Having trouble posting this question. Our family mechanic put a new alternator and battery in my…

Having trouble posting this question. Our family mechanic put a new alternator and battery in my 2006 Mercury Mariner. When I got it back, my back up sensors no longer worked and my rear-view mirror has to be put back to regular view from dim view every time I start it up. When I took it back, they ran a computer scan and these were the codes they found. U1900 - ABS CAN COMMUNICATION BUS FAULT
B2097 - COMPASS MODULE FAIL
B1218 - LOW BATTERY VOLTAGE AT MODULE
B1342 - FAUTY CONTROL MODULE
B2407 - BACK UP LIGHT RELAY CIRCUIT HIGH
B1304 - ACCESSORY DELAY RELAY COIL SHORT TO BATTERY
B106E - SOLID STATE DRIVER DISABLED DUR TO SHORT CIRCUIT
Are any of these codes a clue to why my censors are not working and the constant reset of my rear-view mirror the other other setting? I really MISS my censors and I want them back. Any clue on how to fix it?

If the fuses are all good, may have a bad body control module. See if you can work out a deal to get it repaired, especially,if it coincided with their repair.

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