If the secondary air injection failure code comes up you shold propably check the air pump fuse. I think it is call the air pump. The fuse is rather big. Sometimes water gets into the air pump and causes it to trip out. the fuse is loacated on the front pasengerside close to the bumper. Some people say that you will know that the fuse is out on the air pump because the hood light goes out. That's not really true in all cases.
Its in the fuse block - underhood.......
The ABS fuse on a 1996 Oldsmobile Bravada is located in the fuse box, which is typically found under the dashboard on the driver's side. You may also find a secondary fuse box in the engine compartment. To identify the correct fuse, refer to the diagram on the fuse box cover or the owner's manual, as it will indicate the specific location and rating for the ABS fuse.
Air solenoid fuse would be for the secondary air injection system. This is an emission system component. You may not notice any issues with it missing. Some cars don't have it even though it is in the fuse box location.
in the fuse box
Dome light fuse for 2004 Bravada is fuse#4 (10amp) in fuse box underneath back seat on driver's side
In a 2000 Ford Taurus, the fuse for the secondary air pump is located in the fuse box under the hood. Specifically, it is typically found in the central junction box. You should look for a fuse labeled for the secondary air injection system or similar terminology. Always refer to the vehicle’s owner manual for the exact fuse location and specifications.
It does have fuel injection. It may not be working but it has it. If it is not working then the fuel pump may have failed or the fuse is blown or relay is bad.
it is on the right side fender behind the battery
The TCCM (Transfer Case Control Module) fuse on a 1999 Bravada is located in the engine compartment fuse box. The TCCM is located in the dash on the driver's side to the left of the steering wheel.
In a 2001 Oldsmobile Bravada, the fuel pump relay is located in the under-hood fuse and relay center. This center is typically situated near the battery, on the driver's side of the engine compartment. You can identify the specific relay for the fuel pump by consulting the diagram on the cover of the fuse box. Always ensure the vehicle is turned off and take necessary precautions when working with electrical components.
Remove the abs fuse under the hood in the fuse box