1. Disconnect the negative battery cable.
2. Remove the washer tank. (See WASHER TANK REMOVAL/INSTALLATION)
3. Connect battery positive voltage to the terminal B and ground to the terminal A of the motor.
4. Verify that the rear washer motor operates.

Rear washer motor removal/installation
Rear wiper motor removal/installationMazda 6 Service Manual: Dtc c1148, c1158, c1168, c1178, c1233, c1234, c1235, c1236
Caution
When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness
connector, the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM
INSPECTION.)
Diagnostic procedure
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Mazda 6 Service Manual: Radar Sensor (Front) (Some models)
Your vehicle is equipped with a radar sensor (front).
The following systems also use the radar sensor (front).
Distance Recognition Support System (DRSS)
Mazda Radar Cruise Control (MRCC)
Smart Brake Support (SBS)
The radar sensor (front) functions by detecting the radio waves reflected ...