Gurus need some help with both signal lights flashing fast
04-23-05, 09:44 AM
#1
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Gurus need some help with both signal lights flashing fast
before i begin this is the only thing i have found that was close to to my problem with no help. https://www.rx7club.com/2nd-generation-specific-1986-1992-17/left-turn-light-wont-work-311721/
ok here is my problem at first my left side was flashing fast. i replaced a blown bulb in the front (1156) the light now works in the front but still flashes fast. but not as fast as when the bulb was blown. so i replaced the left rear bulb for troubleshooting (1157). no help
note right side flashes normal
Yesterday i found now the right side was flashing fast checked the lights found the right front was blown relaced it (1156). now both sides flashes fast did the same procedure as the left side.
note there was corrosion in both front light assemblies. cleaned it out and put some dielectric grease. no help
from the cpu i do not have the ticking noise but checked it anyway the board looks good since i had it out resoldered the contacts. no help.
it seems like i lost resistance somewhere or advance auto to me to use the wrong bulbs.
i am open for suggestions
thanks
for the help
Al
ok here is my problem at first my left side was flashing fast. i replaced a blown bulb in the front (1156) the light now works in the front but still flashes fast. but not as fast as when the bulb was blown. so i replaced the left rear bulb for troubleshooting (1157). no help
note right side flashes normal
Yesterday i found now the right side was flashing fast checked the lights found the right front was blown relaced it (1156). now both sides flashes fast did the same procedure as the left side.
note there was corrosion in both front light assemblies. cleaned it out and put some dielectric grease. no help
from the cpu i do not have the ticking noise but checked it anyway the board looks good since i had it out resoldered the contacts. no help.
it seems like i lost resistance somewhere or advance auto to me to use the wrong bulbs.
i am open for suggestions
thanks
for the help
Al
Last edited by stock; 04-23-05 at 09:47 AM.
04-23-05, 10:51 AM
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Wow dude, that sounds like a serious electrical issue, but could be remedied with a simple change. Well, it seems that resistance in the line would cause fast flashing, and if flashing continues to occur after installing bulbs.... it may be the bulb manufacturer. Make sure the bulbs are the right type and contacts in bulb housing mate properly. No ticking in CPU is normal. It seems that you're on the right track with your trouble shooting. You may eventually have to change CPU if problem persists. Good Luck.
04-23-05, 03:18 PM
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Originally Posted by gtcar2
Wow dude, that sounds like a serious electrical issue, but could be remedied with a simple change. Well, it seems that resistance in the line would cause fast flashing, and if flashing continues to occur after installing bulbs.... it may be the bulb manufacturer. Make sure the bulbs are the right type and contacts in bulb housing mate properly. No ticking in CPU is normal. It seems that you're on the right track with your trouble shooting. You may eventually have to change CPU if problem persists. Good Luck.
i am still open for sugestions
04-24-05, 10:11 AM
#4
Former Moderator. RIP Icemark.
Okay... remedial RX-7 Electronics 101 again:
Any change in the resistance (up or down) will cause the CPU to flash that side fast. So increased resistance (from poorly maintainted bulb sockets- for example) or decreased resistance (from using LED bulbs- for example) will cause the CPU to think there is a problem with that circuit. Just for a note, you can not replace a 1156 bulb (tail light flasher) with a 1157 bulb- it changes the resistance _just like you can not replace a front turn signal (1157) with a 1156 bulb... again changes the resistance.
So, if you used some funky bulbs (like LED bulbs) or the wrong bulbs, it will cause the CPU to flash fast on that side. In addition, if you did not clean the bulb sockets, and use a little condutive grease (not dielectric grease- that would only increase the resistance) old sockets often have problems and will act like a increased resistance with a new bulb in there.
But lets go a step further since I am already typing all this out again.
If the turn signal lights are flashing fast on one side only, and work fine with the Hazard lights you have a bad bulb, bad bulb contact, or broken wiring on the side that is flashing fast.
If the turn signal lights are flashing fast on both sides, and the hazard has no effect then you have a bad CPU. It will need to be re-soldered or replaced (I have rebuilt CPU flasher boards available on my website).
And finally:
If you bump, the bumps will be deleted. Why do you think your question is more important than anyone elses???
Any change in the resistance (up or down) will cause the CPU to flash that side fast. So increased resistance (from poorly maintainted bulb sockets- for example) or decreased resistance (from using LED bulbs- for example) will cause the CPU to think there is a problem with that circuit. Just for a note, you can not replace a 1156 bulb (tail light flasher) with a 1157 bulb- it changes the resistance _just like you can not replace a front turn signal (1157) with a 1156 bulb... again changes the resistance.
So, if you used some funky bulbs (like LED bulbs) or the wrong bulbs, it will cause the CPU to flash fast on that side. In addition, if you did not clean the bulb sockets, and use a little condutive grease (not dielectric grease- that would only increase the resistance) old sockets often have problems and will act like a increased resistance with a new bulb in there.
But lets go a step further since I am already typing all this out again.
If the turn signal lights are flashing fast on one side only, and work fine with the Hazard lights you have a bad bulb, bad bulb contact, or broken wiring on the side that is flashing fast.
If the turn signal lights are flashing fast on both sides, and the hazard has no effect then you have a bad CPU. It will need to be re-soldered or replaced (I have rebuilt CPU flasher boards available on my website).
And finally:
If you bump, the bumps will be deleted. Why do you think your question is more important than anyone elses???
Last edited by Icemark; 04-24-05 at 10:16 AM.
04-24-05, 10:52 AM
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[
.
1st icemark thanks for the reply i was hoping you would be one of the people to answer me.
Icemark]Okay... remedial RX-7 Electronics 101 again:
Any change in the resistance (up or down) will cause the CPU to flash that side fast. So increased resistance (from poorly maintainted bulb sockets- for example) or decreased resistance (from using LED bulbs- for example) will cause the CPU to think there is a problem with that circuit. Just for a note, you can not replace a 1156 bulb (tail light flasher) with a 1157 bulb- it changes the resistance _just like you can not replace a front turn signal (1157) with a 1156 bulb... again changes the resistance.
2nd i followed the instruction of the auto store that told me the bulbs that belong into the said sockets. if it is wrong then can you tell me what bulb goes where.
if this has been covered please give me the thread to find it. note i am not using any leds everything is stock for an 89 convertible.
So, if you used some funky bulbs (like LED bulbs) or the wrong bulbs, it will cause the CPU to flash fast on that side. In addition, if you did not clean the bulb sockets, and use a little condutive grease (not dielectric grease- that would only increase the resistance) old sockets often have problems and will act like a increased resistance with a new bulb in there
3rd i see that you are constantly repeating yourself. when i read the other threads looking to see if anyone has had the same problem. i see alot of yes i searched maybe changing the search engine would help this problem.
But lets go a step further since I am already typing all this out again.
If the turn signal lights are flashing fast on one side only, and work fine with the Hazard lights you have a bad bulb, bad bulb contact, or broken wiring on the side that is flashing fast.
If the turn signal lights are flashing fast on both sides, and the hazard has no effect then you have a bad CPU. It will need to be re-soldered or replaced (I have rebuilt CPU flasher boards available on my website).
4th i have read in the past that not to bump your thread for atleast a day. this was written by you, and that is what i did . i do not feel that my question is anymore important than anyone else. but it is also not less important than anyone one else's question.
And finally:
If you bump, the bumps will be deleted. Why do you think your question is more important than anyone elses???[/QUOTE]
again thanks for your help on and off this website
Al
.
1st icemark thanks for the reply i was hoping you would be one of the people to answer me.
Icemark]Okay... remedial RX-7 Electronics 101 again:
Any change in the resistance (up or down) will cause the CPU to flash that side fast. So increased resistance (from poorly maintainted bulb sockets- for example) or decreased resistance (from using LED bulbs- for example) will cause the CPU to think there is a problem with that circuit. Just for a note, you can not replace a 1156 bulb (tail light flasher) with a 1157 bulb- it changes the resistance _just like you can not replace a front turn signal (1157) with a 1156 bulb... again changes the resistance.
2nd i followed the instruction of the auto store that told me the bulbs that belong into the said sockets. if it is wrong then can you tell me what bulb goes where.
if this has been covered please give me the thread to find it. note i am not using any leds everything is stock for an 89 convertible.
So, if you used some funky bulbs (like LED bulbs) or the wrong bulbs, it will cause the CPU to flash fast on that side. In addition, if you did not clean the bulb sockets, and use a little condutive grease (not dielectric grease- that would only increase the resistance) old sockets often have problems and will act like a increased resistance with a new bulb in there
3rd i see that you are constantly repeating yourself. when i read the other threads looking to see if anyone has had the same problem. i see alot of yes i searched maybe changing the search engine would help this problem.
But lets go a step further since I am already typing all this out again.
If the turn signal lights are flashing fast on one side only, and work fine with the Hazard lights you have a bad bulb, bad bulb contact, or broken wiring on the side that is flashing fast.
If the turn signal lights are flashing fast on both sides, and the hazard has no effect then you have a bad CPU. It will need to be re-soldered or replaced (I have rebuilt CPU flasher boards available on my website).
4th i have read in the past that not to bump your thread for atleast a day. this was written by you, and that is what i did . i do not feel that my question is anymore important than anyone else. but it is also not less important than anyone one else's question.
And finally:
If you bump, the bumps will be deleted. Why do you think your question is more important than anyone elses???[/QUOTE]
again thanks for your help on and off this website
Al
Last edited by stock; 04-24-05 at 10:56 AM.
04-24-05, 01:10 PM
#6
Former Moderator. RIP Icemark.
The bulbs you want are 1157 (dual filiments- dual contacts on bottom of the bulb) for the front, and 1156 (single filiment- single contact on bottom of bulb) for the rear.
From your first post it sounds like you have 1156 in the front, and 1157 in one of the rear.
From your first post it sounds like you have 1156 in the front, and 1157 in one of the rear.
04-24-05, 11:04 PM
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Originally Posted by Icemark
The bulbs you want are 1157 (dual filiments- dual contacts on bottom of the bulb) for the front, and 1156 (single filiment- single contact on bottom of bulb) for the rear.
From your first post it sounds like you have 1156 in the front, and 1157 in one of the rear.
From your first post it sounds like you have 1156 in the front, and 1157 in one of the rear.
i will recheck the cpu if i need one i'll give you a call
thanks
Al
