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RESOURCE That Mystery Check Engine Light- Lamp Driver Repair Information For CCC Cars 2023-08-15

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GP403

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That Mystery Check Engine Light- Lamp Driver Repair Information For CCC Cars - If you have a CCC G-body car, you have this. From what I understand, it takes a 5V signal....


This discussion came up on another forum, and some good information came from it. Figured I'd share some findings here on this mystery lamp driver. If you have a CCC G-body car, you have this. From what I understand, it takes a 5V signal from the ECM and also boosts it to 12V to light the CEL when warranted. Basically, if the ECM loses its ground with...

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