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Chrysler 300M
Chrysler 300M TSB #070100
Chrysler 300M TSB #070100
8 messages,
Last post on Aug 23, 2009 at 3:50 AM
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Chrysler 300M, Engine, Sedan
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Re: Cruise Control Problems Chrysler 300M [martypyeatt]
by martypyeatt
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Aug 01, 2009 (12:58 pm)
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Replying to: martypyeatt (Jun 05, 2009 1:47 pm)
I replaced the brake switch at the brake pedal and that fixed the cruise control problem. It cost $20.00 at a Chrysler Dealer that was still in business.
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- #8 of 8
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Re: Cruise Control Problems Chrysler 300M [martypyeatt]
by iherbivore
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Aug 23, 2009 (3:50 am)
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Replying to: martypyeatt (Aug 01, 2009 12:58 pm)
I can confirm this. Condition existed on my vehicle. I inspected. Found that the brake switch is comprised of three separate switches. One of the switches is normally closed when the brake pedal is released. An ohmmeter on this switch showed a resistance of 1-2 ohms when closed. Removing the large cover over the electrical connectors gave access to the actual contacts for the switches, at which point I found a considerable amount of material transfer between the two posts of the troubled switch. Gently filing the posts restored a 0 ohm connection when switch is closed, and cruise control now works again. I am uncertain how long this repair will last, but the simplicity of the repair makes it worth an attempt to save $20.
edit: If you try this repair there is one thing to note: When putting the switch back together, the plunger must be held about half way in. Take a look at it, you'll see why.
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Chrysler 300M TSB #070100