1985 Mondial QV Cabriolet: This (and other pre 1987/86?) Mondials have an indicator panel next to the shifter with various indicator lights for engine oil/transmission oil/open hood etc. One of the lights (a yellow one) is supposed to indicate a bulb-failure. The problem is when ever the lights are on, the bulb-failure indicator is on. All bulbs have been checked and all are ok. They have been swapped from side to side and with new ones. The indicator lights when the headlights are turned on, which turns on stop lights, four marker lights, and front parking lights. Interestingly, the bulb-failure also turns on when just the parking light switch is enabled (ie main headlights are not on, just front two parking lights and two rear stop lights). This makes one suspect the problem is either with the two front parking lights or two read stop lights only, or of course the actual indicator panel. Does anyone know specifically how this circuit works (don't have access to an 85 QV mondial wiring diagramm, does anyone know where to download on the net?). In reading about various Jaguar, and Volvo systems, the indicator tests for a similar current draw from bulbs on the right & left side. If one is out of whack (drawing too little) then the indicator lights. On some other cars the bulbs are wired right/left to a bimetallic strip that heats up with current draw, if one side takes too little the metal "swings" towards that side making contact and lighting the indicator. Another similar system uses a reed switch with two opposing magnetic fields driven by the current draw of the right/left side bulbs. Does anyone know what kind of system the Mondial employs for this? The resistance to ground on the light sockets is nominal about 0.2 ohms. The voltage on the light sockets is the same. The bulbs have been swapped with new ones. This failure was inherited so their was no moment of change that was noticed. Any ideas appreciated!