Dash light ground locations

[Xenn]

76 280z

So This weekend I removed my heater blower motor and replaced my heater core hoses, when all was back together, later that night I discovered my dash lights no longer work, runners and break lights still work, combo switch is new, fuses and fusible links are good, the 3, 10 pin connectors are connected, so from what I can read online it comes down to two things:

A) Rheostat is broken (unlikely has been working fine until now, but will check later)

Or

I knocked a ground or connector lose, this is the main reason I am here, I would like to know all the grounds and wires related to dash lights that might be under the passenger side, anything with pictures would be much appreciated, The guy who owned my car before me butchered the wiring so it would have been easy for me to knock something loose.

I have been looking around but can find little on the subject, most of the time it is combo-switch or fuses, but given my rummaging about under the passenger side it is fairly likely I knocked something loose.

[Zed Head]

I've looked before for ways to brighten my gauge lights and they ground through the rheostat. If you can get a light socket out you could check the wires for power to see if it's a power supply or grounding issue. A voltmeter would be easiest but you could also put another light bulb in series and ground it. Test light method.

[Xenn]

Rheostat is good, anything else common that might make the lights go out.

[Xenn]

Problem solved, it was a red wire with blue stripe spade connector coming down next to the center console.