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  #1  
Old 04-08-2010, 07:41 PM
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Arrow Need coding resistor for cruise

Need coding resistor #005 545 46 32 for the cruise on my 87 300td.its the little black unit that plugs into the cruise amp, anybody got one? PM with price, i would really like to have a working cruise! Don
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Old 04-09-2010, 11:32 PM
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I think I might still have one of those. I'll check in the garage in the morning.
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Old 04-10-2010, 08:55 AM
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Questions

What does the coding resistor do? Can the coding resistor be replaced and will it upgrade the amp so that the amp will work on other models? I have some amps that have coding resistors and I have always wondered. thank you jim
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Old 04-10-2010, 10:43 AM
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Jim In my case (87 300td) still had the original amp that is no longer available that had no coding resistor only the 14 pins that the wire harness plugs into.The replacement amp which has the 14 pins + the place to plug the coding resistor in.The new amp applies to many models and the coding resistor is car specific,my guess would be that to reduce the number of different amps they had to build some smart engineer figured out that they could make one amp work for many cars by changing what is a relatively inexpensive part.When you replace the amp in a car that has the newer type amp you just use the coding resistor that was already in the car,however in my case i have an amp that has the correct p/n for my car that came from a gasoline car and my old amp was the type that did not use the coding resistor i do not have the correct one for the 124 with 603engine. I was not able to put part numbers in this post as i am not at home,but if you neeed them drop me a pm.

Adam
I am sure hoping you have one, please let me know when you find out. TIA Don
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Old 04-10-2010, 11:57 AM
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Heh, I just found a gasser cruise exactly like yours. Did the dealer not have it?
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Old 04-10-2010, 07:04 PM
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I wonder if it can be taken apart... the manual has a table of resistance values but "46 32" is not on there.
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Old 04-10-2010, 09:40 PM
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Perhaps, but that's the coding plug on my '87 TD and it works well.
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Old 04-10-2010, 10:02 PM
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Well the hope was to mod the gasser one to match the desired values, but with the desired values unknown that's not possible.
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Old 04-10-2010, 10:05 PM
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I'd probably run with a gasser one and see how it goes, probably just a difference in throttle position delta / gain.
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