Passenger Dipped light no longer working?

[harlequin_uk]

Heya all. So managed to learn forscan , set up the sync1 (up from a basic radio) , switch on fog lights at teh front , and switch on cruise.

 

woohoo

 

now, passenger headlight dipped doesn`t work. Changed bulb and it still doesn`t work. 

 

Reverted all the changes from previous, and still not working.

 

Help!

[StephenFord]

43 minutes ago, harlequin_uk said:

... Changed bulb and it still doesn`t work.

I know it's obvious, but have you swapped it with a known working bulb? Swap it with the driver one which you know 100% works... If you've done that, and have access to a multimeter, see if you have 12v coming out the headlight connector.

[harlequin_uk]

yes i swapped the drivers side bulb ; the passenger one works in the drivers side. a few dct errors as well bcm and fdcim as well (related i think)

[TomsFocus]

Try resetting the BCM.  Will be under 'procedures' if it's available.

[harlequin_uk]

Reset it and made no difference 😞

 

bcmii and fdcim have dct errors , something about configuration?

[StephenFord]

6 minutes ago, harlequin_uk said:

.., something about configuration?

I can't think of any configuration that would purposely disable the passenger dipped headlight.

[dontpannic]

16 minutes ago, harlequin_uk said:

Reset it and made no difference 😞

 

bcmii and fdcim have dct errors , something about configuration?

Did you take backups before you coded your car?

[harlequin_uk]

Yes, reloaded them and, no change. Plug entire headlight into drivers side and it works.

[dontpannic]

I can only think fuses or wiring then!

[TomsFocus]

I don't think the dipped beam is fused separately.

Sounds like a CANBUS fault to me.  Same sort of thing happens when adding LED lights.  Essentially the CANBUS can't work out how much load should be on the circuit so can't illuminate all bulbs.

If you've added fog lights that weren't there before, that could be causing the error.  If they're easily accessible, just unplug them for now and try the reset again.

[harlequin_uk]

Just to update - it was a config error and me learning how to actually programme using FORscan properly. 

[unofix]

On 6/15/2023 at 11:58 AM, harlequin_uk said:

Heya all. So managed to learn forscan

So that might not have been a true statement 🤣

7 minutes ago, harlequin_uk said:

it was a config error and me learning how to actually programme using FORscan properly. 

The good news is you have found the problem and everything is now as it should be 👍

[harlequin_uk]

Aye, it might not be as true as i thought! It was the reset procedure when changing the fog lights and activating cruise , programming modules then resetting modules. The world is good now though!