DX. Why are rear wiper and hazard signals not working?

Sounds like you might have a bad multifunction switch. You can test the outputs of the switch to confirm.

Any ideas on what else to check?
Yeah, hook up a professional grade scan tool an check for DTC'S -diagnostic trouble codes in the BCM - body control module. Seeing how it controls (turns on) these lights. Turn/hazard indicators flashing fast means a bad bulb or short circuit somewhere.

DTC B3949: Right Front Turn Signal Circuit
Circuit/System Description
Ground is applied at all times at G200 to the turn signal/multifunction switch. The turn signal lamps may only be activated with the ignition switch in the ON or START position. When the turn signal/multifunction switch is placed in either the TURN RIGHT or TURN LEFT position, ground is applied to the body control module (BCM) through either the right turn or left turn signal switch signal circuit. The BCM then applies a pulsating voltage to the front and rear turn signal lamps through their respective control circuits. When a turn signal request is received by the BCM, a serial data message is sent to the instrument panel cluster (IPC) requesting the respective turn signal indicator be pulsed ON and OFF.

DTC B3951: Right Rear Turn Signal Circuit
DTC B3951 will set when the BCM detects a short to ground or an open/high resistance in the RR turn signal control circuit.

DTC B3950: Left Rear Turn Signal Circuit

DTC B3948: Left Front Turn Signal Circuit

DTC B3445: Stop Lamp Circuit

I would replace the turn signal hazard combo switch.

Hi,try checking fuses if you havent done so already,all the best

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Diagnose Turn Signal Problems eHow

probably a fuse or wiring trouble

ck fuses for wipers and rear wiper, the signal flashes fast most likely because theres a bulb out, turn on the hazard lights and see which bulb is out.

The hazard switch , turn signal switch , wiper switch are useually all one piece, Called a combo switch, They are known for going bad

sounds like flasher bad for turn signals