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I have no power on the ignition 1 wire only on ignition 2

Tiny
FISTFIGHT
  • MEMBER
  • 2009 TOYOTA MATRIX
  • 85 MILES
So here it is. I had to have an ignition interlock device installed because I went to a wedding with my girlfriend and had a couple glasses of wine. In Alameda county even if you arent over the limit but are close enough and go through a check point you can still get in trouble and are required even as a first time offender to install an IID for 5 months.

So I took the car to the installer and the very next morning after it was installed my car wouldnt start. I had it towed back to the installer and he told me I had no power on the ignition1 wire that he tapped into so he moved his tap to ignition2 and the car starts. He says he checked all the fuses and it should have power but it dosnt.

He said to take it to the dealer since its under warranty and have them look at it.

The car has never had any sort of problem like this before and I know it has to be their equipment install that caused it.

I'd like to climb under the dash with a tester and see if I can find why it no longer has power because when this thing is removed Im afraid my car wont start.

Can anyone provide any insight or a diagram of the ignition system to a 2009 Matrix S?

I just want to be sure my car isnt damaged before its too late.
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Tuesday, January 31st, 2012 AT 6:29 PM

10 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test AM1 7.5 fuse located in left end of dash driver side junction box and also the Ig1 relay same location-see below
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Tuesday, January 31st, 2012 AT 6:47 PM
Tiny
FISTFIGHT
  • MEMBER
  • 6 POSTS
Can you tell me how to go about testing the IG1 relay with a multimeter or other tool?
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Tuesday, January 31st, 2012 AT 7:12 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Try swapping it with a like one and see what happens-BTW the ignition switch activates the relay and then apply power to AM1 fuse -might want to check the switch
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Tuesday, January 31st, 2012 AT 7:18 PM
Tiny
FISTFIGHT
  • MEMBER
  • 6 POSTS
The installer tapped the line before the relay I think soI want to check the wire between the switch and the relay. When I look at the ignition switch I see two grey wires. The ignition 1 wire is grey. Do you have a diagram of the ignition connection showing what wire goes to the relay?
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Monday, February 6th, 2012 AT 8:03 PM
Tiny
FISTFIGHT
  • MEMBER
  • 6 POSTS
Ok I was able to test the relay and its working fine. I connected it with a battery and can hear the click and on the two poles that connected by the activation I get continuity.

I then tested the wire where he tapped it and with one probe on the wire between the switch and the relay and the other on the chassis of the car I get continuity and still no power. I dont think this is right. Thoughts?
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Monday, February 6th, 2012 AT 9:55 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have power coming from the ignition switch to the relay-Problem here could be the computer itself
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Tuesday, February 7th, 2012 AT 4:41 AM
Tiny
FISTFIGHT
  • MEMBER
  • 6 POSTS
No I don’t. I only have power on pin 5 of the socket for ig1 relay for the image you showed me above. I have no power with the key on except coming from ignition 2 circuit wire.

Pin 2 of the ig1 socket connects to the wire the installer tapped into originally for ig1 before moving to the ig2 circuit and when I test this I get no power with the key off or on but if I test pin 2 to ground I get continuity. I’m not sure if that’s normal when no power is going to it or if I have a short.
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Tuesday, February 7th, 2012 AT 4:25 PM
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
U can test it by hooking from #2 ing. Relay power wire to #1 ing. Relay power wire. All you really all u need to do is hook into a ingnition wire and run it to the relay.
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Thursday, February 9th, 2012 AT 6:44 PM
Tiny
FISTFIGHT
  • MEMBER
  • 6 POSTS
This issue was resolved today when I took the car back to the installer. It turns out the wire he tapped into originally was not the IG1 wire but the wire that goes to my fan control knob on the dash. When I was there another installer looked at it and when he tested the original tap there was no power but when the knob was turned on it suddenly had power. So it looks like the wrong wire was tapped when the device was installed. Had I known that all I had to do was turn on my fan to start the car I would have been able to drive it to them to correct the problem.

Thanks for the assistance though.
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Thursday, February 23rd, 2012 AT 10:04 PM
Tiny
RIVERMIKERAT
  • MECHANIC
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Sounds almost as bad as Santa Clara County. Glad to hear the problem is fixed.

Closing thread.
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Monday, March 12th, 2012 AT 12:57 AM

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