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PCM Relearn procedure
Greetings again. I am replacing a PCM on an 03 Chevy Avalanche and it was mentioned that I could do the 30 minute PCM re-learn with a scan tool in five minutes or so. I’ll be using a Snap-on Veris and I would like to know the procedure please. I’ve been lookin... Login to read more. 
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| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | No Start |
Vehicle Data
2003 Chevrolet Avalanche 1500 5.3L No Start
| Engine | 5.3 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | No Start |
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