So I thought I found my issue. Went under the truck to try disconnecting my yellobox and reconnecting the original harness. Found that my yellowbox fell from its mounting and went MIA somewhere just before I exited the highway, leaving the harness to drag on the road and get chewed up. Brilliant! I'll just hook the OEM back up and be good to go!
Nope. Still bad.
So I went through the DS footwell fuse panel. I pulled every fuse out and checked, all looked good. To my surprise, I now have no PRNDL lights or reverse lights (confirmed both of these were working prior to pulling fuses). Effin' A, now I've made it worse...
I'll go dig through the PS fuse panel now...
**Edit**
After going through the other panel, I found that it was fuse #62 mentioned earlier in the thread. Replaced it, everything is working again including speedometer.
So, I can attribute the speedometer failure to the yellowbox being destroyed, and the reverse lights/PRNDL to the 10 amp #62 fuse, but... Why would the #62 fuse on the PS panel have popped only after I'd reconnected the yellowbox and gone through the DS panel fuses? If the brake light resistors are to blame, why now and not in any of the 1700 miles the truck just did this weekend?
Nope. Still bad.
So I went through the DS footwell fuse panel. I pulled every fuse out and checked, all looked good. To my surprise, I now have no PRNDL lights or reverse lights (confirmed both of these were working prior to pulling fuses). Effin' A, now I've made it worse...
I'll go dig through the PS fuse panel now...
**Edit**
After going through the other panel, I found that it was fuse #62 mentioned earlier in the thread. Replaced it, everything is working again including speedometer.
So, I can attribute the speedometer failure to the yellowbox being destroyed, and the reverse lights/PRNDL to the 10 amp #62 fuse, but... Why would the #62 fuse on the PS panel have popped only after I'd reconnected the yellowbox and gone through the DS panel fuses? If the brake light resistors are to blame, why now and not in any of the 1700 miles the truck just did this weekend?
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