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B1001 Diagnostic Trouble Code Discussion for January 2010

vats passcode mismatch

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Trouble Ticket Help Requests for DTC B1001
Help Request Posted
2004 GMC Yukon Denali 6.0L MIL Lamp on, SIR Inoperative VIN: 1GKEK63U64
B1001: vats passcode mismatch. ... the BCM and IPC on this pig. Used Mastertech VCI to reprogram and everything took fine. No-start due to the mismatch in the passcode for the vehicle antitheft (VATS). Followed the service manual to perform a VATS relearn using the manual procedure (Tech 2 ...
January 16, 2010