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12-28-2010, 09:05 PM | #19 |
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Do you by any chance have (and know how to use) a multimeter?
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12-28-2010, 09:32 PM | #20 |
Drives: 2008 Yaris HB Join Date: Nov 2010
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Lol. Yeah. Got one at work. And I know how to use it. Funny thing is, who owns one and can't use it. Just joking around. I'm curious to know how YOU know all this stuff tho. Your knowledge base is incredible.
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12-28-2010, 09:42 PM | #21 |
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You'd be amazed as to how many people have one laying around, but have no clue as to what to do with it. I'm a EE with 20 years experience in robotics and medical automation.
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12-28-2010, 09:47 PM | #22 |
Drives: 2008 Yaris HB Join Date: Nov 2010
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12-29-2010, 08:11 AM | #23 |
Drives: 2008 Yaris HB Join Date: Nov 2010
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Heater is ok. False alarm. I didn't put the relay in all the way. But about that multimeter....
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12-29-2010, 08:50 AM | #24 | |
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Quote:
In the picture below (of the headlight stalk connector) measure the voltage on the sky blue wire (next to the pink wire) with respect to either of the white wires with the black stripe. Headlights off: Headlights on (low beam): Headlights on (high beam):
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12-29-2010, 09:59 AM | #25 |
Drives: 2008 Yaris HB Join Date: Nov 2010
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voltage numbers
off- 13.8 on- 13.7 hi- .04 that last one seems funny to me, but i'm no pro. |
12-29-2010, 10:14 AM | #26 |
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That's fine, now same with the pink wire.
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12-29-2010, 11:00 AM | #27 |
Drives: 2008 Yaris HB Join Date: Nov 2010
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uh i did the pink wire first... oops, but i went out and did the sky blue one just now
off- 12.6 on- 0, yes zero hi- 3.4 ???? oh man |
12-29-2010, 12:25 PM | #28 |
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OK - The off- 13.8, on- 13.7, hi- .04 makes sense for the pink, which is the high beam wire.
The off- 12.6, on- 0, hi- 3.4 is OK for the light blue, which is the low beam. So, the headlight stalk is working correctly. Next, measure the resistance between terminals 3 and 5 of the H-LP AMT relay (they are the two larger perpendicular to each other terminals). Also, with the H-LP relay out, measure the voltage between the pin 5 position (the large blade that is perpendicular to the other 3) and ground.
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12-29-2010, 12:46 PM | #29 |
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Ok. There is no voltage between 3 and 5 on the relay itself. But I am getting 12.88 on the housing ( where the relay plugs into) on 3 and 5. And on 5 and ground 12.88 again
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12-29-2010, 12:52 PM | #30 |
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On the relay, measure resistance, rather than voltage between those two pins.
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12-29-2010, 01:06 PM | #31 |
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ah duh.... resistance is null, nothing at all
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12-29-2010, 02:57 PM | #32 |
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but if its a relay, shouldnt there be no resistance until 12v is applied to the little prongs?
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12-29-2010, 03:36 PM | #33 |
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OK that's good. Now, voltage on each of the three headlight wires (on one side is fine)
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12-29-2010, 03:40 PM | #34 |
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It's a normally open relay, so the resistance is infinite (displayed as OL, null, etc.) Then when the relay is powered, it goes to zero.
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12-29-2010, 03:49 PM | #35 |
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12-29-2010, 03:55 PM | #36 |
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brown and green wire on driver side 12.88
white wire nothing... i am testing each wire to a ground right? |
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