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Tech 2 Reflashing Error E4399
Good morning everyone, I am attempting to reflash the vehicle listed and getting an error message E4399 (severe error reading ECU data). I am attempting to reprogram the PCM and get the error message after selecting ECM/PCM > next. At that point it brings me b... Login to read more. 
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14 Replies Received
14 Replies Received
| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2006 Chevrolet Silverado 1500 LT 5.3L
| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
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