ZN 232 flasher not working in 1960 car
When I install the flasher in the car, it will not make the turn signals blink, but when I connect it directly to a 12V battery, I can hear it clicking. I can install an aftermarket flasher unit, and the turn signals blink as they should. Any suggestions on why the ZN 232 works when bench tested, but not in the car?
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Re: ZN 232 flasher not working in 1960 car
Joe - First of all, did the ZN232 ever work in the turn signal flasher system on your 60 and now if doesn't?
I'm not sure what connecting the flasher directly to the 12V battery tests; but if an after market flasher works the system, I hope that's a good sign. The ZN232 is a fixed load flasher designed for a 2 lamp turn signal system, i.e., 1 front lamp and 1 rear lamp. Is this the configuration of the lamps in the turn signal system of your 60?
What is the number of the aftermarket flasher and how many lamps is it designed to operate?
Based on my experience, since the system works with the aftermarket flasher, I'd say the that ZN232 has failed or that the ZN232 is not the appropriate flasher for your application.
Pete -
Re: ZN 232 flasher not working in 1960 car
Peter, I have one front lamp and one rear lamp. The aftermarket flasher I am using is an electronic unit designed to operate LED bulbs (I don't know any details about it). I have red LED bulbs in my tail lights and regular 1157 bulbs in the front lights.
I just hooked it up to a 12V battery and it does a slow "click-click." I assumed that meant it is working, but not when I install it in the fuse box. It just occurred to me that the ZN 232 might not operate the LED bulbs, so the front bulbs don't blink either. I will try it in another C1.Comment
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Re: ZN 232 flasher not working in 1960 car
Joe - I think you are correct in that the ZN232 won't work with the LED bulbs. PeteComment
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Re: ZN 232 flasher not working in 1960 car
joe, the ZN232 is a fixed load flasher as peter said it will not work on LED lamps it is designed for 2- 1034 lamps as pre 1963 corvettes take 1034 lamps not 1157s. kevinComment
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Re: ZN 232 flasher not working in 1960 car
I thought that 1157 was a modern equivalent for the 1034 (I have no idea where I came up with that). I have used 1157 bulbs in the parking lights/turn signals for as long as I can remember. Maybe that explains why the expensive 1157 LED bulbs would never fit into the parking lights; they would push in, but never lock into place; always twisted off the tops and then threw them away.
Since 1157 bulbs fit and function properly, is there an advantage to installing 1034 bulbs in the parking light fixtures?Comment
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Re: ZN 232 flasher not working in 1960 car
Here is a comparison between 1157 and 1034 bulbs (source: e-how.com)
Primary Filament Operation at 12.8 Volts- The primary filament is used for normal marker-lamp (the rear light that comes on when you turn on your headlights) operation. The 1157 lamp
can sustain 2.10 amps at 12.8 volts, and will last an average of 1,200 hours. The 1034 lamp can handle 1.80 amps at this voltage, and will last an average of 200 hours.
- The secondary filament is used for turn signal operations. The 1157 lamp can sustain 590 milliamps of electrical current at 14 volts, and lasts an average of 3,000 hours. The 1034 lamp lasts an average of 5,000 hours under these conditions.
- Since both lamps are used as combination turn-signal and marker lamps, choose the lamp that suits your needs best. If you do a lot of daytime driving and require a long-lasting signal lamp, install the 1034 lamp. If you do a lot of nighttime driving, and do not need to use your turn signals often, choose the 1157 lamp.
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- The primary filament is used for normal marker-lamp (the rear light that comes on when you turn on your headlights) operation. The 1157 lamp
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Re: ZN 232 flasher not working in 1960 car
The 1034 lamps came in all 12 volt corvettes pre 1963 and the 1958-60 corvettes came with the ZN232 flasher witch is fixed load for 2-1034 lamps it will not flash at the correct speed with the 1157 lamps(different candle power) KevinComment
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Re: ZN 232 flasher not working in 1960 car
Kevin, thanks for explaining the major difference between 1034 and 1157, flasher speed. I will change out the front 1157s and install 1034s. However, the electronic flasher that is required for the LED bulbs I installed in the tail lights will probably dictate the speed that the 1034s flash.Comment
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