I'm not sure I understand the "force it to be open"?
Code:
1 Fault Found:
00329 - Control Circuit for Unlocking Rear Lid
011 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00101011
Fault Priority: 2
Fault Frequency: 2
Reset counter: 78
Mileage: 82825 km
Also, I would investigate why and exactly under what conditions the BCM reports the open circuit.
Just to confirm - the VCDS measurement group 008-4 does report pressing the opening switch/handle also in closed-closed position??
Hi, ok this is what I did today. The files you requested are attached. I also followed your suggested procedure to the T. Before I carried out the tests this is what I did so you know the situation. I felt I needed to do this and also explain behaviour prior to carrying out the tests. Just so you have all the information.
Firstly, a few days ago I charged the battery up on a trickle charger for several hours as I had a low voltage warning on the radio / infotainment system. Also as you pointed out the van whilst carrying out the tests the bcm was in a sleep mode or whatever mode as current was low. Anyway I charged the battery up and drive 30 miles. Stopped at the destination and the remote central locking worked fine no problems. I then a few hours later drive back 30 miles. Stop the van get out ready to lock it and the remote central locking isn’t working again. The alternator is functioning fine and the battery wasn’t low at the time as it had been charged up the previous day. This is a typical example of the annoyance. It will happen randomly. You can drive the van around for a few trips and it may just start to work again. It’s very strange.
So before the tests today I did the following. I first just plugged then vcds system in. I just ran a scan. I did this because this sometimes wakes up the bcm or does something that restores the remote central locking without the need of having to start the van. I just wanted to mention this to you. I do also in the back of my mind think the battery perhaps is possibly an issue. But to reiterate what I wrote early, I had fully charged battery and yet still after driving 30 miles the remote central locking stopped working. So for the purpose of the tests wanted to make sure I carried out the tests with it working. The remote central locking is still working and will do so until I take the van out again in the following days. It will then prosbly magically stop working again.
So with the remote central locking working. Unplugged the vcds, locked the van and left it for at least 30 mins.
I then with only the drivers door open and the key in my hand not the ignition carried out the block maps with the 3 different states of the boot lid. After the tests were complete I then unplugged the vcds locked the van and left it since. The key was not put in the ignition at any point.
To answer your question about the measuring blocks. I carried out a few tests today with help so I could monitor the measuring block.
measuring block 008 1,4 states change when the handle is pressed in only the OPEN OPEN state of 2,3. 1, changes from not oper to closed and 4, changes from not oper to active when handle is pressed and this will also activate the solenoid in the tailgate. The same happens when the state is OPEN CLOSED in 2,3. But when the stays is CLOSED CLOSED in 2,3 1,4 states don’t change and nothing happens at all in regards to the solenoid.
You mention seeing on the block maps channel 51 and 53 having values you’ve not seen before. I know you mention you don’t know what they are for. I don’t either , nor do I know how or why they may have changed. I can try to change them back to default if you know what it should be but more importantly how do I change them ?
