I used to have a Rover 800 series Sterling and the ECU was mounted (IIRC 'cos it's been a few years) under the passenger seat and had a big red LED visible through a little window. All you had to do was count the flashes of the LED then look it up in the workshop manual - no need for special diagnostic software or plug-in readers or anything like that.
Eee, those wer't days :o) Anyway, I digress...
The wife has an X-reg Mitsubushi Carisma 1.8GDi and the ECU light came on but before I had chance to investigate it properly it went out again. Couple of days later it came back on for about 3 days (again, circumstances and time were against a proper investigation) then went out for a week, and now it's back on again.
Anyone know where the ECU is located and if there's a nice, big, bright LED to watch or any idea how to read the fault codes?
Cheers,
Mogweed.