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08-08-2009, 10:44 PM | #127 |
Drives: 2009 Yaris Hatchback Join Date: Feb 2009
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08-08-2009, 10:46 PM | #128 |
Drives: 2009 Yaris Hatchback Join Date: Feb 2009
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Is it possible to resume this tomorrow? My car's in the driveway and it's starting to rain. Plus it's getting kinda late. I have all day tomorrow, if you're game and available?
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08-08-2009, 10:52 PM | #129 |
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No problem.
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08-09-2009, 09:16 AM | #130 |
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OC ECU.jpg
The first thing to check, when you have a chance today is a couple of voltage readings on the Occupant Classification ECU cable harness. If you look at the image above J24 has the Black connector going to it and U1 has the Gray connector. Pull the J24 Black connector and then measure the following (on the cable connector side): Put the black lead on pin 3 and the red one on the wire being checked. Pin 1 (Violet wire) to Pin 3 (White wire with black stripe) Pin 7 (Beige wire) to Pin 3 (White wire with black stripe) |
08-09-2009, 10:05 AM | #131 |
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Pin 1-3: looks like .14
Pin 3-7: looks like .12/.13 |
08-09-2009, 10:18 AM | #132 |
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And, of course, as soon as I get outside, it starts pouring rain. I'd continue, but I have to keep getting out of the car so I can move closer to my house where my iPod Touch can pickup an internet signal to keep refreshing the forum for directions
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08-09-2009, 10:47 AM | #133 |
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Nothing like working in the rain.
Are those readings with the ignition on or off? It should be on for the readings. 7-3 should be 12V with the key on or off. 1-3 should be 12V only with the key on. Also, with your meter, when I had you check the meter by measuring the battery voltage last night, did you see 14., as opposed to the .14 that you just read on 1-3? |
08-09-2009, 12:03 PM | #134 | |
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Quote:
My connector seems to be labeled left to right, whereas as yours is right to left |
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08-09-2009, 12:05 PM | #135 |
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Scratch that...I'm retarded. Your pic is of the ECU, not the connector. It's all good now.
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08-09-2009, 02:21 PM | #136 | |
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Quote:
OK. So both power feeds into the module are fine. Try removing the resistors and then reading the 1-3 and 2-3 voltages on the sensor connectors. |
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08-09-2009, 02:26 PM | #137 |
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I am totally subscribed to this. Mgargano and CTScott, BIG props to both of you for having this conversation on a thread.
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
08-09-2009, 02:32 PM | #138 |
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Which pins get which leads?
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08-09-2009, 02:34 PM | #139 |
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08-09-2009, 02:44 PM | #140 |
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Ignition on, J24 plugged back into the OC-ECU, resistors on the 4 weights sensors removed and....
Nothing. Zeros on all four sensors for 1-3 and 2-3 |
08-09-2009, 02:50 PM | #141 |
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And, U1 (the gray connector) is plugged in?
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08-09-2009, 02:56 PM | #142 |
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08-09-2009, 03:01 PM | #143 |
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OK. Try measuring each of the three pins relative to chassis ground (a seat mounting bolt would be fine). Red on 1, 2, and then 3 and black to the bolt.
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08-09-2009, 03:09 PM | #144 |
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