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Discussion Starter #1
Hi all, I have a 3 doors accent crdi 1.5 and I'd like to ask you how to diagnose the issue with the upper 3rd brake light no longer working.
May it be caused by some wiring failure for the continuous opening closing of the rear trunk? I already did some fix on wiring on the upper left housing due to opened trunk signalling symbol on the dashboard. But if this is not the case just wanted to know if is there some tutorials on how to replace the led bar itself and the part code I need to find as replacement.

Really appreciate any help.

Thanks in advance
 

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If you have a multimeter check the voltage going to the light. Your comment about the wiring is a common cause on may cars.
 

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Drives : Nissan NV200 Flies : Rans S6ES
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I think you need to remove the tailgate spoiler to replace the 3rd brake light, or to test it's power supply & ground.
Part number for the lamp : 92700-1E200
 

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Discussion Starter #4
Hi guys, thanks a lot for your help! I've managed to remove the wiring plastic shell on the trunk this morning, no damaged wires seems there. I've instead spotted a little opening in the bottom housing for the brake light itself that I think exposed the inner part to water, really don't know if there was some kind of gasket plug there to avoid exposure to external environment. I can see lot of dirt inside the red housing plastic, I think it flew inside most of the time when I washed my car with high pressure water at washing centers. I've seen that the part costs almost 100€ and I'm wondering if I can make a workaround using led strips and modding the damaged light itself, do you know the voltage that is available at the power plug for this stop light? It should be 12v. Haven't removed it yet and sincerely do not know if this kind of thing is possible, I mean if leds are accessible in the plastic brake housing and is possible to insert third party leds to power with existing cable.
 

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Discussion Starter #7
Hi guys, thanks a lot for your help! I've managed to remove the wiring plastic shell on the trunk this morning, no damaged wires seems there. I've instead spotted a little opening in the bottom housing for the stop light itself that I think exposed the inner part to water, really don't know if there was some kind of gasket plug there to avoid exposure to external environment. I can see lot of dirt inside the red housing plastic, I think it flew inside most of the time when I washed my car with high pressure water at washing centers. I've seen that the part costs almost 100€ and I'm wondering if I can make a workaround using led strips and modding the damaged light itself, do you know the voltage that is available at the power plug for this stop light? It should be 12v. Haven't removed it yet and sincerely do not know if this kind of thing is possible, I mean if leds are accessible in the plastic brake housing and is possible to insert third party leds to power with existing cable.
You need to make sure the LED you use works with 12 volts and if not you need a dropping resistor.
You need to make sure the LED you use works with 12 volts and if not you need a dropping resistor.
Is there that connector info
You need to make sure the LED you use works with 12 volts and if not you need a dropping resistor.
HI is there available the connector info for this 3rd brake? I mean wondering if there is need to wire not only +/-12v for this brake but there is also some other signal that goes there and needs to be wired to a third party led strip designed for automotive use
 

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It's just a brake light. It will have a connector with two wires, power supply and ground. Ground will likely be a black wire.
 

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Discussion Starter #9
Hi someone has idea of this thing purpose? It's on the bottom of the brake housing
442690
 

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Discussion Starter #12
Hi still have to fix that.. ****...no time till now... Anyway I've found another discussion in this forum in which there is written that the leds are completely embedded into the plastic housing and so there is need to cut the plastic to access them... This is something I have not considered before... I just wanted to replace faulty leds with cheap led strip but there is danger to brake the housing while attempting to remove the original led strip this would be very bad... Does anybody know if the job is possible? Remove and replace leds in the spoiler housing with a different cheap one? Thanks a lot for your help!
 

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Does anybody know if the job is possible? Remove and replace leds in the spoiler housing with a different cheap one?
I'm sure it's possible, but is it worth all the effort for a £30~40 lamp unit.
And it probably isn't even the LEDs themselves that have failed. There are about 20 LEDs in that lamp and it seems highly unlikely that all of them would fail and all at the same time.
 

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Discussion Starter #14
Yeah indeed need to check voltage up there if it still reaches the light before going to modify anything.. Thanks for the help!
 

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Discussion Starter #15
I'm sure it's possible, but is it worth all the effort for a £30~40 lamp unit.
And it probably isn't even the LEDs themselves that have failed. There are about 20 LEDs in that lamp and it seems highly unlikely that all of them would fail and all at the same time.
Hi! you were right! just checked the connector while brake pedal was pressed, and there is no voltage there! so seems that there must be some broken wire down there.... the problem now is how can i see a diagram or scheme in order to correctly spot which wire i have to check? seems that connector for third brake is wired with a green/black pair....
 
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