Thread: CEL U0074
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Old 03-24-2016, 11:21 AM   #2
Icecreamtruk
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Did you disconnected the OBDII bluetooth reader while the car was running? (or maybe wiggle it or hit it with your knee or something?) Because if you do it will throw a code. To avoid codes related to this, you can connect the reader with the car on, or off, doesnt matter, but only disconnect it while the car is off.
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