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Lights stuck on

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Old 05-08-2013, 08:48 AM
Machplowboyny Machplowboyny is offline
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Lights stuck on

So I was downloading a new tune from my SCT Livewire about 2 weeks ago in the McD's parking lot when it wiped my pcm clean. While messing with the truck the running lights came on, auto setting, and they won't go back off without disconnecting the battery negatives. I even pulled every relay while they were on and nothing. It's fine during the day but once the auto lights kick on the parking lights are locked on. If I take the key out even with the switch in the off position they will stay on and the chime dings like I left my lights on. While I was messing with it and hitting the brake the tbc fault was coming up. No trailer attached. Since I bought the truck, anytime the trailer was attached and I hit the brake I'd get trailer disconnected message so I figured it was in my trailer plug and it was back feeding. No dice. Truck is an 05 F 250 CCSB Lariat 6.0 4x4. I'm in NY but truck is from Texas. Extremely clean. Any ideas where to start? Thanks in advance guys.
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Old 05-08-2013, 08:48 AM

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