Incusus
Adventurer
Unfortunately, the check light on the TOD was flashing, which I saw over at Planet Isuzu means bad/expensive news. .
I've not run into an expensive tod issues. Fixed my check tod light way back with a simple sensor swap on the front axle. <30 min labor, about $40 for the part. The only other real problem I've heard of with the tod going out has to do with the actuator getting gummed up from non-use, also a pretty quick fix.
YMMV of course...