Sync 1 to Sync 3 upgrade and AsBuilt

[mikerogers]

I’ve just completed a retrofit of Sync 3 into a 2017 Tourneo Connect (manual A/C) to replace factory Sync 1.

Having read a lot of guides on Focus and other cars, I was expecting to have to code the APIM. However, everything works without coding, including navigation.

The only thing that doesn’t work is the voice button on the steering wheel - my voice is not recognised. However, in Android Auto it works fine.

Questions…

1. Do I absolutely have to code it? Given that (nearly) everything works, is it worth the effort? What are the benefits and risks?
2. I’ve checked and AB file vs my own and there are some differences in other modules. If I load a full AB file into the APIM in forscan, does it effectively ignore addresses from other modules?
3. If I don’t update AB, will there be any issues updating to Sync 3.4?

---

SYNC Region: EU

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: Retrofit

Old SYNC Version: 1.0

New SYNC Version: 3.0

Do you have a error message, if so what is it?
No

Update Method: CyanLabs Manual Method

[F150Chief]

No issues if you don’t do anything, really. The voice button just won’t work.

@mikerogers

I’ve checked and AB file vs my own and there are some differences in other modules. If I load a full AB file into the APIM in forscan, does it effectively ignore addresses from other modules?

yes