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Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15341
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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Jag s: im getting a dtc p1796 and car goes into limp mode

Customer Question

im getting a dtc p1796 and car goes into limp mode need troubleshooting and fix info
Submitted: 1 year ago.
Category: Jaguar
Expert:  Richard replied 1 year ago.
Hello and welcome to justanswer.com
That code is for a network communication fault. We will need to know what other fault codes are stored in other modules but we may have a problem with the TCM which s actually inside the transmission as part of the valve body. We need to first check the electrical connector as sometimes fluid will leak into it. Let me know.
Customer: replied 1 year ago.
there is also a gearbox fault, but I see no other dtc codes. also where is the connector Im supposed to check for fluid.
Expert:  Richard replied 1 year ago.
Underneath the vehicle on the back.of the transmission
Customer: replied 1 year ago.
ok Ill let you know
Expert:  Richard replied 1 year ago.
Ok thanks.
Customer: replied 1 year ago.
Yes there was fluid on plug, First drive after cleaning plug, was fine , second drive got gearbox fault and p1796 again.
Expert:  Richard replied 1 year ago.
Ok the fluid can be causing a bad network signal or voltage drop. We need to replace the connector sleeve on the transmission and then thoroughly clean the actual harness electrical connector.
Customer: replied 1 year ago.
Okay I'll let you know if it fixes the problem once I get the sleeve changed
Expert:  Richard replied 1 year ago.
OK sounds good.

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