Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The rear wiper relay control circuit is shorted to ground or open.
The accessory voltage circuit to the coil side of the relay is open.
The accessory voltage circuit is shorted to ground between the fuse and the rear wiper motor.
The rear window wiper motor control circuit is shorted to ground.
The RR WIPER 15-amp fuse is open.