Sourcing fault codes
QI have a 2005 Rover 45 DTI 2000cc 113bhp with an L-series diesel engine, which I bought new in 2005 and is in immaculate condition. It is the facelift model produced just before the demise of Rover cars. The operating system is Bosch EDC15M. The mileage is currently just under 50,000.
There are two engine fault lights on the dashboard: one is a plain outline of an engine, while the other is similar but with an exclamation mark inside the outline. About six weeks ago, the latter came on, but there was no effect on the car – it starts first time, runs perfectly and the emissions are OK. I used my Gendan code reader which said there were no fault codes. I tried to erase the light, to no avail. I took the car to a local garage and the result was the same, although the technician was able to extinguish the light. Three days later, the problem came back. I then took the car to an ex-rover dealership, but all they could suggest was to change the glow plugs, which I checked and all were fine. The engine light is still on.
According to online forums, there seems to be a problem with a defined code reader for this car. Is there any way of solving this problem without the use of a code reader and without me having to change parts until I find the cause, probably at more cost than the car is worth? Dave J
AThe best alternative at less than £20 is this: http://ebay. eu/2qu5ulb
You need to establish what is making the light come on. It is also possible that the ECU is faulty. If you suspect this, send it to be tested. I bought the recommended Konnwei KW806 CAN/OBD2/EOBD fault code reader. Used it this afternoon with the following results: the reader displayed ‘No faults found’ and the erase codes application says ‘Erase done’, yet the engine light is still on. I did this before starting the engine, then took the car for a 15-mile run – it started and ran perfectly. I then repeated the tests with exactly the same results and the light remaining on. On both tests, the monitoring systems showed 10 monitors – all were classed as N/A – except ‘ERG system OK’ and ‘fuel