Wiring issue.

[Venacava1]

I have a 2015 3500 with the 6.7 all od the sudden I have no left turn signal with any of my trailers. The signals on the truck work and when I hook the multimeter up to it I'm getting the voltage as if the signal is working property. But when I check amperage it's very low compared to the right turn signal. Any ideas?

 

[ramrocker]

I have a 2015 3500 with the 6.7 all od the sudden I have no left turn signal with any of my trailers. The signals on the truck work and when I hook the multimeter up to it I'm getting the voltage as if the signal is working property. But when I check amperage it's very low compared to the right turn signal. Any ideas?

I'd probably get some stop/turn bulbs and make up a test jig so I could plug each into the right/left on the 7-pin on the truck and then see if right and left volts & amps looked the same to figure out if it's truck wiring problem or trailer.

 

[madtrucker2016]

Check for a relay on the tpm it might be bad on the contacts . Some times I check the tpm and can push the relays back down , like they are popping out

 

[Venacava1]

Tpm?