Keyless Ignition will not start engine after dashboard change

Syc0 · 05-22-2019, 08:49 AM

So i have an F32 which required a dashboard change after the airbags were deployed. After the change, i noticed a few weird things.

1. Windows wouldn't dip when opening and closing the door. This was rectified by a general window reset (holding it up and down for a few seconds).

2. Navigation Monitor doesn't work. Although i believe this was an issue before the dashboard was changed. I upgraded from the 6.5" to the 8.8". There is power going to it as the backlight turns on when the ignition is on, however it stays completely blank/black.

3. The keyless ignition system doesn't read my key anymore. Key works fine for opening and closing the car, however when inside, it will always prompts me to hold the key up to the steering column, and after a few tries with it there it turns on. My suspicion is, when i put the new dashboard back in, I've either shorted a cable or I've somehow damaged the sensor. Unfortunately I don't know where the sensor is located otherwise i'd have a look.

Also it's worth noting that during the change i didn't disengage the battery, it was on at all times. This was due to it being very difficult turning it back on if the boot closed and it being a multi-day project, i couldn't leave it open for so long.

Any guidance or advice would be very appreciated. It's doing my head in trying to figure it out

pshovest · 05-22-2019, 01:18 PM

Does the car start?
Is it drivable?

Syc0 · 05-22-2019, 04:53 PM

Quote:

Originally Posted by pshovest

Does the car start?
Is it drivable?

I bought the car from an auction and isn't in a drive-able state, however the ignition/engine does start with the key on the steering column.

Also i'm assuming the upgraded screen isn't working as i haven't updated the code.

pshovest · 05-23-2019, 07:16 AM

Put a 10-15 amp charger on the battery over night and replace battery in key.
Check system voltage with engine running.
Put ISTA on a laptop, buy ENet cable and interrogate car. Several DIY installs available for ISTA.
Run test plan for codes.

Syc0 · 05-23-2019, 08:00 AM

Quote:

Originally Posted by pshovest

Put a 10-15 amp charger on the battery over night and replace battery in key.
Check system voltage with engine running.
Put ISTA on a laptop, buy ENet cable and interrogate car. Several DIY installs available for ISTA.
Run test plan for codes.

1. Car Battery is brand new and fitted recently, i'll do a health check with my charger incase though.

2. I'll do the voltage check as advised.

3. I just bought an Enet cable to code battery and 8.8" screen, so i'll do as you advised and run some tests.

Thankyou for your response

Syc0 · 05-23-2019, 05:46 PM

After running diagnostics on ISTA, i think i found the culprit.

fault 804107 : Aeriel in passenger compartment, front: line disconnection

I am now trying to locate the aerial that controls the keyless function. I may close this thread and start a more specific one.

IK6SPEED · 05-23-2019, 09:42 PM

Quote:

Originally Posted by Syc0

After running diagnostics on ISTA, i think i found the culprit.

fault 804107 : Aeriel in passenger compartment, front: line disconnection

I am now trying to locate the aerial that controls the keyless function. I may close this thread and start a more specific one.

Did you do anything around your center console (not Dashboard)?

That's where the front sensors are...right around the shifter.

Syc0 · 05-24-2019, 02:48 AM

Quote:

Originally Posted by IK6SPEED

Did you do anything around your center console (not Dashboard)?

That's where the front sensors are...right around the shifter.

I did infact remove majority of the centre console trim to remove the dashboard. I'll have a look there and see if anything out of place.

IK6SPEED · 05-24-2019, 10:02 AM

Quote:

Originally Posted by Syc0

Quote:

Originally Posted by IK6SPEED

Did you do anything around your center console (not Dashboard)?

That's where the front sensors are...right around the shifter.

I did infact remove majority of the centre console trim to remove the dashboard. I'll have a look there and see if anything out of place.

You didn't plug the sensor back in

Syc0 · 05-24-2019, 11:05 AM

Quote:

Originally Posted by IK6SPEED

You didn't plug the sensor back in

You are 100% right. I just came to this thread to tell you that i plugged the sensor back in and saw you uploaded a pic of the exact sensor location!

Thanks mate, you've saved me many stressful hours of research!

Syc0 · 05-24-2019, 03:57 PM

Quote:

Originally Posted by IK6SPEED

You didn't plug the sensor back in

Quote:

Originally Posted by IK6SPEED

Did you do anything around your center console (not Dashboard)?

That's where the front sensors are...right around the shifter.

Quote:

Originally Posted by IK6SPEED

Thanks are nice. Appreciates are better.

Thanking people for everything is a british thing

Genuinely do appreciate the time you spent to show me where the fault was.

pshovest · 05-24-2019, 04:15 PM

Psssst.....he wants you to push the greyed out "Appreciate" button in lower left corner of post........Hover over button and it will illuminate.

Syc0 · 05-25-2019, 06:24 PM

Quote:

Originally Posted by pshovest

Psssst.....he wants you to push the greyed out "Appreciate" button in lower left corner of post........Hover over button and it will illuminate.

....Rightttt....i knew that! /facepalm

05-22-2019, 08:49 AM	#1
Syc0 New Member 1 Rep 12 Posts Drives: F32 435d XDrive Join Date: Oct 2016 Location: London iTrader: (0)	Keyless Ignition will not start engine after dashboard change So i have an F32 which required a dashboard change after the airbags were deployed. After the change, i noticed a few weird things. 1. Windows wouldn't dip when opening and closing the door. This was rectified by a general window reset (holding it up and down for a few seconds). 2. Navigation Monitor doesn't work. Although i believe this was an issue before the dashboard was changed. I upgraded from the 6.5" to the 8.8". There is power going to it as the backlight turns on when the ignition is on, however it stays completely blank/black. 3. The keyless ignition system doesn't read my key anymore. Key works fine for opening and closing the car, however when inside, it will always prompts me to hold the key up to the steering column, and after a few tries with it there it turns on. My suspicion is, when i put the new dashboard back in, I've either shorted a cable or I've somehow damaged the sensor. Unfortunately I don't know where the sensor is located otherwise i'd have a look. Also it's worth noting that during the change i didn't disengage the battery, it was on at all times. This was due to it being very difficult turning it back on if the boot closed and it being a multi-day project, i couldn't leave it open for so long. Any guidance or advice would be very appreciated. It's doing my head in trying to figure it out
	Appreciate 0 Tweet Quote

05-22-2019, 01:18 PM	#2
pshovest BMW CCA 69606 86 Rep 227 Posts Drives: '15 435i,'10 535i,'08 X5,'98M3 Join Date: Aug 2014 Location: DE iTrader: (0)	Does the car start? Is it drivable?
	Appreciate 0 Quote

05-23-2019, 07:16 AM	#4
pshovest BMW CCA 69606 86 Rep 227 Posts Drives: '15 435i,'10 535i,'08 X5,'98M3 Join Date: Aug 2014 Location: DE iTrader: (0)	Put a 10-15 amp charger on the battery over night and replace battery in key. Check system voltage with engine running. Put ISTA on a laptop, buy ENet cable and interrogate car. Several DIY installs available for ISTA. Run test plan for codes.
	Appreciate 1 Syc01.00 Quote

05-23-2019, 05:46 PM	#6
Syc0 New Member 1 Rep 12 Posts Drives: F32 435d XDrive Join Date: Oct 2016 Location: London iTrader: (0)	After running diagnostics on ISTA, i think i found the culprit. fault 804107 : Aeriel in passenger compartment, front: line disconnection I am now trying to locate the aerial that controls the keyless function. I may close this thread and start a more specific one.
	Appreciate 0 Quote

05-24-2019, 04:15 PM	#12
pshovest BMW CCA 69606 86 Rep 227 Posts Drives: '15 435i,'10 535i,'08 X5,'98M3 Join Date: Aug 2014 Location: DE iTrader: (0)	Psssst.....he wants you to push the greyed out "Appreciate" button in lower left corner of post........Hover over button and it will illuminate. Last edited by pshovest; 05-25-2019 at 09:12 AM..
	Appreciate 2 Syc01.00 IK6SPEED4488.00 Quote