That is what I thought... Sensor is new (wheel is clean), cable is OK. PCB is 18 (MK1) but I have a PCB35 in stock. Will that works on MK1 ? Or can anyone sold me a PCB18 ? 

I'm not sure whether that works.
PCB 35 is meant to be for MK2 or MK3. The problem you might have is that the software on PCB35 gives problems communicating with the software. The mk1 starts with 1.4 at least but mk2's have 2.0 as the lowest version.  Apart from that there could be a pin difference in a connector.
Check the small flatcable for loose connections, which sits between the sensor pcb and pcb 18.

Thanks.

Mine is software 2.0 on the PCB18. Pin to pin test is done. Have also tried with chassis closed (to prevent day light even if on the data sheet of the sensor it says there is no problem). Have also noticed that the ground on the uP shield is not the same as the one on the radiator on the FET's ? Small differences but uP and wheel sensor share same ground... 

huskvarn wrote:

Thanks.

Mine is software 2.0 on the PCB18. Pin to pin test is done. Have also tried with chassis closed (to prevent day light even if on the data sheet of the sensor it says there is no problem). Have also noticed that the ground on the uP shield is not the same as the one on the radiator on the FET's ? Small differences but uP and wheel sensor share same ground... 

Long shot I know, but what voltage is the backup battery ? I have seen a MK1 with weird faults because the battery was dead end leaking. After I changed it, it went back to normal. 

although it was not the same errors as you. These errors was settings and power on issues. Again, long shot but worth measuring ?

Good clue.. Worth the try. I have just ordered the battery, never had been changed so it will be a good thing whatever the result. I've also ordered the small cable between PCB and sensor on RS, a little more than 2e. Hope it will helped me... 

So... Battery is at 3,18V but ordered anyway, have the age of the BS9000. Also received the micro match cable between the PCB and the sensor, same behavior. Have tried the MK3 Motor PCB on the MK1 it doesn't works (no motor control) was interesting because as my PCB41 has been retrofitted ...

Anyway, next step is to test the sensor on the bench, sledge release with TM72, an external power supply and the two outputs on the scope meter. If all that is ok then the problem il the PCB.

Does anybody knows what signals the IC2 need to understand the sledge sensor ? Only quad 1 et quad 2 ? What are the job of sledge and int sledge pin 5 and 9 ?

Thanks!!

So, I update the post. Battery change haven't change anything. BUT I've wired the outputs of the pulses to my scope and there were a problem with the sensor -> Dead on arrival... I've ordered a new one (received today) and now I have the correct pulse in quad. But It doesn't works for now.

Can someone explain the conditions of the TM71 ? Do I need fix the glass, the cover ? Does the sledge have to be in CD1 position (doesn't explain on the service manual). Now that I have the pulses, I have to calibrate the sledge...

Another weird thing, when I do TM73, sometime it is not ok (APS34) ? Will that be a common problem with the SLG31 (something with a reference on the microprocessor ?)

Thanks!

huskvarn wrote:

So, I update the post. Battery change haven't change anything. BUT I've wired the outputs of the pulses to my scope and there were a problem with the sensor -> Dead on arrival... I've ordered a new one (received today) and now I have the correct pulse in quad. But It doesn't works for now.

Can someone explain the conditions of the TM71 ? Do I need fix the glass, the cover ? Does the sledge have to be in CD1 position (doesn't explain on the service manual). Now that I have the pulses, I have to calibrate the sledge...

Another weird thing, when I do TM73, sometime it is not ok (APS34) ? Will that be a common problem with the SLG31 (something with a reference on the microprocessor ?)

 

Thanks!

TM71 should be run with glass lid attached, and cd’s in all positions EXCEPT 1. That should just be empty.

/Weebyx