mechanic says he cannot reset LADS fault. i had him check to see if lower access door input was going low when door opens. also checked that the input was going low when the CIO check was low, and it all checked out ok. if he removed the wire from the cio output that went to the door locks, put the car on inspection and reset the fault, the car indicates inspection operation, as soon as he puts the wire for the door lock circuit back on, the lads fault appears, car will only run from access in the hall, will not run from mr inspection. he sent the cpu board in for repair. any other things to look for? he is hoping the board will fix the problem but just looking for ideas in case it does not thanks