OBD II port fuse

**Dave** · #1 (**permalink**) 04-02-2009, 05:10 AM

What else besides the OBDII port and cig lighter does fuse 12 control on the truck? Its blown 2 times in two days

When I tried to change a tune

szyd · #2 (**permalink**) 04-02-2009, 05:52 AM

I don't know. Does it blow when the SCT gets plugged in? Man i would really worry if that is the case. You do not want to short the SCT or PCM. If it is fine until you plug in the SCT it is most likely the SCT.

**Dave** · #3 (**permalink**) 04-02-2009, 05:54 AM

It was blown before i plugged the SCT in both times. It wasnt this morning. IM hoping it was a fluke

**WEWILLE** · #4 (**permalink**) 04-03-2009, 09:08 AM

Fuse 12 controls the dlc, cig lighter, and the horn.

**Dave** · #5 (**permalink**) 04-03-2009, 09:09 AM

Hasnt blown since

**WEWILLE** · #6 (**permalink**) 04-03-2009, 09:11 AM

Sounds good, hope you dont have anymore troubles, but if it blows again check out the horn too!

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