1994 Nissan Pickup (D21) Q&A
1994 Nissan Pickup (D21) Question: How to fix electrical problem?
Brake light circuit shorted to the park light circuit. Wrong bulb, rusted bulb socket with poor ground, shorted wiring, moisture in tail light or if wired for trailer wires shorted there. I think when you shift to reverse, you also depress the brakes. Look at the rear lights first. All park lights are coming on when brakes are depressed! That is why dash cluster lights up as well. Remove both brake light bulbs to see if dash lights still come on with brakes pushed, post results for more info. - pushrod
I have check fuses and all under the dash are fine.