Can anyone help me with a problem with my disco 2? 2001 Disco series 2 diff lock light flashed on yesterday, now stays on all the time. Checked the owners manual, it states that the diff lock can be activeted for maintenance. However, it must be deactivated or it will effect the ABS and the traction control. This it has done and both warning lights are now illuminated with the diff lock light. Can the diff lock be inadvertantly activated and if so, how do you deactivate it? Is this something i cando myself or will it need the garage?