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Old 06-24-2015, 11:11 AM
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Michael M
Michael M is offline
Join Date: Jan 2011
Location: northern Mississippi
Age: 66
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Default Re: How to Repair Relay Control Module (RCM) - (Mystery no Start)

I finally got a chance to pull the RCM. Under good magnification, two connections were very bad, and remainder were questionable. I remade those as instructed, reinstalled, and got - nothing. Battery voltage after sitting about 48 hours had dropped from about 13.3 to about 12.8.


I will replace the battery.


Other data points - no error messages, but I do get the check engine light. That seems expected since the key is on and the engine is not. The one odd one - temp is negative 36 F. It's nearly July in Mississippi.


I spent more time with a flashlight in engine bay, trunk, and dug under carpet and I still find no damaged wires, and no wiring insulation confetti.


Any solid input on what I can and cannot do with an OBDII reader would be very welcome. It's over an hour by trailer to the nearest dealer who will have the OBDIII device for this car.


More to follow. Don't look for it in the "for sales" yet!


Michael