Software Safe Mode
WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The windshield wiper motor defaults to software safe mode when the run/park sensor does not sense the Hall-effect magnet inside the wiper motor. This can be caused by an obstruction of the windshield wipers, a binding linkage or loss of the Hall-effect sensor signal. The motor continues to operate in a high/low-speed condition, and when turned off, the wipers immediately park on the windshield. If necessary, the wipers can be turned on and off until they return to the PARK position.
WINDSHIELD WIPER CIRCUIT FUNCTION TABLE
| Multi-Function Switch Position | Circuit CRW07 (GY/BN) | Circuit CRW08 (VT/OG) | Circuit CRW19 (BU/OG) | Circuit CRW18 (VT/WH) | Circuit CRW17 (GN/VT) |
|---|---|---|---|---|---|
| OFF | OPEN | OPEN | OPEN | OPEN | OPEN |
| INT 1 | OPEN | OPEN | OPEN | OPEN | GROUND |
| INT 2 | OPEN | OPEN | OPEN | GROUND | GROUND |
| INT 3 | OPEN | OPEN | OPEN | GROUND | OPEN |
| INT 4 | OPEN | OPEN | GROUND | GROUND | OPEN |
| INT 5 | OPEN | OPEN | GROUND | OPEN | OPEN |
| LOW | OPEN | OPEN | GROUND | OPEN | GROUND |
| HIGH | OPEN | GROUND | GROUND | OPEN | GROUND |
| WASH | GROUND | OPEN/GROUND | OPEN/GROUND | OPEN/GROUND | OPEN/GROUND |
REAR WIPER CIRCUIT FUNCTION TABLE
| Multi-Function Switch Position | Circuit CRW21 (YE/VT) | Circuit CRW20 (GY/YE) |
|---|---|---|
| OFF | OPEN | OPEN |
| INT 1 | OPEN | GROUND |
| INT 2 | GROUND | GROUND |
| WASH | GROUND | OPEN |