Old Oct 24, 2012 | 10:44 PM
  #404 (permalink)  
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msheredy
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Joined: Dec 2006
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From: San Diego, CA
Default Re: How to Repair Relay Control Module (RCM) - (Mystery no Start)

Originally Posted by WaltChamberlin
There was A LOT of corrosion around the negative battery terminal (neglect on my part!)!
Don't be so sure on the neglect as I had lots of corrosion too. I happened to notice a hairline crack in the battery's plastic case at the neg terminal so I'm sure some juices were seeping out and causing it.

I ended up going with Needswings small battery and it's been great.

Word to the wise though, when using baking soda to clean the terminals remove all hardware cause that chit will gum up and seize the bolt/nut that holds the terminal. I got way lucky and was able to remove the nut but I spent the next 30 mins with an xacto cleaning out the threads of the bolt and nut.

Originally Posted by MrMiata
CPS car will spin till battery is dead. RCM... pretty much your symptoms..possible joint has enough connection to hit the starter and heats up enough from current draw to break the connection. When I first joined the forum and read about the RCM it was priority one to pull mine and check. Car history at dealer shows it had been in for electrical, and based on seeing mine I believe it had been replaced.
My fingers are crossed but I won't know until tomorrow when I get to work (where I had to leave my car) whether or not this fixes it. Just incase, and because I had nothing else better to do, I picked up a CPS too LOL!
 
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