- Apr 6, 2004
It only happens when cranking. I took the dome light down and checked for grounds. If I have the door open with the dome light on after replacing the fuse as soon as I crank the engine over it blows. There nothing on the terminal next to the fuse either.
tom3 brings up a good things to try and if not here's something I'll throw out.
To keep from blowing fuses, take the blown fuse out and put a test light or a 12V bulb between the two fuse clips in the fuse block.
If the lighter is out of the socket and the doors are closed as well as the headlight switch not turning on the dome light, the bulb should not be lit as there should be NO current flowing. This would be something like one would do to find a battery drain between the battery post and the disconnected battery cable end. If the light is off, no drain but if it's dim to bright, then something is draining power.
If you were to open the door or turn on the headlight dome light switch or push in the lighter element then the light will come on so try this.
Now with the test light or bulb off, try cranking the motor and if there is a short which would blow a fuse if one was in there, then the light will come on.
You should be seeing the light come on.
The next test I need to know if you have an automatic or a manual.
Also too, are you dealing with, or do you know, is the wiring virgin and unmolested or have things been changed or added that we know nothing about right now such as added cooling fans, electric fuel pumps, changed shifter setup, or ???????. We don't need to find out later you didn't tell us something that might be important with the troubleshooting.