diagram of valve block and solenoids attached showing location of each.
The Delay Timer for EAS is indeed under the passenger seat. Remove the trim... a couple of screws and 2-3 Christmas Tree plugs/clips and look for the matchbox-sized black box sitting vertically.
Recent experience with removing the timer today when I crushed a height sensor and had to drive 30km with the Rear Right sensor removed until I could "borrow" another one :o
Cheers, Paul.

