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Wife pulled up to a clients house and with no warning the Passat wouldn't start. I don't have VAGCOM, with a standard OBD 2 it's throwing a P0864. I tested the battery, checked all fuses and starter. The starter was bad. I replaced it. Still no response. Any ideas?
 

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Yes, I did remove the battery to charge it. My new starter is engaging but not cranking? The engine is free I check with a screwdriver on the flywheel...
 

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My Passat was showing P0864 too om OBDii. I instead bought a cheap XTOOL V401 from amazon and it turns out it it throwing that code on OBDii because the TCU isn’t recognizing the ECU. In fact, all other computers also were not communicating with ECU.
 
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