Hi all, so my smax has central locking but as of yesterday, when I press the key fob button, the doors lock and then unlock straight away. It's been to a garage who plugged it into their computer hoping to find some fault code, but there was only a code saying that the washer levels were low. The dashboard is saying all the doors, boot and bonnet are open and the courtesy lights are always on. The locks have been checked, the fuse board has been checked but it still won't lock. Anybody have a clue as to what's going on?! Thanks for reading this. 

 

If the car thinks any of the doors, boot or bonnet are open, it will not lock.

You say it thinks all are open, not just one?

2 hours ago, Chris Davies said:

Anybody have a clue as to what's going on?

Yes, FORScan has.

You could use it and read the Ford specific DTC's and then you would know what the problem is.

3 hours ago, alexp999 said:

If the car thinks any of the doors, boot or bonnet are open, it will not lock.

You say it thinks all are open, not just one?

Yeah, literally everything is open according to the car

1 hour ago, unofix said:

Yes, FORScan has.

You could use it and read the Ford specific DTC's and then you would know what the problem is.

So that's a main dealer thing then? 

50 minutes ago, Chris Davies said:

So that's a main dealer thing then? 

No, do a search on here about the vLinker cable and use a windows laptop and download FORScan, its free ! sign up for a 2 month licence (free) and off you go.

FORScan:

On 4/7/2024 at 8:59 PM, unofix said:

FORScan (for use with Windows Laptop) : https://forscan.org/download.html

It's what many Ford owners use including some Ford technicians.

• vLinker FS, cable for laptop: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP

OR

• OBDLINK EX, cable for laptop: https://www.amazon.co.uk/OBDLINK-EX-FORScan-OBD-Adapter/dp/B081VQVD3F/ref=sr_1_5

 

• vLinker FD, for android phone: https://www.amazon.co.uk/Vgate-Bluetooth-vLinker-Scanner-Diagnostic/dp/B08H82WC8L
• vLinker FD+, for iPhone: https://www.amazon.co.uk/Vgate-Bluetooth-vLinker-Scanner-Diagnostic/dp/B08H8JHWP2

 

Search Tag:   FORScan123

 

It's time to get a padlock.

10 hours ago, hyundaiowner said:

It's time to get a padlock.

Ha, it just might be 

On 3/2/2025 at 3:45 PM, unofix said:

Yes, FORScan has.

You could use it and read the Ford specific DTC's and then you would know what the problem is.

A mechanic friend downloaded it, plugged it into my car aaannnnddd...... still nothing😞

16 hours ago, Chris Davies said:

A mechanic friend downloaded it, plugged it into my car aaannnnddd...... still nothing😞

I wonder if this is a 'return' fault from the interior light.  Just thinking if that backfeeds on the 'doors open' wire, without a door actually open, whether than can be fooling the BCM into thinking they're all open?  Think I'd try unplugging the interior light as a quick and easy check, though that wouldn't rule out a wiring short.

I wouldn't be surprised if it is the BCM at fault though.  They aren't easy to test with a basic multimeter as they have electronic components in them, not just fuses and wires like the older cars.

My money is on BCM