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P1638 Diagnostic Trouble Code Discussion for November 2012

TCM Internal - CAN 1 RAM Performance


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Trouble Ticket Help Requests for DTC P1638
Help Request Posted
2002 Jaguar X-Type 3.0L No Start, MIL Lamp on, Ign. Switch VIN: SAJGA51C72
P1638: CAN ECM/INST network malfunction. Intermitant problems are always fun to figure out. This is what i do know. When it doesn't start, i notice only the check engine light is on. No other dash lights appear. When it does start all the dash light come on when i turn the key on. I can mess around w...
November 02, 2012
2002 Jaguar X-Type 3.0L No Start, MIL Lamp on, Ign. Switch VIN: SAJGA51C72
P1638: CAN ECM/INST network malfunction. Intermitant problems are always fun to figure out. This is what i do know. When it doesn't start, i notice only the check engine light is on. No other dash lights appear. When it does start all the dash light come on when i turn the key on. I can mess around w...
November 02, 2012