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P1633 Diagnostic Trouble Code Discussion for July 2010

TCM Internal - Test External Watchdog Performance

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Trouble Ticket Help Requests for DTC P1633
Help Request Posted
1999 Volvo S80 2.9 2.9L No Start VIN: YV1TS97D9X
P1633: Vss. Customer drove car with complaints of having to feather the gas pedal to drive it to shop- said all of this problem started with battery replacement and jump start It ran 3 secs for us on 2 occasions - I have spark - I have RPM signal on scan tool - Tach flu...
July 20, 2010