asd relay clicking,no crank,help
99 300m no crank,asd relay clicking,checked for a code,didn't get a actual code number but the scanner said ,,,,single board engine controller communication bus failure, ,has anyone here seen this or knows what it means,,I replaced the pcm a yr ago(aftermarket),any info would help,,thanks
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possible pcm possible wire issue the BUS is a commutation network to allow all the computer to talk to each other.
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Correct,I understand what the bus does,I did get a schematic of the wiring and unplugged every sensor and switch involved w that com connector,yet the relay continues to click,I'm wondering if it would be worth a few bucks to hit a junkyard and pickup a use pcm and plug it in just to see if the clicking goes away,
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do you have a gray key?
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Originally Posted by CHRYSLER TECH
(Post 87884)
do you have a gray key?
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prob the pcm is faulty it is a remain unit. and unless you have a real good scanner things like a skim code will not show up.
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