P2002 how to solve indicator ligth on dash board

recheck your code p2002 is a deisel specific on vehicles 2007 and up https://www.obd-codes.com/p2002

First check fuses. The parking lights and dash lights come on with the light switch, but have different fuses. if you have front lights( the switch is good), but no rear, check the grounds in the rear. They are usually mounted to the frame on the drivers side rear. As for the dash they have their own grounds. Places I know are at the steering column and behind the drivers side kick panel. You could also have problems at the plugs them selves, Corrosion. If you have no parking, brake, or reverse lights, it is a ground problem.

Undo the trim with blunt flathead screwdriver from around the inner dash where the clocks are, look for screws, maybe 3or4 then prize dash panel off then take dash clocks out, bulbs are in back of dash

It is NOT SAFE to drive your vehicle when the BRAKE and ABS lights are illuminated simultaneously.
I recommend that you have the vehicle TOWED to a repair facility for inspection, as you may find yourself with NO BRAKES, and UNABLE TO STOP.

Blown fuse or a loose ground strap from engine to firewall.

its not a bulb,its the temp sensor,just leave it alone

Hi, please have the car scanned at your local parts chain and send us the trouble codes. We must have the specific codes beginning with a "P" and followed by 4 digits to help you.

Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

the computer needs resetting to accept the new key

with great difficulty

What year is this vehicle? It might have an ambient light sensor that has failed if it's 90's+,but older it's most likely the dimmer switch. If it's early 80's you should be able to replace it w/o having to removed the dash,just small panel cover nearby.