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P1111 Diagnostic Trouble Code Discussion for May 2008

IAT Sensor Circuit Intermittent High Voltage

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Trouble Ticket Help Requests for DTC P1111
Help Request Posted
1999 Jaguar XJ8 L 4.0L MIL Lamp on VIN: SAJHD6046X
P1111: systems check complete. ... transmission fault light on once every few months. Now it will do it once every week or so. If you shut vehicle off and wait a short minute, you can start it and drive off like nothing was ever wrong. That info comes from customer - we have not seen vehicl...
May 27, 2008