Roadmaster Estate Wagon V8-350 5.7L (1993)
Blower Motor: Initial Inspection and Diagnostic Overview
Electronic
1.
Check for an open in Fuse 3. If open, repair short to ground in CKT 640.
2.
Check for an open in Fuse 6. If open, repair short to ground in CKT 50.
3.
Check for an open in Fuse 7. If open, repair short to ground in CKT 740.
4.
Check for corrosion on connector terminal at Blower Motor and Electronic A/C Power Module.
5.
Make sure ground G200 is clean and tight.
6.
If Blower Motor can be controlled in either the Manual mode or the Auto mode but not in both, replace the Electronic A/C Control Assembly.
