A new low for team doorhandle!! (Speedo fix)

[tmb]

dude, you're a star.  i've taken my instrument
cluster apart once already according to the SJM
instructions, and had no luck locating any broken
connectors anywhere.  

my 200 has gone from bobbing speedo needle to no
speedo needle.

i look forward to the forthcoming pictorial so i
can address this problem (hopefully) once and for
all.

jason
tmb


> Ok so my speedo has been down for a little
> while now and it's been driving me batty trying
> to fix it. I checked the sensor, then followed
> the procedure in the Bentley which ends with
> checking continuity between two wires leading
> into the cluster (backprobing with the
> connector pluged in). If 0 ohm then bad
> cluster, otherwise repair break in wiring. I
> got a high ohm reading, so I went searching for
> hours with wiring diagrams leaving me with half
> the dash taken apart to get to the autocheck
> computer and the 14pin connections in the
> drivers footwell, but everything checked out
> fine so I gave up for a few weeks. 
> 
> I decided today that it just HAD to be in the
> cluster, so I pulled the cluster and started
> tracing the printed circuitry there and found
> the culprit. This is a good one guys. Drumroll
> please.....
> 
> .......
> 
> 
> ........
> 
> The effing parking brake warning bulb circuit
> had a small break in it and the speedo runs a
> ground through it. A bit of wire soldered
> between the bulb socket and the corresponding
> diode fixed me right up. I need to pull the
> cluster again sometime soon to go after
> something else, so I'll take pictures of the
> fix. Once I do that I'll post to the knowladge
> base.
> 
> That beats the license plate bulb ground for
> the cluster lights in my book.
> 
> -Cody Forbes
> http://www.5000tq.com
> '86 5k noT noQ
> '86 5k noT noQ - Parting Out
> '87 5ktq
> '87 5ktq - Fast. Really Fast. (Now I can even
> SEE exactly how fast)
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> 


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