I have owned my Transit T260 2L Di for a few months now with no problems at all. The other day the battery light came on whilst driving and stayed on, It now stays on all the time when the van is running apart from occasionally going off when first started but as soon as i rev it comes on again. I have read many post explaining that a corroded wire from the alternator can cause this. So i firstly tested the voltage at the 5 amp fuse F4 which gave me 12 volts. I then started inspecting the wiring from the alternator to the fuse box in the engine compartment, All seamed to be intact. the next place i intended to look was the generator cut off relay R5, I found it was not were the haynes manual said it should be. Looking at the gap were it should be i could not see any connectors for a relay to fit into. I also checked the passengers side fuse box for the battery saver relay R15 and once again it was missing. Im a bit confused as the light never came on before and nothing has changed since i bought the van. I also checked the battery voltage which reads 12.3v ignition off 14.5v running. Any help would be most appreciated. Thanks Gareth