Limp mode after Engine Service now and Hill start assist unavailable notifications?

Tiny
JWHITELAND
  • MEMBER
  • 2017 FORD FIESTA
  • 1.2L
  • 4 CYL
  • 2WD
  • MANUAL
  • 52,000 MILES
The car listed above is a mk7, it has started going into limp mode after displaying 'Engine service now' and 'Hill start assist unavailable' messages.

Both brake light switches have been replaced.

Help?
Wednesday, December 6th, 2023 AT 9:31 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I need to know which engine you have. My manual indicates three different options. See pic below.

Also, have you scanned the computer to see if any diagnostic codes are relevant to this issue? In this case, I would scan the can-bus.

CAN stands for controller area network. Basically, the different modules are tied together via a few wires. This will retrieve codes regardless of the module storing them.

Here is a link showing what I'm suggesting:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know.

Take care,

Joe

See pic below.
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Wednesday, December 6th, 2023 AT 8:16 PM

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