Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > DIY / Maintenance / Service
  The Tire Rack

Reply
 
Thread Tools Display Modes
Old 03-13-2017, 01:59 PM   #1
Nerfherder
 
Drives: 03 Yaris d4d bit of a shed
Join Date: Mar 2017
Location: East midlands
Posts: 4
Heater not working, fuses/relays missing

Hi, just bought a 2003 Yaris d4d, the heating blower isn't working, well it blows but only cold.
I looked in the engine fusebox and according to the helpful diagram, heater sub 1 and heater sub 2 are missing.
Does anyone know what they are and where I can get replacements?
I'm in the UK if it makes any difference. Thanks.
Nerfherder is offline   Reply With Quote
Old 03-13-2017, 02:10 PM   #2
WeeYari
 
WeeYari's Avatar
 
Drives: 06 Polar White 5dr, 13 Soul 4u
Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 4,483
On a Gen2;

HTR SUB1 is 30A
HTR SUB2 is 40A

Can't state if Gen1 are different or not, but I'm guessing the same.

What should be concerning is why these fuses are missing. Presumably blew in the past and not replaced. Or, maybe replaced and blew again, resulting in prior owner saying screw it and live without heat.
__________________
WeeYari is offline   Reply With Quote
Old 03-13-2017, 04:29 PM   #3
Nerfherder
 
Drives: 03 Yaris d4d bit of a shed
Join Date: Mar 2017
Location: East midlands
Posts: 4
the 2 relays dont seem to be there either, any clues?
Nerfherder is offline   Reply With Quote
Old 03-14-2017, 02:10 PM   #4
Nerfherder
 
Drives: 03 Yaris d4d bit of a shed
Join Date: Mar 2017
Location: East midlands
Posts: 4
I've took some photos, its not the fuses, but where the gaps are, I'm presuming they are missing relays?
Attached Images
File Type: jpg rsz_img_20170314_175039.jpg (41.9 KB, 20 views)
File Type: jpg rsz_img_20170314_175107.jpg (36.5 KB, 20 views)
Nerfherder is offline   Reply With Quote
Old 03-14-2017, 02:42 PM   #5
shepd
 
Drives: 2007 Yaris 5 door RS
Join Date: Nov 2014
Location: Kitchener, ON
Posts: 178
UK isn't likely to have the cold weather package. Canadian Yarises generally have an electric heater to help out the coolant based heater.

If you are getting fan, but no heat, your heater core has an issue. Either it is not getting coolant (low coolant), it's plugged, or it has a leak.

I guessing those two fuses and relays are for the PTC heater. But maybe I'm way off base here.
shepd is offline   Reply With Quote
Old 03-14-2017, 03:50 PM   #6
tmontague
2zr-fe dream team
 
tmontague's Avatar
 
Drives: 08 Vios M/T, 05 4wd Vibe
Join Date: Oct 2012
Location: Hamilton Ont.
Posts: 1,550
I'm thinking the same thing. You should have heat when the car is warmed up regardless. If not then you likely have a blocked heater core and you need to flush it.

Like Shepd said, the heater those fuses are for are for the cold weather package that uses an electric heater so you have heat much quicker in cold starts.

What's your coolant level like?
__________________
2zr swapped Vios, oil catch can, TRD rear sway bar, MI lowering springs, In cabin+under hood SSK, TRD shift knob, HID projector/Halo lights, 10mm rear axle spacers, custom header back exhaust, Front splitter, Sickspeed dual horns, Tokiko Blue's in rear, triple gauges, Whiteline bushings, Sparco pedal covers, Viper Keyless entry, DC Sports CAI, NST u/d crank pulley, solid poly engine mounts, MR Racing Flywheel, Konig Dial Ins 15x7 +35
tmontague is offline   Reply With Quote
Old 03-14-2017, 11:53 PM   #7
B.B._07
 
Drives: 07 5dr
Join Date: Nov 2015
Location: YYC
Posts: 83
In addition to checking the level of the coolant I would also check if you have an air trapped in the system. It's possible that the cooling system was serviced recently and all the air was not bleed out or that you have a coolant leak letting air into the system. You can check for air in the system by taking off the rad cap when the engine is cold and letting the engine idle until the radiator cooling fan cycles on a couple time. If you see air bubbles coming up to the rad cap opening that's air trapped in the system. The Echo factory service manual also suggests checking the rotary heating controls to see if you can hear a clicking sound as you turn the knob and if you can feel a little resistance. 90's Honda's where well known to have the heater knob break at the base making the knob useless.
B.B._07 is offline   Reply With Quote
Old 03-15-2017, 07:41 AM   #8
Nerfherder
 
Drives: 03 Yaris d4d bit of a shed
Join Date: Mar 2017
Location: East midlands
Posts: 4
Thanks all I'll check the coolant, the heater knob is clicking so don't think its that.
Nerfherder is offline   Reply With Quote
Old 03-15-2017, 10:46 AM   #9
tmontague
2zr-fe dream team
 
tmontague's Avatar
 
Drives: 08 Vios M/T, 05 4wd Vibe
Join Date: Oct 2012
Location: Hamilton Ont.
Posts: 1,550
The 1nz does a good job of self burping the air out of the coolant and it will pull from the overflow reservoir when that happens.

That said if your coolant was replaced and not run with the cap off then you could have a large volume of air trapped inside the cooling system which may not allow it to self burp.

The protocol that has always worked for me on all toyota engines for getting air out of the coolant is as follows:

1. Add coolant back into the empty radiator
2. Once the rad is full of coolant keep the cap off and start the car
3. As the level goes down at the filler neck, keep filling it until no more bubbles appear or rise out of the filler neck and the level no longer goes down.
4.If the level start rising because the coolant is warming up then put the cap on and turn the car off.
5. Fill the overflow container just above the full mark and go for a drive that allows the car to get up to operating temps.
6. pull back in your driveway and turn the car off, then check the level on the coolant overflow bottle and fill to the full mark.
7. Drive your car normally and every day or two check the overflow coolant level. It should start to normalize after a day. This is how you know all the air is out of the system.

This can all be done in a much simpler way in your driveway if it is hot enough outside to idle the car up to operating temp, if you have a specific funnel called a "spill free funnel". Personally I don't use it because very rarely is it hot enough outside when I drain the coolant to actually heat up the car during idle in a realistic time frame. I just drive it to speed up the process.
__________________
2zr swapped Vios, oil catch can, TRD rear sway bar, MI lowering springs, In cabin+under hood SSK, TRD shift knob, HID projector/Halo lights, 10mm rear axle spacers, custom header back exhaust, Front splitter, Sickspeed dual horns, Tokiko Blue's in rear, triple gauges, Whiteline bushings, Sparco pedal covers, Viper Keyless entry, DC Sports CAI, NST u/d crank pulley, solid poly engine mounts, MR Racing Flywheel, Konig Dial Ins 15x7 +35
tmontague is offline   Reply With Quote
Old 03-15-2017, 02:51 PM   #10
stykerdk
Yaris Hybrid Limited 2015
 
Drives: yaris Hybrid limited 2015
Join Date: Mar 2012
Location: Denmark
Posts: 34
Do you know the history of the car?
The 1,4 D4D is well known for blown head gasket, specially on the early models.
And that is often detected with the car not heating.
The worst thing is it often requires a new cylinder head to fix the problem.
So start with getting an exhaust gas test of your coolant.
__________________
Yaris Hybrid Limited 2015
Yaris 1,33 T2 Touch 2013
stykerdk is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
A/c & heater fan not working b_hickman11 DIY / Maintenance / Service 15 01-05-2016 04:09 PM
Freon smell and heater not working as good as it used to angrygenerator DIY / Maintenance / Service 5 02-09-2013 07:02 PM
heater not working water coolant level drops Mike Hancock DIY / Maintenance / Service 4 11-03-2011 02:14 PM
NEED ENGINE CHECK LIGHT CODE LIST Attitude Forced Induction Forum 12 04-11-2011 06:38 PM
Rostra seat heater and lumbar support sesmith In Car Entertainment + Electronics (audio / video / alarm) 1 01-03-2009 09:51 AM


All times are GMT -4. The time now is 05:36 PM.




YarisWorld
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.