid or blinking? if it was solid (not blinking) most likely your air pressure was off. If you have never checked the air in your tires I'd suggest to start doing it.

09-01-2009, 11:02 AM	#3
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	If you want to find out what the issue is/was, you can get the TPWS to flash the light in a pattern which indicates what the trouble code is. Check out this post for instructions: http://www.yarisworld.com/forums/sho...8&postcount=11

09-02-2009, 12:01 AM	#5
Shroomster '07 to '12:2 wipers to 1? View User's Garage Drives: '12 5-door LE & '14 5-door LE Join Date: Apr 2007 Location: Orlando Posts: 1,999	yeah if it was blinking it means lost communications..usually...it was still receiving signals from the tpms just not the correct psi.

09-02-2009, 08:51 AM	#7
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	I believe there are separate electronic control units for the engine & transmission, the ABS system, the airbags, and now for the TPMS. They're accessed separately. The code reader only gets the info from the engine control unit.

09-02-2009, 12:18 PM	#9
Shroomster '07 to '12:2 wipers to 1? View User's Garage Drives: '12 5-door LE & '14 5-door LE Join Date: Apr 2007 Location: Orlando Posts: 1,999	^^^correct. you need a toyota TIS scanner tool....techstream for short.