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P1850 Diagnostic Trouble Code Discussion for October 2012

Creep Aid System Solenoid Valve 'A' Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1850
Help Request Posted
2004 Volkswagen Passat GLX 2.8L No Start VIN: WVWRH63B94
P1850: Powertrain data bus missing message from ECU. ... opportunity to eat our lunch, and it GLADLY obliged us!!! Typical plugged heater core, and we removed the dash and installed a new heater core. All assembled, and No Start!! Vag-Com scan of all controllers gives us a P1850 No Response from Controller. I'm ...
October 25, 2012