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#1 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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I disconnected the battery overnight (about 13 hours or so) and tried it this morning... still nothing positive. All dash indicators are still lit.
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#2 |
![]() ![]() ![]() ![]() ![]() ![]() ULTIMATEDrives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Try reading the codes from the SRS again.
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#3 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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#4 |
![]() ![]() ![]() ![]() ![]() ![]() ULTIMATEDrives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Here is the procedure for manually clearing the stored codes (The SM says that some codes do not clear with a power down):
1. With a jumper, connect the TC and CG terminals on the OBD port. 2. When the SRS light starts flashing the codes, within 3 to 10 seconds remove the jumper frm TC. After 3 seconds the SRS light will come on solid. 3. Within 2 to 4 seconds after the SRS lights, reconnect the jumper to TC. 4. Within 2 to 4 seconds the SRS light will go off. Once it does, within 2 to 4 seconds disconnect TC. 5. Within 2 to 4 seconds the SRS light will come one solid again. Within 2 to 4 seconds after the SRS lights, reconnect the jumper to TC. 6. Within 2 to 4 seconds the SRS light will go off. One second later, if all DTCs are cleared the SRS light will flash steadily on and off. If codes are still registered it will flash in the pattern to indicate the stored codes. |
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#5 | |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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Quote:
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#6 | |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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Quote:
I thought I had it at first and was down to only code 32. Then I probed one of the weight sensors (still nothing!) and checked the codes again. Now I'm getting 32 and 55, but not 56. WTF? |
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#7 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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I'm getting stuck right at the beginning. The SRS light should come on solid after 3 seconds, but instead it comes on solid immediately after the jumper is disconnected.
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#8 | |
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aka Eleni
Drives: 10 Yaris LB Auto- Blazing Blue Join Date: Nov 2006
Location: Jersey
Posts: 204
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Quote:
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#9 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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If I do decide to sell the OEM passenger seat it will most likely be without the four weight sensors. I haven't made up my mind about getting rid of the OEM seats yet though. I want to get the new ones working 100% before I get rid of the old ones. I'll definitely keep you in mind though.
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#10 | |
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aka Eleni
Drives: 10 Yaris LB Auto- Blazing Blue Join Date: Nov 2006
Location: Jersey
Posts: 204
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Quote:
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#11 |
![]() ![]() ![]() ![]() ![]() ![]() ULTIMATEDrives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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You might want to try two jumpers, where you can leave them on the pins and then connect them while your hands are up in visible range of the display.
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#12 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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That's actually what I tried. I have one pin in each connector and am connecting the two with an alligator-clip wire but it's still tough. That aside, it doesn't seem to be going the way the directions indicate it should with the flashes, solids, etc.
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#13 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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Ok, trying your idea I'm 99% I successfully cleared the codes. Well, codes 55 & 56 are gone, but code 32 remains flashing.
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#14 |
![]() ![]() ![]() ![]() ![]() ![]() ULTIMATEDrives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Cool. At this point you must feel like your defusing a bomb.
Code 32 is the OCS. The issue right now is the lack of a base load on the sensors. They are calibrated for the weight of the empty seat. Are you still measuring no voltage on the sensors? |
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#15 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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I was measuring no voltage on the sensors with all the codes still flashing but I haven't tried it now with only code 32. Maybe they won't receive voltage if they don't sense any weight at all? The sensors are plugged into the system, but are just laying on the floor in the car.
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#16 |
![]() ![]() ![]() ![]() ![]() ![]() ULTIMATEDrives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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How about putting some pressure on each with a c-clamp or stacking them and using one clamp?
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#17 |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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#18 | |
![]() ![]() ![]() ![]() Drives: 2009 Yaris Hatchback Join Date: Feb 2009
Location: NJ
Posts: 792
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Quote:
![]() Also, there is a threaded hole in the side of each bracket which goes through the black button in the right of this pic. It looks like the bolt goes through the button and touches the metal body of the sensor. I'm not sure if it's providing some kind of ground, etc.
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