Firewood truck
Newbie
Hello everyone.
I'm trying to track down an odd issue with my beater truck. It appears that the over head map lights/dome light don't work and the lower dash curtsey lights & glove box light are constantly hot. I will start with, I have downloaded the great wiring diagrams that are posted in this site. After a bit of studying them on Sunday, I realized that the 30A circuit breaker fuse was missing, so I got one of those and still have no over head lights. I replaced the bulbs and checked with a test light ( quick and dirty) and then my multimeter, no voltage going up there. I noticed that both lower dash courtesy bulbs were blown. I checked them and found that they are constantly hot ( 12V going to them).
Today I started with isolating the lower light circuit by unplugging both door jamb switches, no change- still getting 12V to those bulb sockets. I tried with all positions of the ignition key, no change. The ignition switch ( on the lower steering column is new, as is the ignition switch/key. Both were so worn out when I got the truck, you didn't need a key to twist the ignition switch)
By using the schematic, I traced the wires back to the Convenience Center, both sets of orange wires are always hot. I would imagine that the circuit needed to be triggered/completed by one of the door jam switches. I haven't pulled up the door sill trim to check for crushed/shorted wires, but outside of doing that, it really baffles me how 1/2 of the circuit is dead and the other 1/2 is constantly energized. I also pulled the aftermarket deck, expecting to find a hack job of the harness but I was surprised to find some nice, neat Crutchfield style harness that plugged into the OE harness. I can't see any evidence of hackery anywhere under the dash, no chew marks from critters, no chaffing of harnesses against metal. No pinched harnesses that I can see. All cluster lights work along with the dimmer. When I "click" it to the interior light position, it get nothing.
If anyone has any ideas on some more in-depth trouble shooting, I'm willing to try anything.
I'm trying to track down an odd issue with my beater truck. It appears that the over head map lights/dome light don't work and the lower dash curtsey lights & glove box light are constantly hot. I will start with, I have downloaded the great wiring diagrams that are posted in this site. After a bit of studying them on Sunday, I realized that the 30A circuit breaker fuse was missing, so I got one of those and still have no over head lights. I replaced the bulbs and checked with a test light ( quick and dirty) and then my multimeter, no voltage going up there. I noticed that both lower dash courtesy bulbs were blown. I checked them and found that they are constantly hot ( 12V going to them).
Today I started with isolating the lower light circuit by unplugging both door jamb switches, no change- still getting 12V to those bulb sockets. I tried with all positions of the ignition key, no change. The ignition switch ( on the lower steering column is new, as is the ignition switch/key. Both were so worn out when I got the truck, you didn't need a key to twist the ignition switch)
By using the schematic, I traced the wires back to the Convenience Center, both sets of orange wires are always hot. I would imagine that the circuit needed to be triggered/completed by one of the door jam switches. I haven't pulled up the door sill trim to check for crushed/shorted wires, but outside of doing that, it really baffles me how 1/2 of the circuit is dead and the other 1/2 is constantly energized. I also pulled the aftermarket deck, expecting to find a hack job of the harness but I was surprised to find some nice, neat Crutchfield style harness that plugged into the OE harness. I can't see any evidence of hackery anywhere under the dash, no chew marks from critters, no chaffing of harnesses against metal. No pinched harnesses that I can see. All cluster lights work along with the dimmer. When I "click" it to the interior light position, it get nothing.
If anyone has any ideas on some more in-depth trouble shooting, I'm willing to try anything.