Top not working
#16
Moderator
Next test: while sitting in the car with the door closed. Start the car, move the window manually, now, WITHOUT opening the door, shut off the car, try to move the window up and down. The ECU supplies power to the switch and then the regulator for about 30 seconds after the ignition is turned off IF the door is not opened.
If it doesn’t work it’s another indicator of a potential ECU issue, but it could be continuity or wiring issues too. Which points us back to proprietary DTC codes, which begin at “B1211” and go all the way up to “B2555”. The codes are pretty good pointing out the problem. The good news is these are plug n play component(s) for the most part once the fault is identified. Just labor to get to them.
If it doesn’t work it’s another indicator of a potential ECU issue, but it could be continuity or wiring issues too. Which points us back to proprietary DTC codes, which begin at “B1211” and go all the way up to “B2555”. The codes are pretty good pointing out the problem. The good news is these are plug n play component(s) for the most part once the fault is identified. Just labor to get to them.
Last edited by VVTiBob; 01-29-18 at 08:01 PM.
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tiguy99 (01-30-18)
#17
More info please
Could you please tell us more about your car... .mileage ... daily driver ... problems....year bought and price...where where and how did you find out about these amazing vehicles;...thanx from an obsessesessedd sc430 owner ;;;
#18
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OK so I tried the window up and down 3 times, no change. The windows do go all the way down and all the way up. Also after the car is turned off, with the key still in, the windows won't operate at all. This would be just after turning the ignition off and trying to operate the windows.
I've had the car for a couple years, not really a daily driver. It has 105k on it, I've only put 5k on in the time I've had it.
I've had the car for a couple years, not really a daily driver. It has 105k on it, I've only put 5k on in the time I've had it.
#19
Moderator
Ok go back to post #8 I added a second procedure to try. But with the window not working after the ignition is turned off, not working from the key fob or the outside door lock, it’s pointing to wiring and/or DOOR ECU(s) problems. The best way to ID the issue is the get the proprietary DTC Lexus trouble codes and that means a dealer or someone with Techstream and TIS for solutions.
Last edited by VVTiBob; 01-30-18 at 02:44 PM.
#22
Moderator
Well there are a number reasons in no particular order:
1. Open/Close switch on the air conditioning control panel has failed
2. Disconnected/shorted wire harness
3. Sliding Roof ECU failure
4. CAN bus communication failure
I have some concerns about the wiring since OP mentioned radio change and “they hacked the wiring for that.” I don’t know what was done or how bad. But as I mentioned before, getting the proprietary DTC touble codes should point out the trouble area.
1. Open/Close switch on the air conditioning control panel has failed
2. Disconnected/shorted wire harness
3. Sliding Roof ECU failure
4. CAN bus communication failure
I have some concerns about the wiring since OP mentioned radio change and “they hacked the wiring for that.” I don’t know what was done or how bad. But as I mentioned before, getting the proprietary DTC touble codes should point out the trouble area.
#23
Well there are a number reasons in no particular order:
1. Open/Close switch on the air conditioning control panel has failed
2. Disconnected/shorted wire harness
3. Sliding Roof ECU failure
4. CAN bus communication failure
I have some concerns about the wiring since OP mentioned radio change and “they hacked the wiring for that.” I don’t know what was done or how bad. But as I mentioned before, getting the proprietary DTC touble codes should point out the trouble area.
1. Open/Close switch on the air conditioning control panel has failed
2. Disconnected/shorted wire harness
3. Sliding Roof ECU failure
4. CAN bus communication failure
I have some concerns about the wiring since OP mentioned radio change and “they hacked the wiring for that.” I don’t know what was done or how bad. But as I mentioned before, getting the proprietary DTC touble codes should point out the trouble area.
#24
Pole Position
I think the red light is an indicator that something is wrong that you can fix.
I think no light/no action is due to a failure in the self check of the system.
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Jksc (06-14-19)
#25
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Hello. I've got 2006 model and my top stopped opening. I got the car 3+ years ago. The windows go down and the trunk retreats but the top doesn't move back. I followed most of the advises here and finally took it to the dealer and they gave me the code of BY001 (LR Link Assy for Hard top) with an estimate of almost $5K including the replacement of the part 63022-24010 (Strength Sub-Assy, R).
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
#26
Moderator
Hmmmm...propriety roof codes are B2501 to B2554 https://www.clublexus.com/forums/att...of-dtcs001.pdf. So the first thing is to get clarification on the code. Maybe one of our members with a 2006 or newer can chime in if there are newer codes I’m unaware of.
If the hinge is done, as mine was, that is a valid quote. Fortunately mine was 100% covered under an extended warranty.
If the hinge is done, as mine was, that is a valid quote. Fortunately mine was 100% covered under an extended warranty.
Last edited by VVTiBob; 06-11-19 at 07:03 PM.
#27
Lexus Test Driver
Hello. I've got 2006 model and my top stopped opening. I got the car 3+ years ago. The windows go down and the trunk retreats but the top doesn't move back. I followed most of the advises here and finally took it to the dealer and they gave me the code of BY001 (LR Link Assy for Hard top) with an estimate of almost $5K including the replacement of the part 63022-24010 (Strength Sub-Assy, R).
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
https://www.ebay.com/itm/LEXUS-02-10...ry!32955!US!-1
#28
Pole Position
Hello. I've got 2006 model and my top stopped opening. I got the car 3+ years ago. The windows go down and the trunk retreats but the top doesn't move back. I followed most of the advises here and finally took it to the dealer and they gave me the code of BY001 (LR Link Assy for Hard top) with an estimate of almost $5K including the replacement of the part 63022-24010 (Strength Sub-Assy, R).
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
I love the car and I'm hoping if there is any other way besides the dealer to fix it. I live in Denver, CO. Thanks in advance.
Usually if they say it is a hinge problem, they says they need to replace both hinges and it is $3500-ish. I think their theory is that if one motor wears out, that means all of the motors are close to their end of life.
I think that is the way to go, but you don't have to go to the dealer. If you call an independent Lexus Repair shop, they may be willing to tackle the job for you.
You can buy a matching pair of 06 hinges from these guys for about $430. It took me about 6 hours to replace mine.
https://www.ebay.com/itm/06-SC430-DR...ry!85012!US!-1
https://www.ebay.com/itm/06-SC430-DR...af91fc3a643d8e
It is a little time consuming, but not hard
https://www.clublexus.com/forums/sc4...etty-easy.html
#29
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Hmmmm...propriety roof codes are B2501 to B2554 https://www.clublexus.com/forums/att...of-dtcs001.pdf. So the first thing is to get clarification on the code. Maybe one of our members with a 2006 or newer can chime in if there are newer codes I’m unaware of.
If the hinge is done, as mine was, that is a valid quote. Fortunately mine was 100% covered under an extended warranty.
If the hinge is done, as mine was, that is a valid quote. Fortunately mine was 100% covered under an extended warranty.
#30
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I would go this route...$5k is outrageous.
https://www.ebay.com/itm/LEXUS-02-10...ry!32955!US!-1
https://www.ebay.com/itm/LEXUS-02-10...ry!32955!US!-1