Fitted one of these relays to my 1999 def, but it don't work, once you switch wipers on they wont stop or delay, so put original relay in back in and now normal operation. Any ideas guys?
As it's a strait replacement it should work fine; does the intermittent wipe work at all? I have done this and I've noticed you switch it on to intermittent then switch it off when the wiper is almost parked then switch it back on to inter when you reach the timing you want.
Don't know why it makes a difference waiting until it's about to park but it does!
Yeah, you can set the intermittent wiper to the timing you want and it also alters the wipe per squirt number (little squirt = 1 wipe, longer squirt = 3 wipes).