Hey all. I have a 14 ST and almost 2 weeks ago my car died coming to a light. it restarted promptly but the cluster, mft, hvac, windows, and keyfob stopped functioning as they should. i had to hold the fob up to the ignition to get it to start.
fast forward, i am able to pull my unleashed tune off the car. the x4 flashes the car successfully. i can start the car with no cluster et al a few more times. I had a final to take that day so i left the battery disconnected for a few hours. Car would not start after reconnecting the battery.
Had it towed to ford and they refused to work on it under warranty due to the modified harness for the stereo.
So, instead of paying $3200 for them to unnecessarily replace my harness to continue work, I payed their diag fee and towed the car home. They removed a dealer-installed immobilizer alarm to what I assume was the fullest (they only removed and returned to stock the BCM wiring - what I believe is an hs can wire (solid white wire on the top left c2280 plug) and a few other misc (power, starter, DRL). They were returned 'to factory specs' presumably, but without my consent. The car completely died on their lot, so I put a charger on it and I'm able to get the car to accessory. the dealership also said they replaced a few fuses in the bcm, so all of the interior functions that previously did not work did. cluster, hvac, sync, etc.
When I turn the car on (it will not start. ALSO, I plugged in my X4 to pull codes and it cannot communicate with the pcm.) it flashes Engine Fault Service Soon / Hill Start disabled / Engine ON / etc etc.
I pulled up a Ford Service Manual and ran minimal diagnosis on the module communication network. I was pulling a high ohm rating (2x what it acceptable. i was reading 118 ohms when i should be reading 57-66). I cannot get to the pcm currently but I pulled the bcm harness and tested the hscan wires on there and got acceptable ohm measurements of <3 ohms, so I ruled out the bcm.
Thank you for anyone who can offer any headway on what I should check next.
fast forward, i am able to pull my unleashed tune off the car. the x4 flashes the car successfully. i can start the car with no cluster et al a few more times. I had a final to take that day so i left the battery disconnected for a few hours. Car would not start after reconnecting the battery.
Had it towed to ford and they refused to work on it under warranty due to the modified harness for the stereo.
So, instead of paying $3200 for them to unnecessarily replace my harness to continue work, I payed their diag fee and towed the car home. They removed a dealer-installed immobilizer alarm to what I assume was the fullest (they only removed and returned to stock the BCM wiring - what I believe is an hs can wire (solid white wire on the top left c2280 plug) and a few other misc (power, starter, DRL). They were returned 'to factory specs' presumably, but without my consent. The car completely died on their lot, so I put a charger on it and I'm able to get the car to accessory. the dealership also said they replaced a few fuses in the bcm, so all of the interior functions that previously did not work did. cluster, hvac, sync, etc.
When I turn the car on (it will not start. ALSO, I plugged in my X4 to pull codes and it cannot communicate with the pcm.) it flashes Engine Fault Service Soon / Hill Start disabled / Engine ON / etc etc.
I pulled up a Ford Service Manual and ran minimal diagnosis on the module communication network. I was pulling a high ohm rating (2x what it acceptable. i was reading 118 ohms when i should be reading 57-66). I cannot get to the pcm currently but I pulled the bcm harness and tested the hscan wires on there and got acceptable ohm measurements of <3 ohms, so I ruled out the bcm.
Thank you for anyone who can offer any headway on what I should check next.
