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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Occasional flashing Immobilizer LightViews : 633 Replies : 6Users Viewing This Thread : |
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Jun 1st, 2019, 21:25 | #1 |
Premier Member
Last Online: Jan 3rd, 2024 14:43
Join Date: Feb 2012
Location: Toronto Canada
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Occasional flashing Immobilizer Light
Alright, I’m getting very annoyed at my V40. I’m regularly getting a flashing immobilizer light when attempting to start the car. When this happens engine will not turn over. Eventually if I turn ignition on and off enough times it will start but it’s only a matter of time before I get stranded somewhere.
Has this happened to any of you? So far I have: 1- cleaned contacts on ECM and immobilizer midlife 2- replaced immobilizer module with a used on from wreckyard 3 - unplugged replugged all ecm connectors to make sure all snapped back in. Any suggestions?
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2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
Jun 3rd, 2019, 18:43 | #2 |
Premier Member
Last Online: Jan 3rd, 2024 14:43
Join Date: Feb 2012
Location: Toronto Canada
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also replaced CEM with a wreckyard version...no difference.
__________________
2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
Jun 5th, 2019, 00:29 | #3 |
Premier Member
Last Online: Jan 3rd, 2024 14:43
Join Date: Feb 2012
Location: Toronto Canada
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Replaced the immobilizer ring today...time will tell. I would have replaced that first but for whatever reason I did not think the ring could be replaced separately on the V40. We’ll see how I fair.
__________________
2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
Jun 5th, 2019, 14:09 | #4 |
New Member
Last Online: Jun 10th, 2019 15:58
Join Date: Jun 2019
Location: Kikinda
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I have the same problem, but for some reason when is cold weather that is not happening, but over the sumer it is a nightmare.
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Jun 8th, 2019, 00:10 | #5 | |
Premier Member
Last Online: Jan 3rd, 2024 14:43
Join Date: Feb 2012
Location: Toronto Canada
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Quote:
Day 3...no flashing immo light...dare I declare success?
__________________
2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
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Jun 11th, 2019, 00:01 | #6 |
Premier Member
Last Online: Jan 3rd, 2024 14:43
Join Date: Feb 2012
Location: Toronto Canada
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still not flashing light...I'm declaring success!!!! Immobilizer ring, it was!
__________________
2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides |
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