DB9 Conv Roof Module Replaced: Still Not Working
Discussion
Hello, all...
I have an '06 DB9 Volante. I began to have the classic CRM failure problems about a month ago (spastic gauges and turn signals; no brake lights; paddle failure; roof failure).
1) I removed the CRM and all functions except the roof returned to normal, except for the boot not opening.
2) I ordered a replacement CRM (brand new, latest version) and installed it. All non-roof functions worked fine and the boot worked properly. The roof still wouldn't work, so I assumed that I needed a re-flash.
3) Took the car to the nearest AM dealer (a 3.5 hour drive) for a re-flash.
4) Like an idiot, didn't try the roof before leaving the dealer. Got home and the roof still didn't work.
5) Checked the pump and CRM fuses...both fine.
I'm ASSUMING that the technician would have known if the re-flash didn't "take." I'm also assuming...perhaps incorrectly...that if I didn't have the harnesses and plugs properly connected to the new CRM that the re-flash wouldn't have registered.
Any thoughts? The service manager at the dealer said he didn't know if the technician checked the roof function before releasing the car back to me.
I'm probably going to take the new CRM out and put the old one back in to see if there's any change (the original problems typically occurred on hot days after the car had been running for a while). It's a fairly miserable job, however, as the left-rear wheel well cover has to come out and the wiring loom is too short to allow the unit to be removed and reinstalled without a struggle.
Thanks.
I have an '06 DB9 Volante. I began to have the classic CRM failure problems about a month ago (spastic gauges and turn signals; no brake lights; paddle failure; roof failure).
1) I removed the CRM and all functions except the roof returned to normal, except for the boot not opening.
2) I ordered a replacement CRM (brand new, latest version) and installed it. All non-roof functions worked fine and the boot worked properly. The roof still wouldn't work, so I assumed that I needed a re-flash.
3) Took the car to the nearest AM dealer (a 3.5 hour drive) for a re-flash.
4) Like an idiot, didn't try the roof before leaving the dealer. Got home and the roof still didn't work.
5) Checked the pump and CRM fuses...both fine.
I'm ASSUMING that the technician would have known if the re-flash didn't "take." I'm also assuming...perhaps incorrectly...that if I didn't have the harnesses and plugs properly connected to the new CRM that the re-flash wouldn't have registered.
Any thoughts? The service manager at the dealer said he didn't know if the technician checked the roof function before releasing the car back to me.
I'm probably going to take the new CRM out and put the old one back in to see if there's any change (the original problems typically occurred on hot days after the car had been running for a while). It's a fairly miserable job, however, as the left-rear wheel well cover has to come out and the wiring loom is too short to allow the unit to be removed and reinstalled without a struggle.
Thanks.
Edited by Zuman on Saturday 2nd July 17:02
Update:
Today I removed the new CRM and re-installed the old one. The car was cool and in my garage.
1) The roof operated properly, as did all other functions. This was not a total surprise, as the original CRM fault was intermittent and seemed to correspond to high temperature conditions.
2) As the old CRM was unreliable and failed often, I removed it again and reinstalled the new CRM.
3) After reinstallation of the new CRM, the roof no longer operated.
I assume that this means that the re-flash performed by the dealer was not successful.
Today I removed the new CRM and re-installed the old one. The car was cool and in my garage.
1) The roof operated properly, as did all other functions. This was not a total surprise, as the original CRM fault was intermittent and seemed to correspond to high temperature conditions.
2) As the old CRM was unreliable and failed often, I removed it again and reinstalled the new CRM.
3) After reinstallation of the new CRM, the roof no longer operated.
I assume that this means that the re-flash performed by the dealer was not successful.
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