body ecu troubles

[prae]

Long story short, I had my 2001 highlander limited in for some minor bodywork on the driver's side front and rear doors. When I got it back, the driver's door no longer registered as ajar. All three other doors work fine.

After extensive testing, Pin 11 on connector B11 of the BECU is being correctly grounded by the door switch and harness, but pin 19 on B11 (ground of the courtesy light) never gets pulled to ground. None of the functionality dependent upon driver’s door logic (interior lights, theft deterrent, auto headlights, immobilizer and keyless programming, etc) is functioning. Diagnostics performed as per Toyota’s SAE manual indicate
a body ECU failure.

Am I right to come to this conclusion? I've never seen or heard anything about this problem on the boards. I am stumped as to how the bodyshop could have fried this part of the body ecu?! The best theory I came up with was I saw that the connector for the courtesy light was mangled so perhaps they shorted the constant 12V to pin 19 (switched ground to control the light). However I figured that pin ought to be able to sink that sort of current.

After much argument, I'm splitting the cost of the part with the shop (ugh) and they will install the replacement ECU. I just wanted to be certain we were on the right track before we go to the expense and trouble of replacing it.

I cross-posted this on Tnation as well.