2000 Volvo S40 "greek symbols meanings" Questions

...rectangle with green triangle inside inside the triangle an inverted y shape a inverted y is the greek symbol for lambda.which means your car is telling you that you have a faulty lambda probe(if ...

...the symbol look like an upside down y? If so it is the lambda sign (the elleventh character of the greek alphabet), meaning that there is something fishy going on with the emissions part of the cars ...