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P1797 Diagnostic Trouble Code Discussion for November 2008

Manual Shift Overheat Malfunction

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Trouble Ticket Help Requests for DTC P1797
Help Request Posted
1998 Jaguar XK8 4.0L MIL Lamp on, Limp Home Mode VIN: SAJGX2245W
P1797: CAN ECM token message missing. Code P1637 and Code P1797. I've accessed all related modules to check ISO 9141 Protocal lines (yellow wire, and green wire) to and from each module. There are no open circuits or no shorts to ground on any wire in the system. I've also checked continuity on al...
November 05, 2008