Blown Small Lights Fuse
#1
Blown Small Lights Fuse
The small lights fuse under the hood keeps blowing. I’m not sure if it’s grounding out or if it’s the combination switch. I got a couple packs of fuses to test this morning.
The fuse doesn’t blow with the headlights off, regardless of the key position or if it’s running. Initially, the fuse did not blow with 1) the key in the off position and the lights on, and 2) the key in the number 2 position and the lights on. However, when I cranked and turned the lights on, it blew. After that, the fuse blows whenever I turn the lights on, even if the key isn’t in it.
Next step?
The fuse doesn’t blow with the headlights off, regardless of the key position or if it’s running. Initially, the fuse did not blow with 1) the key in the off position and the lights on, and 2) the key in the number 2 position and the lights on. However, when I cranked and turned the lights on, it blew. After that, the fuse blows whenever I turn the lights on, even if the key isn’t in it.
Next step?
#4
Most likely component on fuse 32 circuit is the dimmer control unit. It's easy to remove (pry out carefully w/ small screwdriver). Jumper red wire to ground or to blk wire pin (ground also). If this stops the fuse from blowing, you've confirmed the dimmer control is shorting red/blk to ground.
If dimmer is not the problem (fuse blows again), then combination switch is next most likely component (short to ground in switch). To test this switch will require removing the steering wheel cover and accessing the connector to the combination switch. Disconnect body harness connector from switch harness connector and check (switch side harness) whether Red/BlK pin is shorted to blk pin w/ switch On (it should be open).
If combination switch checks good, you'll have to sequentially disconnect the components (interior lights, panel lights, cigarette lighter light, etc) until you find the component w/ a short. It could also be a wiring fault; pinched wire, bare wire touching ground.
You need a wiring diagram to support you. Check Online Manuals for links to 94-97 Accord manual.
good luck
good luck
If dimmer is not the problem (fuse blows again), then combination switch is next most likely component (short to ground in switch). To test this switch will require removing the steering wheel cover and accessing the connector to the combination switch. Disconnect body harness connector from switch harness connector and check (switch side harness) whether Red/BlK pin is shorted to blk pin w/ switch On (it should be open).
If combination switch checks good, you'll have to sequentially disconnect the components (interior lights, panel lights, cigarette lighter light, etc) until you find the component w/ a short. It could also be a wiring fault; pinched wire, bare wire touching ground.
You need a wiring diagram to support you. Check Online Manuals for links to 94-97 Accord manual.
good luck
good luck
#7
I finally found a combination (headlight) switch at Pull-a-Part, but no luck. Still blowing the fuse. I also disconnected the wiring harnesses in the trunk. There was a little water that had collected in the right front turn light, so I also disconnected it with no luck. I plan to replace the turn light next
Where should I look next? Grounded wire? Any places I should start looking first? Something else I missed?
Where should I look next? Grounded wire? Any places I should start looking first? Something else I missed?
#9
The only time the fuse blows is when I turn on the headlights.
To start with, I pulled the dimmer switch and it still blew. Today, I changed the combination switch and it blew with the replacement switch installed. I started it and it didn't blow with the combination switch unplugged, but again, it only blows when I turn the lights on. I'm at a loss
To start with, I pulled the dimmer switch and it still blew. Today, I changed the combination switch and it blew with the replacement switch installed. I started it and it didn't blow with the combination switch unplugged, but again, it only blows when I turn the lights on. I'm at a loss
#10
The fuse you are blowing protects the red/green wire going to the combination switch. When you turn on the headlights, the red/green wire is connected to the red/blk wire.
That red/blk wire powers a lot of lights:
both front parking lights
both rear side marker light
both taillights
both license plate lights
dash light brightness controller and dash lights
glovebox light
heater control panel lights
integrated control unit
passenger vanity mirror
You can inspect the electrical connections on all of these bulbs to see if there is some bare wire hitting metal?
One way that you can isolate the problem is to unplug these items and see if the fuse blows when you turn the lights on. In the wiring diagram, there is a junction connector C552 that is in the left side of the trunk. This connector feeds power to all the lights mentioned above in the trunk. I would guess that it is near the power window antenna. If you unplug that, and the fuse blows, then the wiring in the trunk is not the problem.
That red/blk wire powers a lot of lights:
both front parking lights
both rear side marker light
both taillights
both license plate lights
dash light brightness controller and dash lights
glovebox light
heater control panel lights
integrated control unit
passenger vanity mirror
You can inspect the electrical connections on all of these bulbs to see if there is some bare wire hitting metal?
One way that you can isolate the problem is to unplug these items and see if the fuse blows when you turn the lights on. In the wiring diagram, there is a junction connector C552 that is in the left side of the trunk. This connector feeds power to all the lights mentioned above in the trunk. I would guess that it is near the power window antenna. If you unplug that, and the fuse blows, then the wiring in the trunk is not the problem.