I have successfully used coolant drain & fill for Volvos for many years without issue. Does using a vacuum/fill device work better than filling coolant reservoir, starting engine, adding coolant as reservoir level drops, wait for thermostat to open, then continue to add coolant over several days as ...

You are correct. Switching to the Delivery tab enabled clearing the DTC’s. They did not return during test drive. Success!! Thanks for the help
Marlin

2006 XC70. I changed the timing belt, started engine & while on test ride, Check Engine light came on. My handheld scanner didn't show any ECM codes, but when I got home and connected to VIDA, I got these codes: ECM-670C Camshaft position, inlet-High and ECM-671C Camshaft position, exhaust-High. I ...

I was able to manipulate the bulb connector wiring (very tight area) without removing bulb. Seems to be working now, sitting in driveway. Thanks.
Marlin

2006 XC70. Is there a relay for the single light? It goes off, then comes back on so I don't suspect a fuse. After a few cycles it will stay on. No problem until I switched on high beams, but then did the same thing when on low beam.
Marlin

I sent the CEM to Xemodex. It tested ok at their facility but I had a new one programmed and returned. Car functions fine after installation of the replacement.

Two things that I wish I had done first: disconnect the battery and leave it disconnected for a day, then reconnect and see if problem ...

I used 2 scanners (IcarSoft & VIDA) and neither could communicate with the car. VIDA said CEM was not communicating. I released the CEM from it's hiding spot under the dash, disconnected the battery, but haven't yet removed anything from the unit. I don't see any obvious signs of water infiltration ...

Also no shifter light, check engine light on. Worked fine yesterday. What do these systems have in common?
Thanks.
Marlin

1951 Farmall M, gas, tire chains & 3-point hitch with 8' blade for clearing snow. Added electronic ignition and block heater for cold weather starting. Few potatoes here but the Iowa State Ag department does a lot of maize research.

What's the process for using VIDA while bleeding?