Thanks. I pulled the system relay and tested it; it repeatedly closes and opens OK with 14V. Without the relay in the socket, the relay control contact sockets show about 3v with ignition off and 12.5v with ignition on. Key on-off consistently shows 3v off and 12.5v on. Installing the relay and chec...

Greetings. Hope this is appropriate place to drop this question. I have 2000 S70 NA with possible AACV issue. Codes are clean. I discovered this issue when charging the battery (periodically I charge it to determine the status of the battery, charge/discharge state/rate) and noticed it seemed to rec...

I'm guessing you could buy a very good used condition radio with a one year warranty for less than the cost of professional diagnosis and subsequent repair at an electronics repair facility. I know this can be such a frustrating experience, but - its just a radio. There are lots of 816s out there ne...

Assuming you continuity checked the button at the button contacts, that might suggest that the button is functional. Without a schematic, I'm just going to hip-shoot here so take what I say with a grain (or two) of salt, as they say. You might want to very carefully inspect that ribbon cable going i...

The issue with mine not accepting the security code was that the faceplace was not communicating with the processor on the PCB (assumed). I pulled the faceplate off, cleaned the ribbon cable end at the faceplate (where all the buttons and display are)and carfefully reinserted the ribbon cable. That ...

Well, I took the faceplate off and cleand up the ribbon cable at the faceplate that apparently connects the main printed circuit board (PCB) to the faceplate (button) PCB. I wanted to get to the other end of that cable at the main PCB but couldn't figure out how to do that without turning this into ...

Thanks. I was responding with a similar approach, but I think our submittals passed each other and mine is out in space somewhere. I pulled the radio out to take it apart, intending to clean up every contact I could find. Something is common to all buttons, so I was also thinking there may be a comm...

Yea, looks like the trash can for this radio. I was heading in that direction, but just wanted to make sure there wasn't something I was overlooking. I have a known good code. Radio is just not accepting (displaying) code numbers as they are entered. I would even be satisfied if I could force it to ...

My 2000 S70 with SC-816 radio is stuck with "CODE" displaying and will not accept (display) unlock code input from buttons. Fuses (7 &32) are good; I cleaned/checked all connections on rear of radio; tried the 2-3 hour power-on reset - no luck; nothing will get it into another displaye...