My high beams are very dim and the blue light indicator on the dash does not light. All the other lights, front and rear operate normally. I measured the voltage at the socket and it only 10 VDC. The relay has 12 VDC for the coil operation. I have not figured out how to check the voltages on the contacts. Help!

 

See Alldata or Mitchell for wiring diagram. If both high beams are dim then look for DRL2 believe it provides the 12v you need.

 

hanks for the reply.
I pulled the DLR2 and checked the voltage, it's 10 volts into the relay. I think the computer is providing the dimmed voltage to the bulbs. I bought a general purpose relay that operates on 10 VDC and I will use that to supply 12 VDC to the headlamps.

 

The computer doesn't provide voltage. It grounds a circuit to complete it.

Voltage comes from the 40A MAIN fuse then via a convoluted array of relays and fuses to the headlights. Try to find a wiring diagram!

The DLR2 relay switch and coil input is connected to the 40A MAIN fuse.

 

Is this a good thing? "convoluted array of relays and fuses to the headlights"
I think adding a relay, triggered by 10 volts and supplying 12 volts to the high beams will be sufficient. Handling 12 volt lighting with a computer is stupid. If I wasn't so lazy I would rewire all the lamps to remove them from computer control.

 

Does this care have daytime running lights (DRL)? DRL lights use the high beams but lower the voltage to dim the bulb.

 

Yes, I checked the voltage at relay DLR2 and at the high beam connector. The relay switches on/off.

 

DLR2 relay has 2 plugin terminals wired separately to the 40A MAIN fuse. These are for the solenoid and the relay switch contact, Each wire receives battery voltage from the fuse.

The arm of the relay switch is connected to the 10A RH upper headlight.

The other end of the solenoid connects to the computer.

The DRL wiring system is supposed wire the high beams in series thus lowering the voltage.

 

Question, are you using LED bulbs or Halogen?

 

I'm using LED