2. The mirror control switch usually has a selector that switches the voltage supply to the left or right mirror. With the ignition on (with the engine off) lower the door windows and check the operation of both mirrors in all directions (up-down and left-right).
3. Listen carefully to the noise when turning on the corresponding electric motor.
4. If the noise of the electric motor is heard, but the mirror remains stationary, the fault may lie in the mirror movement mechanism. To fix the problem, remove and disassemble the mirror.
5. If the mirror is motionless and no noise from the electric motor is heard, first check the serviceability of the car radio fuse (15 A), located in the fuse box installed in the car's interior (see paragraph 3).
6. If the fuse is good, remove the mirror control switch without disconnecting the wiring from it. On Probe and Mazda MX-6 models, this switch is located on the driver's door. On the Mazda 626 model, the switch is installed on the left side of the instrument panel (figure 26.6). Turn on the ignition and check for voltage at the switch terminal. There should be voltage at only one terminal. If there is no voltage, check the wiring between the fuse and the switch.
7. If voltage is present, disconnect the switch. Check for contact between the switch terminals in all positions (figure 26.7, a-c). If the switch is faulty, replace it.
8. Connect the switch. Locate the switch ground wire. Press the switch and connect the ground terminal to the vehicle ground using a jumper. If the electric motors start to run, repair the break in the switch ground.
9. If the mirror does not start working, remove the cover and check for voltage at the mirror motor terminal (using a test light). This check should be performed with the ignition on and the mirror control switch button pressed. Turn the switch to all positions and check for voltage at the corresponding terminal.
10. If there is no voltage in all switch positions, check the wiring between the mirror and the switch. Repair short circuit or open circuit in electrical wiring.
11. If voltage is present, remove the mirror and connect the jumper control motors directly to the battery. If the electric motors still do not work, replace the mirror (see chapter 11).