Electric problem, code P1793

PRRYPERRYS

MEMBER
2003 JAGUAR X-TYPE
2.5L
6 CYL
AUTOMATIC
153,342 MILES

Was driving car battery light came on radio cut off A/C cut off ABS light came on car started to brake on its own. I pulled over cut it off it would not start got a jump it ran 15 minutes and started shaking I cut it off it would not start back. Got another jump it ran 15 minutes and started shaking. I noticed once the car got cold it would start on its own code P 1 7 9 3 came up. Thank you for your support.

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

The code P1793. TCM Ignition Switched Power Malfunction
This could be trigger by several factors.
It could be the transmission control module which casing it not to start when the vehicle is hot. And triggering the ignition power malfunction.
It could also be a issue with the gearbox.
I have attached a step by step diagnostics for this issue, that way you can pinpoint of what might be happening.

https://youtu.be/ahK_eucFi-k

Please let me know of any questions.

Thank you.

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Electric problem, code P1793

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