HELP!!! My Vitz/yaris acting weird - Toyota Yaris Forums

mudi · 10-15-2010, 10:04 AM

I made video of my vitz acting strangely can any one help to fix this problem ...Thanks in advance... my vitz is 2 year old

http://www.youtube.com/watch?v=O6nEgdYWG7o

Betrivent · 10-15-2010, 11:45 AM

That's a computer issue if I've ever seen one.

if I recall you can unplug the battery to reset the ECU.

mudi · 10-15-2010, 12:10 PM

i tried resting ECU but no luck :(

chrisj · 10-15-2010, 12:17 PM

One word...possession.

mudi · 10-15-2010, 12:45 PM

@chrisj lol I also thaught of that too

*Astroman* · 10-15-2010, 01:20 PM

Gotta be electrical, but where?

llewellyn · 10-15-2010, 01:29 PM

CTScott might know what to do..

monchito18 · 10-15-2010, 01:47 PM

idle speed sensor??? thought its a bit weird...

CTScott · 10-15-2010, 02:37 PM

Have you installed a remote starter, alarm system, fog lights, or anything else which would have required tapping wires? The automatic transmission shift supplies a signal to the ECM indicating what position it is in. It is a simple switch that in each position directs a +12V signal to a different wire and the ECM has a pin for each shift position.

If I had to guess, I would say that somehow the brake switch or tail light feed got joined to one of the shift selector output wires and is confusing the ECM.

mudi · 10-15-2010, 02:37 PM

@monchito18 no when its idle its normal when i hit brake it accelerates ...but when i am driving the brake operate normally...but gear indicator goes off...also when i turn on indicator and hit brake while driving indicator turns off... :(

mudi · 10-15-2010, 02:40 PM

@CTScott yes i have installed alarm system and anti theft switch ... but I installed it about six months ago ... if this is a problem can you tell me how to fix it in simple words lol

CTScott · 10-15-2010, 02:44 PM

Quote:

Originally Posted by mudi

@CTScott yes i have installed alarm system and anti theft switch ... but I installed it about six months ago ... if this is a problem can you tell me how to fix it in simple words lol

If the problem just started, and the alarm has been installed for that long, I would look for a damaged or pinched wire. You would need to take the center console out to get at the connectors on the shift lever.

mudi · 10-15-2010, 03:31 PM

@CTScott okie i will get it checked by electrician but here mechanics and electricians sucks specially they dont have knowledge about vitz they treat it as other cars. Thanks for your advice :)

Kal-El · 10-18-2010, 02:42 PM

Quote:

Originally Posted by mudi

@CTScott okie i will get it checked by electrician but here mechanics and electricians sucks specially they dont have knowledge about vitz they treat it as other cars. Thanks for your advice :)

I was going to recommend taking it to the dealer. I assume there are competent technicians there? Since you own a Toyota, is there not a dealer?

This is usually the type of problem people can't fix themselves. Computer/electrical systems in cars are the most complicated aspect of them and require specialized expertise and equipment to even find out what's wrong, never mind to fix it. Many times, the whole interior has to come apart.

This is definitely one of a kind for the Yaris - the most trouble free car ever.

Good luck.

mudi · 10-18-2010, 02:50 PM

Quote:

Originally Posted by Kal-El

I was going to recommend taking it to the dealer. I assume there are competent technicians there? Since you own a Toyota, is there not a dealer?

This is usually the type of problem people can't fix themselves. Computer/electrical systems in cars are the most complicated aspect of them and require specialized expertise and equipment to even find out what's wrong, never mind to fix it. Many times, the whole interior has to come apart.

This is definitely one of a kind for the Yaris - the most trouble free car ever.

Good luck.

ya I took it to the toyota dealer... and their electrician said all this...Actually in Pakistan toyota dealers dont sell Vitz/yaris they are imported from japan as reconditioned car and the local dealers sell them in their show room...so here support for vitz is very bad ...

CTScott · 10-18-2010, 02:54 PM

Quote:

Originally Posted by mudi

ya I took it to the toyota dealer... and their electrician said all this...Actually in Pakistan toyota dealers dont sell Vitz/yaris they are imported from japan as reconditioned car and the local dealers sell them in their show room...so here support for vitz is very bad ...

The first thing I would recommend that he try (after checking the battery voltage for significant increase or decrease) is to disconnect the small connector on the alternator, which gives the ECM, A/C ECU and power steering ECU info about the alternator's output.

mudi · 10-16-2010, 04:49 AM

@CTScott can you please tell me what ECM stands for?

*tk-421* · 10-16-2010, 06:10 AM

Quote:

Originally Posted by mudi

@CTScott can you please tell me what ECM stands for?

http://en.wikipedia.org/wiki/Engine_Control_Module

10-15-2010, 10:04 AM	#1
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	HELP!!! My Vitz/yaris acting weird I made video of my vitz acting strangely can any one help to fix this problem ...Thanks in advance... my vitz is 2 year old http://www.youtube.com/watch?v=O6nEgdYWG7o

10-15-2010, 12:17 PM	#4
chrisj Hooch Brewer-Shine Sipper View User's Garage Drives: 2009 5-dr LB Join Date: Aug 2010 Location: S. Jesus, Kentucky Posts: 646	One word...possession. __________________

10-15-2010, 01:20 PM	#6
Astroman Modded Moderator View User's Garage Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007 Location: Wenatchee, WA Posts: 3,670	Gotta be electrical, but where? __________________ Please visit my online store for computer stuff and Official Yarisworld decals!

10-15-2010, 01:47 PM	#8
monchito18 View User's Garage Drives: Yaris sedan Join Date: Jan 2009 Location: Puerto Rico, Isabela Posts: 427	idle speed sensor??? thought its a bit weird... __________________

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10-15-2010, 11:45 AM	#2
Betrivent Not quite a noob Drives: e46 325 Join Date: Jul 2009 Location: edmonton Posts: 1,408	That's a computer issue if I've ever seen one. if I recall you can unplug the battery to reset the ECU.

10-15-2010, 12:10 PM	#3
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	i tried resting ECU but no luck :(

10-15-2010, 12:45 PM	#5
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	@chrisj lol I also thaught of that too

10-15-2010, 01:29 PM	#7
llewellyn Drives: 04 Echo Join Date: Jan 2009 Location: Canada Posts: 16	CTScott might know what to do..

10-15-2010, 02:37 PM	#9
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Have you installed a remote starter, alarm system, fog lights, or anything else which would have required tapping wires? The automatic transmission shift supplies a signal to the ECM indicating what position it is in. It is a simple switch that in each position directs a +12V signal to a different wire and the ECM has a pin for each shift position. If I had to guess, I would say that somehow the brake switch or tail light feed got joined to one of the shift selector output wires and is confusing the ECM.

10-15-2010, 02:40 PM	#11
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	@CTScott yes i have installed alarm system and anti theft switch ... but I installed it about six months ago ... if this is a problem can you tell me how to fix it in simple words lol

10-15-2010, 03:31 PM	#13
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	@CTScott okie i will get it checked by electrician but here mechanics and electricians sucks specially they dont have knowledge about vitz they treat it as other cars. Thanks for your advice :)

10-16-2010, 04:49 AM	#17
mudi Drives: Vitz 2005 model Join Date: Jan 2010 Location: Pakistan, Quetta Posts: 19	@CTScott can you please tell me what ECM stands for?