A non turbo engine code should be B5254S. B = gas engine, 5 = cylinder, 25 = 2.5 liter, 4 = 4 valves / cylinder, S = Suction engine (non-turbo) however I think what they really need is the last 7 digit of the VIN.
If this have a coil on each spark plug there should be a manual tensioner, if there is a distributor and plug wires are going to the plugs, there should be a hydraulic tensioner.
The front timing cover can be removed easily and the tensioner will be visible.
Do you want to replace them by yourself? I'm not questioning your mechanical skills, but you know if the alignment is incorrect there will be a serious engine damage.
The other thing, I have seen few aftermarket manual tensioner failed shortly after the replacement. I wouldn't go to a parts store to get mine timing components, I'd choose the dealership and get OE parts.
Anyway, even if you think you can handle this job, GET A REPAIR MANUAL and read it first.
The ABS controller is near to the master cylinder / booster assembly. You can't miss it, there are brake lines goes to the hydraulic assembly. The black box is mounted to hydraulic unit via torx bolts.
Disconnect battery before you start to working on it.
Zee