This thread sounds exactly like what is going on with my 93 Deville.
No 1st gear (auto), E40 error, and I had an A/C error code that I cleared the other day too.
A 15A fuse labeled ERLS protects the following circuits:
A/C compressor Control Relay, Viscous Converter Clutch Brake Switch, EGR Solenoid,
Vapor Cannister Purge Solenoid, Power Steering Pressure Switch
Reports of a shorted coil in the A/C compressor clutch has been known to blow that fuse.
Last edited by Stealth; 07-02-2009 at 03:18 PM.