Master cylinder. Located on the firewall, driver's side, in front of the brake booster.
Near the battery attached to the round brake booster.
The fill plug is in the center rear of the case.
On the firewall, in front of the booster, on top of the master cylinder.
Fill plug is located on the center rear of the transfer case
No
In my 1989 Dodge Dakota the brake light is on fuse number13 it is a 5amp it also goes to buzzer, speed control, check engine light, anti-lock warning light, and other things page 12-19 Haynes 1987- 1993 Dodge Dakota Repair Manual
Dodge Dakotas do not, and have never, had transaxles.
in front of steering wheel in engine compartment ( two small caps on rectangular block )
A 1989 Dakota has throttle body fuel injection.
Transfer case gets ATF (auto trans fluid) Axles get 75w90 or 80w90 gear oil.
Autozone web page has the Vacuum diagram for the1989 Dodge Dakota.
Before you add brake fluid, are you SURE you need to add some? Because as brake pads wear, the brake fluid level goes down, but the brake pads need to be replaced then, BEFORE any brake fluid is added. Otherwise, when the brake pads ARE replaced, there will be too much brake fluid in the reservoir, and it will flow out when the pistons are pushed back into it's bore, to make room for the new pads. -Tom.