I am experiencing a very similar issue with my 2006 XC-90 2.5T. March of 2024, I took into shop due to stuttering crank when starting. Expecting a possible tune-up issue due to being used to older vehicles which crank slow when battery is unhealthy, I was surprised when they said that my battery ...

Several years later follow-up, finally gave up and had shop replace the solenoid itself and that solved the issue. I think that was about 5 years ago, whew, time flies! Still driving the heap!

Interesting input, I actually have not yet tried checking for voltage while pressing fuel unlock button, only main door lock/unlock with key fob. From what I understand, the Euro XC90s do not have the driver's side left knee area fuel hatch unlock button so maybe I was going down the wrong path with ...

Thanks for the reply/video but I am actually not getting any power to the connector that supplies the open/close voltage to the solenoid to engage/disengage lock pin. I have good ground but Rear Electronics Unit 4/58 is not outputting 12 VDC. I am assuming wiring is good since access to REM is ...

Got a 2006 XC90 2.5T with a fuel cap hatch that will not lock since the last fill up. It has been working up until now, had the vehicle almost 3 years. What I've done so far:
1) Checked for power at motor solenoid connector (blue/black stripe to yellow). I got 0 volts after locking and unlocking ...