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It won't flash any if there aren't any to flash. It should at least flash code 12 when you use the test terminals. If it doesn't then you probably have a bad ECM. Make sure that you have power going to the ECM first. Most of the GM cars have a power wire running from the battery directly to the ECM. Make sure this is connected and the ECM fuse is good.
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What would cause the drive light to flash Honda Accord?
The primary cause for the drive light to flash on a Honda Accord is a malfunction in the transmission. Error codes from the vehicle's computer can be read using an OBDII reader.
Where would one get a flash banner maker?
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That would be a Hexadecimal code.
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What ccd message from tcm on cars means?
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