On mine I have to manually select the transmission type and click OK to get to the diagnostics

After changing AC compressor on 2006 xc70 the fan would run fast on startup. Stopped doing this once I recharged the refrigerant.

volvodiag.com

I just replaced my fuel pump (again) this past weekend. Prior to removal I printed out the wiring diagram for my 2006 XC70. (This diagram also covers 2006 V70) The PEM is optional for some configurations so you may not have one.

My problem was the fuel line in the tank as oragex suggested. The pump ...

Yes to external fuel filter. I've changed it twice since this started, it did not appear to be clogged. I will be pulling the fuel pump again when the amount of fuel in the tank gets close to empty.

I am really thinking electrical because when I was testing I turned the ignition off then on in the ...

Thanks for the generous offer. I replaced the PEM in my initial troubleshooting with a used unit. I have since swapped back and forth between them to no effect.

Since shutting off the ignition and immediately restarting always works I am leaning toward an electrical problem.

Bought car a few months ago. Shortly after started getting P0089 codes. Changed fuel pressure sensor and tried a different pump module. No help. Pump utilization in mid/upper 50's. Changed pump.

Last week driving home engine started bucking, lost power and died. Restarted engine and everything ...

Sounds like your initial problem was caused by the fuel pickup becoming disconnected from the spring loaded part of the fuel level sensor assembly in the access hole opposite the one with pump. The spring loaded part forces the pickup to the bottom of the fuel tank. If it came loose the pickup will ...

I tried the heat gun method about 18 months ago on my 04 xc70. Turned from a bluish color back to black. It has held up well since.