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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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ECU not diagnosingViews : 395 Replies : 3Users Viewing This Thread : |
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Oct 2nd, 2019, 15:24 | #1 |
New Member
Last Online: Nov 7th, 2023 07:38
Join Date: May 2019
Location: Kaunas
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ECU not diagnosing
Hello,
For some reason ECU cannot be diagnosed, and there is permanent fault in CEM about this. But the weird thing is, CEM also stores permanent fault about not communicating with SWM, eventhough it is diagnosing. So wondering if there could be something wrong with CEM or something else? Info about car: 3.2l fwd. Cem was replaced Ecu was replaced Supply to ecu ok Gnd to ecu ok Can signals to ecu ok Thanks |
Oct 2nd, 2019, 17:48 | #2 |
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Last Online: Mar 20th, 2024 18:26
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Location: Cross Country
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Now you need to report what VIDA says
If you don't have VIDA, now is the time to get it.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
Oct 4th, 2019, 08:46 | #3 |
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Last Online: Nov 7th, 2023 07:38
Join Date: May 2019
Location: Kaunas
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Might be a good idea 😀 but right now i only have launch diag.
Okay so what i figured out is that i have no idea how volvo communications work 😀 Have in mind that ecu replaced is with same code as original, but from xc60 not from xc90. When doing automatic vehicle health report with launch, ecu cannot be diagnosed. When choosing manualy xc90 and selecting ecu, it cannot be diagnosed. When manualy choosing xc60 and selecting ecu, ecu can be diagnosed. So my question is, do i need to reprogram ecu so its reacognized as xc90 and not xc60? Or it shouldnt make a difference? Thanks! |
Oct 4th, 2019, 12:12 | #4 | ||
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Last Online: Mar 20th, 2024 18:26
Join Date: Jan 2016
Location: Cross Country
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You do not have the right tools to do what you need to do
Quote:
Quote:
Everything else is irrelevant. Get a proper ECU.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
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