cypher25

Just bought a 2006 F-150 King Ranch not too long ago and the radio does not power up at all, when you change into 4wd, no 4H or 4L lights come on (and pretty sure it didn't switch over), and when trying to run a test through the setup menus, at auto door locks I get a Data Err.

I have checked the fuses for the radio with no luck, will be looking at relays later today to see if there is anything there...but looking for any ideas or if anyone else has had this issue and what they may have found to be the problem.

homer

Data Err sounds like a can-bus or uart-based-protocol (UBP) related issue which is not good... it could be having troubles communicating from the BCM to the PCM or one of the two could have failed (partially failed in PCM case if the truck still starts and runs). I'm more leaning that your BCM may have failed or you have a wiring issue somewhere.

If you haven't already, disconnect the battery for 10 minutes and see if that helps. Data Err I would think is more it's having difficulty communicating (noise on the line or similar), or bad memory in one of the modules instead of no communication. I'm thinking more corrosion or something that's inhibiting the signal. Have you added any remote start or anything that ties into the can-bus at your datalink connector? Although again, I'm still leaning towards a poor connection.

Have a look at this old post: https://www.f150forum.com/f3/dome-li...utolock-66704/


This is more related to a NO COMMUNICATION error but might be useful:

Based on the 2008 Can-bus (changed): http://www.automotivetroubleshooting..._protocol.html
Yours will more likely match this one: http://www.automotivetroubleshooting..._protocol.html