iFixit - Answers With Device "Scion"

2011-2013 Scion tC: Car Only Starts when I Bypass the Starter Fuse

Fri, 12 Sep 2025 19:07:09 -0700

My car is a 2005 Scion tC (they didn’t have that option when I made the forum.) It does not crank when I turn the key. If I hook up jumper cables same thing. I went through tests to see what it may be. I removed the starter relay/fuse from the fuse box. I was able to put to wires in the fuse “plug” to bypass the starter relay/fuse and the car starts. I went ahead and got a new fuse/relay and when I put it in, the same thing happens. Doesn’t crank at all. I have a multimeter to test different wire connections. I am trying to figure out what the problem is. I think it is the ignition switch or the park/neutral safety switch. I am not sure if that is right or even how to test that. I am adding a picture of someone bypassing the starter relay/fuse for a Scion xD

This is my fuse box, it is slightly different than the diagram you shared.

This image is a picture of how I can get the car to turn over and start. Like I said the fuse isn’t the issue (tested with a new one). That is however where the starter fuse is located.

This is an automatic transmission. With that being said, which contacts should I jump to test the neutral switch?

I tried these three combos for grounding the wires. I had no luck

This is what the connector and the wires look like

Something to note, I was able to get the car to try and start (the battery has been sitting and needs charged) by a combination of grounding the relay fuse as well as the first picture of me grounding the NSS connection. Pictures showing that

I only say that because that makes me assume the way I grounded the NSS worked that time because when I ground the Starter Relay it did start to work (like it does w/ the NSS normally.)

With all that being said what else could be the issue? It seems to me that something is not relaying the message to the starter relay properly so it does not try to run (like I said I had tried a brand new starter relay and that didn’t change anything). What are your thoughts? @travisjfox @oldturkey03

⟐ Commented Eylül 12, 2025 at 19:07 GMT-7

2008-Present Scion xB: having battery and power steering problems

Thu, 03 Oct 2024 03:25:41 -0700

my 09 xB has the battery light on and hard to steer. hard to keep running and no voltage increase on terminals when rev engine above 2500rpm. is there a module for power steering? is it the main control unit for the car?

⟐ Answered Ekim 03, 2024 at 3:25 GMT-7

2008-Present Scion xB: My power steering went out

Thu, 06 Apr 2023 17:37:14 -0700

I was in a hit and run accident the other day and my car was hit on the driver side door/fender. I drove my car back to my friends house to drop him off as soon as he got out of the passenger seat the airbag light for his side came on on my dashboard and my heat went out instantly. As I was driving my car the next morning my power steering went out and my blinkers no longer work. I connected the computer device to my car to see what code came up and I got the P0705. My dad wiped the codes from my dashboard twice. I set my key in the ignition to ACC for 10 minutes. Power steering came back but shut off immediately right after and then check engine light, traction control and my airbag light came back on. Do I have to replace just the TCM or the ECM?? Or both?

⟐ Answered Nisan 06, 2023 at 17:37 GMT-7

2004–2010 Scion tC: When I stop on the light idle going down but not stay jupm to 1200rpm

Thu, 16 Feb 2023 22:02:37 -0700

Hi I have a problem with my Scion tc 2006 .Onlny When I stop on the light idle going down but not stay and jupm to 1200rpm ,theb they fall back and stay in normal place . I"ve tred everything already.Clean throttle body new throttle body ,reset ECM 1000times .the problem was permanenet . Computer it doesn't show errors.

⟐ Answer edited Şubat 16, 2023 at 22:02 GMT-7

2014-2016 Scion tC: I am looking for a service manual for my 2015 TC. Where to look?

Thu, 31 Oct 2019 04:28:36 -0700

I have owned my TC since new and want to do as much of the servicing as possible myself. What would you recommend for either a hardcopy manual or an online resource?

Thank you!

Kris

⟐ Commented Ekim 31, 2019 at 4:28 GMT-7

2014-2016 Scion tC: Timing for the 2016 scion tc

Sat, 11 Nov 2017 07:53:43 -0700

I have a 2016 scion tc. Long story short i had to rebuild the motor and cant seem to find the timing for it anywhere. Anything helps

⟐ Answer accepted Kasım 11, 2017 at 7:53 GMT-7

2008-Present Scion xB: Aux to usb female for Bluetooth?

Sat, 13 Jul 2019 07:16:30 -0700

I'm trying to get Bluetooth in my xb but I don't need to upgrade my stereo. I just want to be able to play music, not make phone calls, etc. Has anyone tried an aux to usb female cord and a Bluetooth dongle for this? If so, has it worked? I know I can't use a Bluetooth dongle in the usb port itself.

⟐ Answer accepted Temmuz 13, 2019 at 7:16 GMT-7

2008-Present Scion xB: Why does the rpms get high when changing gears?

Tue, 27 Sep 2022 00:07:55 -0700

I have an automatic 2012 with 108,000 miles. On cold start, car sometimes will have a high idle, but not too bad. The main problem is that the rpms get high when I shift gears. I've taken the car to 3 mechanics and they can't find the solution. There's no air leaks. Throttle body, throttle position sensor and mass air flow sensor replaced. I've had mechanic do a tune up, oil change and I got new battery. Transmission place told me the transmission is good, that it shifts hard because of the high rpms. I don't know what else to do. Thanks.

⟐ Commented Eylül 27, 2022 at 0:07 GMT-7

2008-Present Scion xB: How to change rack n pinion

Thu, 22 Jan 2026 19:03:01 -0700

How to change rack n pinion

⟐ Answered Ocak 22, 2026 at 19:03 GMT-7

2008-Present Scion xB: Why is my window washer only squirting on the rear window

Sun, 05 Jan 2025 11:52:40 -0700

why is my window washer only squirting on the rear window. what needs to be replaced?

⟐ Answer edited Ocak 05, 2025 at 11:52 GMT-7

Scion: Changed my battery in 2007 Scion alarm won’t turn off

Wed, 29 May 2024 06:38:22 -0700

So drive the car to work battery was shot bought a new one changed it when I hooked up new battery alarm went crazy tried to turn off with key fob won’t turn off put key in to start car no power no lights only thing works is alarm and headlights worked fine before I swapped out battery it’s like it’s stuck in theft mode or something any help would be great thank u once again it’s a 2007 Scion tC

⟐ Commented Mayıs 29, 2024 at 6:38 GMT-7

2011-2013 Scion tC: unplugging my amp and a cable shorted and when I tried to turn on my c

Sun, 04 Jun 2023 07:11:50 -0700

I was unplugging my amp and a cable shorted and when I tried to turn on my car, it didn't turn on only the dashboard lights, the stereo didn't turn on either, the windows didn't go down either, and the cable could someone help me find out what it is?

⟐ Edited Haziran 04, 2023 at 7:11 GMT-7

2004–2010 Scion tC: Why is my RPM too high at lower speeds and car not shifting into third

Mon, 16 Jan 2023 06:38:42 -0700

Got a used engine under 55k mikes installed at auto shop due to a failed piston compression in my previous one. Get the car back a week later told it’s fine to drive. Come to find out that the RPM’s are way too high going a slower speeds. Took it in again and had them check the transmission and they installed a new filter and topped off fluid. Still having same issue but they told me that the car needs to relearn when to shift since but i drove it over 20 miles at various speeds and is doing the same thing. I told them to check the ECU but insisted that it just needed to relearn. What is the issue?

⟐ Commented Ocak 16, 2023 at 6:38 GMT-7

2012-2016 Scion FR-S: abs,traction an dbrake light on

Sun, 08 Jan 2023 05:11:36 -0700

i took it to Miata Toyota they said is the abs relay i changed the abs pump but still the same lights on help please!

⟐ Answered Ocak 08, 2023 at 5:11 GMT-7

Scion xD: 2008 Scion XD - fuse box number for windshield washer

Thu, 08 Sep 2022 15:20:54 -0700

What is the fuse box number for windshield washer?

⟐ Comment deleted Eylül 08, 2022 at 15:20 GMT-7

2011-2013 Scion tC: Why are my RPMS running high while in “last gear”?

Wed, 16 Oct 2019 21:17:41 -0700

I have a standard 2005 Scion tC, when I get to 5th(last gear) gear my RPMS get up to 4000. What would be the reason?

⟐ Answered Ekim 16, 2019 at 21:17 GMT-7

2008-Present Scion xB: My traction control light comes on on the freeway.

Thu, 29 Aug 2019 06:05:52 -0700

My scion is acting strange. On the freeway, at certain speeds, the traction control light comes on, and I lose speed. I try to give it more gas so I can keep up with traffic and it shifts hard and starts speeding up, and the traction control light shuts off. The Traction Control light is only on when this happens, and doesn't always come on when I lose power. Today the light came on while I was changing from one freeway to another(never got below 45 mph) and it tried to pull me into the other lane. I am a heavy truck technician, but I have never seen anything like this.

⟐ Answered Ağustos 29, 2019 at 6:05 GMT-7

2011-2013 Scion tC: Where should I buy my Brake Pads @?

Sun, 28 Apr 2019 09:37:39 -0700

Scion tC 2006

Toyota ?

OReil ? / Auto Z ? / eBay ?

⟐ Answered Nisan 28, 2019 at 9:37 GMT-7

Scion: Locate Transmission Tailight Switch

Tue, 17 Apr 2018 06:13:07 -0700

Where do I locate the Transmission taillight Switch on a 2006 Scion xB?

⟐ Answered Nisan 17, 2018 at 6:13 GMT-7

2011-2013 Scion tC: Heated seat (under the seat wiring diagram)

Fri, 08 Dec 2017 13:23:47 -0700

I have a 2011 Scion TC with leather heated seats and the heated seats are not working. I bought this car used from a dealership 2 years ago and am just getting around to see if I can fix the heated seats. My first thought was the fuses were bad. I switched out the fuses and still not working. I see a plug under the seat that is not plugged in to anything.

This may or may not be the problem, but I can't seem to find where this plug would hook up to. Have been trying to find a wiring diagram or some sort of tutorial online and just cannot find one. Can you help me with this?

⟐ Answer accepted Aralık 08, 2017 at 13:23 GMT-7