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3rd Gen Speedometer cable / VSS issues

 
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Old 04-13-2016, 01:54 PM
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3rd Gen Speedometer cable / VSS issues

I have a 3 gen automatic trans SI. The tip of the speedometer cable that goes into the VSS in the tranny broke. I fished the tip out with a tweezer. My cable is the two piece cable. All the Honda cables have been discontinued (78412-SF1-013 - the entire cable assembly; the upper portion 78413-SF1-A02; and lower cable 78412-SF1-013). The only after market cables seem to be one piece cables: the ATP Y-915 and the Nappa BK 6151695.

Has anyone used the ATP Y 915 or the Napa cables?

My speedometer and odometer don't work; the S3 light blinks; the transmission won't shift gears on its own. Took it to a transmission shop and they said it was the VSS.
The VSS on the 89 is not on the transmission but in the instrument cluster (or at some point after the cluster). Appears the VSS in the transmission is only a mechanical part and hooks up to the VSS through the Speedometer cable.
I assume replacing the cable will fix the issues above.
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Old 04-13-2016, 02:05 PM
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Re: 3rd Gen Speedometer cable / VSS issues

It's likely that replacing the cable will remedy the other issues you are having. I know someone who has used a replacement one-piece cable in their fuel injected 3rd gens. It's a simple speedometer cable, it doesn't matter if it's one-piece or two.

Interestingly, the carbureted 3rd gens (S models) used a one-piece speedometer cable from the factory. Not sure why fuel injected models got two-piece cables, while carbie ludes had one-piece cables.
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Old 04-13-2016, 02:18 PM
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Re: 3rd Gen Speedometer cable / VSS issues

Thanks for the quick response. It was from reading one of your posts on another thread that helped me figure out that my issues were most likely cable related. Won't have to worry about trying to get the Mechanical VSS out the transmission.
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Old 04-30-2016, 10:15 PM
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Re: 3rd Gen Speedometer cable / VSS issues

I put in a new speedometer cable. Speedometer and odometer work, but auto trans does not shift properly. The RPMs surge very high before shifting.
I reset the ECU and TCU (at least I think I did: turned key on, put gas to floor, turned key off, let up on gas, turned key to on and waited 5 minutes, then started car).
Do I need to drive it awhile, reset it numerous times, or look for another VSS to solve the transmission shifting issues?

Last edited by mojo430; 05-01-2016 at 06:03 AM.
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Old 05-02-2016, 12:00 AM
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Re: 3rd Gen Speedometer cable / VSS issues

The only way to reset the ecu is to either disconnect the battery or pull the clock fuse (engine bay fuse box). What you described doing will not reset the ecu.

Sorry, I can't really help you with the transmission issue. I have only owned 5-speed preludes and have no experience with the auto gearbox. If resetting the ecu doesn't help I'm not sure what you need to do next. Perhaps the online service manual has some troubleshooting steps you can follow.
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Old 05-02-2016, 10:01 AM
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Re: 3rd Gen Speedometer cable / VSS issues

Forgot to mention, I did disconnect the battery first, took out the clock fuse and the ECU fuse. The only codes I get now are 12 (exhaust)and 14 (electronic idle control). There is now no code for 17 (VSS). But, car doesn't shift properly.
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Old 05-02-2016, 10:09 AM
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Re: 3rd Gen Speedometer cable / VSS issues

Does anyone know if a bad alternator can cause the transmission not to shift? I believe my alternator is bad and maybe this is why the car won't shift after replacing the speedo cable.
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Old 05-02-2016, 10:55 AM
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Re: 3rd Gen Speedometer cable / VSS issues

I seriously doubt the alternator is the cause of your transmission issues. One thing that you should check out is to make sure your shift cables are not messed up somehow. They are located in the same general area that the speedometer cable connects to the transmission, and it's possible that you knocked something loose when you replaced the speedo cable.

Again, no experience with auto transmissions here, but I would take care of the trouble codes you have before tackling the transmission issue. Is it possible that those codes are causing the tcu to run in some kind of limp mode? Just throwing that out there.
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Old 05-10-2016, 11:31 PM
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Re: 3rd Gen Speedometer cable / VSS issues

Sorry, the at shift cable is not near the vss, it is on the bottom rear of the at. The first thing I would have done would have been to check fluid level with engine off, car on flat ground. Also smell fluid for burning and check coloration. You likely have something else going on but start at the begging not the middle.
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Old 05-11-2016, 07:20 PM
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Re: 3rd Gen Speedometer cable / VSS issues

In the beginning I took it to a transmission shop who told me it was the VSS. The fluid level is fine.

It does shift on its own. The problem is that it is late in shifting. It does shift into 2nd on its own, but very late, after the RPMs go way up. It down shifts fairly regularly. The shifts between gear are fairly smooth.
If I start out in D, and then shift into 2nd, it immediately and smoothly shifts into 2nd. If I then shift back to D, it immediately and smoothly shifts into 3rd.
There are no codes from the AT computer. From the engine computer there is only a code 12 now (which I assume is for something EGR valve).
I unhooked a connector for one of the solenoids to see if it would activate the AT computer and the corresponding code did appear. Once I reconnected the solenoid the code disappeared. So, it may not be the AT computer.
I do wonder if it may be the TPS. Or that the transmission or transmission computer is not getting accurate information about how fast the car is going, so that it does not get accurate info about when to shift.
The shop manual seems to indicate that the symptoms described may be caused by some electrical issue.
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Old 05-12-2016, 10:17 AM
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Re: 3rd Gen Speedometer cable / VSS issues

Check the cable from the tb to the front of the trans and adjust per service manual. This is your throttle possition cable for the at, commonly mis-called the kick-down cable.
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