Hmm thats what I thought but when I tried it didn't come on, i wasn't trying that hard for obvious reasons though...
somewhat unrelated but my obc speed is stuck at 13.4 mph or something like that. Which speed sensor feeds to OBC, and does the check control go by that speed or the speed to the speedometer (i believe that differential one) which is clearly working?
Okay further research tells me there is just that one speed sensor.. but every thread seems to be unresolved for people whos speedometer works fine but the obc is getting the wrong info. There was some mention of a calculated signal vs. the signal going straight from the sensor. The calculated I guess has something to do with the GM?
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