A while back I installed a Kaymar bumper and wired the turn signal lights up. Everything was fine until my first trip out with the trailer, I blew the converter on the signal side. So I replaced the converter and unplugged the lights. I suspected the flasher might not be up to providing enough current to operate the additional lights.
A little back ground: The stock replacement flasher is an EP25. This is rated 2/4 which means 2 signal 4 flashing. The plugin upgrade is an EP36 which is rated 3/6 which is 3 signal and 6 flashing.
Now I have:
2 dash
2 front truck
2 front bumper
2 rear truck
2 rear bumper
2 trailer
____
12 total bulbs
Slightly more than what either flasher is rated for. Our stock unit is a 3 prong ISO configuration however it is not compatable with the heavy duty 3 prong flasher commonly available. The reason is that our configuration is a B-battery, E-Ground and L-load configuration and the heavy duty is a X-battery, P-pilot (panel) and L-Load configuration. Plugging in the heavy duty flasher will result in shorting the 12v line to ground and blowing the fuse.
So the obvious upgrade is to a 2 pin ISO flasher which is X- 12v and L- Load. However the wiring at the socket is 180 deg out from that of the heavy duty flasher. So you'll need to swap the E- Gropund wire with that of the B- 12v one.
Attached is the relay block removed from the truck
A little back ground: The stock replacement flasher is an EP25. This is rated 2/4 which means 2 signal 4 flashing. The plugin upgrade is an EP36 which is rated 3/6 which is 3 signal and 6 flashing.
Now I have:
2 dash
2 front truck
2 front bumper
2 rear truck
2 rear bumper
2 trailer
____
12 total bulbs
Slightly more than what either flasher is rated for. Our stock unit is a 3 prong ISO configuration however it is not compatable with the heavy duty 3 prong flasher commonly available. The reason is that our configuration is a B-battery, E-Ground and L-load configuration and the heavy duty is a X-battery, P-pilot (panel) and L-Load configuration. Plugging in the heavy duty flasher will result in shorting the 12v line to ground and blowing the fuse.
So the obvious upgrade is to a 2 pin ISO flasher which is X- 12v and L- Load. However the wiring at the socket is 180 deg out from that of the heavy duty flasher. So you'll need to swap the E- Gropund wire with that of the B- 12v one.
Attached is the relay block removed from the truck